Intelligent temperature control chemical fiber melt spinning device

Abstract

The invention relates to the technical field of chemical fiber melt spinning devices, and discloses an intelligent temperature control chemical fiber melt spinning device which comprises a melt spinning device body with a spinning nozzle, the melt spinning device body pressurizes chemical fiber melt under pressure to enable the chemical fiber melt to penetrate through the spinning nozzle to form filaments, a rectifying air duct with an up-down through hole is fixedly connected below the melt spinning device; the side edge of the rectifying air duct is provided with a flat air inlet nozzle for side air inlet, and the tail end of the flat air inlet nozzle is connected with an air pipe and used for feeding cooling air into the rectifying air duct and fully contacting with chemical fibers penetrating through the rectifying air duct for heat exchange after shunting, so that the chemical fibers are cooled and solidified. Through the structural design of the air pipe, the ventilation cylinder and the air cutting plate which are designed in the tangential direction, transverse supplied air is differentiated and pressed in along the air seepage holes, the transverse inertia kinetic energy of the air is effectively reduced, and in addition, the air is more uniform.

Description

Technical Field

[0001] The invention relates to the technical field of intelligent temperature-controlled chemical fiber melt-spinning devices, in particular to an intelligent temperature-controlled chemical fiber melt-spinning device. Background Art

[0002] The existing Chinese patent publication number is (CN103710768B), and the patent disclosed therein has the following problems. For example, when the cooling air passes through the extension tube quickly, the internal flow rate is greater than the external flow rate, causing the external air to quickly enter the extension tube with dust and contact the chemical fiber yarn, causing the chemical fiber yarn to be contaminated with dust. In addition, its centralized exhaust will affect the oil application device below and cannot oil the chemical fiber yarn well. In addition, there is no good diffusion and air guide device in the cooling air supply box. In this way, after the cooling air enters the cooling air supply box, its lateral kinetic energy is large, which will blow the chemical fiber yarn into disorder or cause it to be unevenly stretched laterally.

[0003] This case is proposed to solve or improve the shortcomings or deficiencies of the prior art. Summary of the invention

[0004] The present invention solves the technical problem by adopting the following technical solutions:

[0005] A smart temperature-controlled chemical fiber melt spinning device comprises a melt spinning device with a spinning nozzle, wherein the melt spinning device pressurizes the chemical fiber melt under pressure so that it passes through the spinning nozzle to form filaments, and a rectifying air cylinder with upper and lower through-holes is fixedly connected below the melt spinning device, a flattened air inlet nozzle for side air intake is provided on the side of the rectifying air cylinder, and the tail end of the flattened air inlet nozzle is connected to the air duct for sending cooling air into the rectifying air cylinder and fully contacting and exchanging heat with the chemical fiber filaments passing through the rectifying air cylinder after diversion, so as to cool down and solidify the chemical fiber filaments, a device for dispersing and rectifying the cooling air is provided in the rectifying air cylinder, a temperature probe is provided in the flattened air inlet nozzle for detecting the air inlet temperature, and a detachable cooling extension cylinder is also provided at the lower end of the rectifying air cylinder, wherein another temperature probe is provided at the lower end of the cooling extension cylinder for detecting the air outlet temperature, and the wind speed and temperature of the air inlet are adjusted according to the two temperature probe indicators as the adjustment basis.

[0006] In a preferred embodiment, the flattened air inlet nozzle extends into the inner cavity of the rectifying air cylinder along the tangent direction of the outer circle of the rectifying air cylinder and is connected with a ventilated cylinder which passes through the rectifying air cylinder from top to bottom, and the chemical fiber filament passes through the ventilated cylinder. Air infiltration holes are arranged at intervals on the ventilated cylinder for cooling air to penetrate inward from the external cavity of the ventilated cylinder.

[0007] In a preferred embodiment, the air infiltration holes are inclined downward by thirty to sixty degrees, and the air inlet is larger than the air outlet. In the process of cooling air penetrating into the air vent, the lateral kinetic energy of the wind is consumed to prevent the wind from blowing away the chemical fiber filaments. At the same time, the single wind is refined to make it penetrate inward from a circular direction to reduce the turbulence of the cooling air in the pipe.

[0008] In a preferred embodiment, wind cutting plates are provided at annular intervals on the inner wall of the rectifying air duct, the arc angle corresponding to the connection points between two adjacent wind cutting plates and the rectifying air duct is between twenty and thirty degrees, and the wind cutting plates are not provided at the air outlet of the air duct, when the cooling air is blown out from the air duct along the tangent direction of the rectifying air duct, each time it passes through one of the wind cutting plates, the wind will quickly penetrate into the air infiltration holes.

[0009] In a preferred embodiment, the extended surface of the inner wall of the wind cutting plate is tangent to the outer wall of the ventilation tube, so that the wind pressure at various positions on the outer wall of the ventilation tube is more balanced and the transition is smooth, and the wind layers overlap front and back to avoid turbulence.

[0010] In a preferred embodiment, the lower part of the rectifying air duct is also connected to the cooling extension tube through an extension tube connecting part, and the extension tube connecting part can be connected by threads, magnetism or bolts. The cooling extension tube will restrain the cold air discharged from the lower part of the rectifying air duct so that it continues to contact with the chemical fiber yarn, increase the heat exchange and make the chemical fiber yarn more solidified.

[0011] In a preferred embodiment, an air collecting ring is further provided in the cooling extension cylinder, and an upwardly open expansion hole is provided in the middle of the air collecting ring so that the cooling air is further compressed at this point to quickly exchange heat, and a penetrating pressure relief exhaust port is provided in the cooling extension cylinder at an annular interval below the air collecting ring, and a guide air nozzle is fixedly provided at the lower end position of the pressure relief exhaust port. The guide air nozzle is conical and has a conical hole in the middle, and the outer inclined surface of the guide air nozzle is used to guide the cooling air outward to discharge it through the pressure relief exhaust port, thereby reducing the wind pressure at the air outlet of the cooling extension cylinder to avoid affecting the oiling of the spinning oiling device, and the lower end of the cooling extension cylinder is provided with a pressure relief expansion port structure to reduce the wind speed at the exhaust port, and the design of the guide air nozzle can effectively prevent the entry of dust in the prior art.

[0012] In a preferred embodiment, D1 is less than D2, and D3 is equal to D5, and D4 is equal to D7, and D6 is not less than the height of the pressure relief exhaust port. In this way, the wind pressure can be gradually discharged as the chemical fiber yarn is twisted and gathered, and the heat can be taken away without affecting the spinning oiling device.

[0013] The advantages and positive effects of the present invention are: through the tangentially designed air duct 11 and air vent 23 and the structural design of the air cutting plate 21, the lateral air supply is differentiated and pressed into the air infiltration hole 24, which effectively reduces the lateral inertial kinetic energy of the wind and makes it more uniform. In addition, as the chemical fiber yarns are twisted into yarns, the heat dissipation effect is accelerated through the air collecting ring 16, and before being discharged from the cooling extension tube 15, the wind and heat are diffused to the outside of the cooling extension tube 15 in advance through the pressure relief exhaust port 17 and the guide air nozzle 18, reducing the wind speed and pressure at the pressure relief expansion port 19, avoiding the wind from affecting the oiling of the spinning oiling device 20, and above the air collecting ring 16, the cooling wind is concentrated in the middle of the chemical fiber yarn bundle and sufficient heat exchange is carried out, and then in the D4 stage, under the action of the guide air nozzle 18, the heat is diffused outward quickly to the outside and passes through the pressure relief exhaust port 17 to leave the cooling extension tube 15, achieving a good heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the internal structure of the rectifying air cylinder 13 of the present invention;

[0017] Figure 3 yes Figure 1 Schematic diagram of the structure in horizontal section (the air duct 11 is omitted).

[0018] Markings in the attached drawings: 10, melt-spinning device; 11, air duct; 12, flattened air inlet nozzle; 13, rectifying air cylinder; 14, extension tube connecting part; 15, cooling extension tube; 16, air collecting ring; 17, pressure relief exhaust port; 18, guide air nozzle; 19, pressure relief air expansion port; 20, spinning oiling device; 21, wind cutting plate; 23, air vent; 24, air infiltration hole; D1, effective cooling height of rectifying air cylinder; D2, upper section of air collecting ring in cooling extension tube; D3, height of air collecting ring; D4, section from below air collecting ring to guide air nozzle in cooling extension tube; D5, height of guide air nozzle; D6, section from below guide air nozzle to pressure relief air expansion port in cooling extension tube; D7, height of pressure relief air expansion port. DETAILED DESCRIPTION

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0021] like Figure 1-3As shown, the intelligent temperature-controlled chemical fiber melt spinning device described in the present invention comprises a melt spinning device 10 with a spinning nozzle, wherein the melt spinning device 10 pressurizes the chemical fiber melt under pressure so that it passes through the spinning nozzle to form a filament, and a rectifier air cylinder 13 with upper and lower through-holes is fixedly connected below the melt spinning device 10, and a flattened air inlet nozzle 12 for side air intake is provided on the side of the rectifier air cylinder 13, and the tail end of the flattened air inlet nozzle 12 is connected to the air duct 11 for sending cooling air into the rectifier air cylinder 13 and distributing the cooling air at the diversion point. Afterwards, it fully contacts and exchanges heat with the chemical fiber filaments passing through the rectifying air duct 13, thereby causing the chemical fiber filaments to cool down and solidify. A device for dispersing and rectifying the cooling air is provided in the rectifying air duct 13, and a temperature probe is provided in the flattened air inlet nozzle 12 for detecting the air inlet temperature. A detachable cooling extension tube 15 is also provided at the lower end of the rectifying air duct 13, wherein another temperature probe is provided at the lower end of the cooling extension tube 15 for detecting the air outlet temperature, and the wind speed and temperature of the air inlet are adjusted according to the indicators of the two temperature probes as the basis for adjustment.

[0022] In a preferred embodiment, the flattened air inlet nozzle 12 extends into the inner cavity of the rectifying air cylinder 13 along the tangent direction of the outer circle of the rectifying air cylinder 13 and is connected with a ventilated cylinder 23 which passes through the ventilated cylinder 23 from top to bottom. The chemical fiber filament passes through the ventilated cylinder 23. The ventilated cylinder 23 is provided with air infiltration holes 24 at intervals for cooling air to penetrate inward from the external cavity of the ventilated cylinder 23.

[0023] In a preferred embodiment, the air infiltration holes 24 are inclined downward by thirty to sixty degrees, and the air inlet is larger than the air outlet. In the process of the cooling air penetrating into the air vent 23, the lateral kinetic energy of the wind is consumed to prevent the wind from blowing away the chemical fiber filaments. At the same time, the single wind is refined to make it penetrate inward from a circular direction to reduce the turbulence of the cooling air in the pipe.

[0024] In a preferred embodiment, cut-off plates 21 are provided at annular intervals on the inner wall of the rectifying air duct 13, and the arc angle corresponding to the connection points between two adjacent cut-off plates 21 and the rectifying air duct 13 is between twenty and thirty degrees, and the cut-off plates 21 are not provided at the air outlet of the air duct 11. When the cooling air is blown out from the air duct 11 along the tangent direction of the rectifying air duct 13, each time it passes through the cut-off plates 21, the air will quickly penetrate into the infiltration holes 24.

[0025] In a preferred embodiment, the extended surface of the inner wall of the wind cutting plate 21 is tangent to the outer wall of the ventilation tube 23, so that the wind pressure at each position of the outer wall of the ventilation tube 23 is more balanced and the transition is smooth, and the wind layers overlap front and back to avoid turbulence.

[0026] In a preferred embodiment, the lower part of the rectifying air cylinder 13 is also connected to the cooling extension cylinder 15 through an extension cylinder connecting part 14. The extension cylinder connecting part 14 can be connected by threads, magnetism or bolts. The cooling extension cylinder 15 restrains the cold air discharged from the lower part of the rectifying air cylinder 13 so that it continues to contact with the chemical fiber yarn, increases the heat exchange rate and makes the chemical fiber yarn more solidified.

[0027] In a preferred embodiment, an air collecting ring 16 is further provided in the cooling extension tube 15, and an upwardly open expansion hole is provided in the middle of the air collecting ring 16 so that the cooling air is further compressed at this point to quickly exchange heat, and a penetrating pressure relief exhaust port 17 is provided in an annular interval below the air collecting ring 16 in the cooling extension tube 15, and a guide air nozzle 18 is fixedly provided at the lower end position of the pressure relief exhaust port 17. The guide air nozzle 18 is conical and has a conical hole in the middle, and the outer inclined surface of the guide air nozzle 18 is used to guide the cooling air outward to discharge through the pressure relief exhaust port 17, thereby reducing the wind pressure at the air outlet of the cooling extension tube 15 to avoid affecting the oiling of the spinning oiling device 20, and the lower end of the cooling extension tube 15 is provided with a pressure relief expansion port 19 structure for reducing the wind speed at the exhaust port, and the design of the guide air nozzle 18 can effectively prevent the entry of dust in the prior art.

[0028] In a preferred embodiment, D1 is less than D2, and D3 is equal to D5, and D4 is equal to D7, and D6 is not less than the height of the pressure relief exhaust port 17. In this way, the wind pressure can be gradually discharged as the chemical fiber yarn is twisted and gathered, and the heat can be taken away without affecting the spinning oiling device 20.

[0029] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, and therefore the present invention is not limited to the embodiments described in the specific implementation manners. Any other implementation manners derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. An intelligent temperature-controlled chemical fiber melt spinning device, characterized in that: The invention comprises a melt spinning device (10) with a spinning nozzle, wherein the melt spinning device (10) pressurizes a chemical fiber melt under pressure so that the melt fiber melt passes through the spinning nozzle to form a filament, a rectifying air cylinder (13) with upper and lower through openings is fixedly connected below the melt spinning device (10), a flattened air inlet nozzle (12) for side air intake is provided on the side of the rectifying air cylinder (13), and the tail end of the flattened air inlet nozzle (12) is connected to an air duct (11) for sending cooling air into the rectifying air cylinder (13) and separating the cooling air from the cooling air passing through the rectifying air cylinder (13) after diversion. The chemical fiber filaments in the cylinder (13) are fully contacted for heat exchange, thereby causing the chemical fiber filaments to cool down and solidify. A device for dispersing and rectifying the cooling air is provided in the rectifying air cylinder (13), and a temperature probe is provided in the flattened air inlet nozzle (12) for detecting the air inlet temperature. A detachable cooling extension cylinder (15) is also provided at the lower end of the rectifying air cylinder (13), wherein another temperature probe is provided at the lower end of the cooling extension cylinder (15) for detecting the air outlet temperature. The wind speed and temperature of the air inlet are adjusted based on the indicators of the two temperature probes as the basis for adjustment.

2. The intelligent temperature-controlled chemical fiber melt spinning device according to claim 1, characterized in that: The flattened air inlet nozzle (12) extends into the inner cavity of the rectifying air cylinder (13) along the tangent direction of the outer circle of the rectifying air cylinder (13) and is connected with a ventilated cylinder (23) penetrating up and down, and the chemical fiber filament passes through the ventilated cylinder (23). The ventilated cylinder (23) is provided with air infiltration holes (24) at intervals for cooling air to penetrate from the outer cavity of the ventilated cylinder (23) into the inner cavity.

3. The intelligent temperature-controlled chemical fiber melt spinning device according to claim 2, characterized in that: The air infiltration holes (24) are inclined downward by thirty to sixty degrees, and the air inlet is larger than the air outlet. In the process of the cooling air infiltrating into the air vent (23), the lateral kinetic energy of the wind is consumed to prevent the wind from blowing the chemical fiber filaments apart. At the same time, the single wind is refined to make it infiltrate inward from a circular direction to reduce the turbulence of the cooling air in the pipe.

4. The intelligent temperature-controlled chemical fiber melt spinning device according to claim 3, characterized in that: Wind cutting plates (21) are provided at annular intervals on the inner wall of the rectifying air duct (13); the arc angle corresponding to the connection points between two adjacent wind cutting plates (21) and the rectifying air duct (13) is between twenty and thirty degrees, and the wind cutting plates (21) are not provided at the air outlet of the air duct (11); when the cooling air is blown out from the air duct (11) along the tangent direction of the rectifying air duct (13), each time it passes through a wind cutting plate (21), the air will quickly penetrate into the air infiltration hole (24).

5. The intelligent temperature-controlled chemical fiber melt spinning device according to claim 4, characterized in that: The extended surface of the inner wall of the wind cutting plate (21) is tangent to the outer wall of the air vent (23), so that the wind pressure at each position of the outer wall of the air vent (23) is relatively balanced and the transition is smooth, and the wind layers overlap front and back to avoid turbulence.

6. The intelligent temperature-controlled chemical fiber melt spinning device according to claim 5, characterized in that: The lower part of the rectifying air cylinder (13) is also connected to a cooling extension cylinder (15) via an extension cylinder connection part (14). The extension cylinder connection part (14) can be connected via threads, magnetism or bolts. The cooling extension cylinder (15) restrains the cold air discharged from the lower part of the rectifying air cylinder (13) so that it continues to contact with the chemical fiber yarn, thereby increasing the heat exchange and making the chemical fiber yarn more solidified.

7. The intelligent temperature-controlled chemical fiber melt spinning device according to claim 6, characterized in that: An air collecting ring (16) is also provided in the cooling extension tube (15), and an upwardly open expansion hole is provided in the middle of the air collecting ring (16) so that the cooling air is further compressed at this location to quickly exchange heat. A through-pressure relief and exhaust port (17) is provided in an annular interval below the air collecting ring (16) in the cooling extension tube (15), and a guide air nozzle (18) is fixedly provided at the lower end of the pressure relief and exhaust port (17). The guide air nozzle (18) is conical and A conical hole is provided in the middle, and the outer inclined surface of the guide air nozzle (18) is used to guide the cooling air outward and discharge it through the pressure relief exhaust port (17), thereby reducing the wind pressure at the outlet of the cooling extension tube (15) to avoid affecting the oiling of the spinning oiling device (20), and the lower end of the cooling extension tube (15) is provided with a pressure relief expansion port (19) structure to reduce the wind speed at the exhaust port, and the design of the guide air nozzle (18) can effectively prevent the entry of dust in the prior art.

8. The intelligent temperature-controlled chemical fiber melt spinning device according to claim 7, characterized in that: D1 is smaller than D2, and D3 is equal to D5, and D4 is equal to D7, and D6 is not smaller than the height of the pressure relief vent (17), so that the wind pressure can be gradually released as the chemical fiber is twisted and gathered, and the heat can be taken away without affecting the spinning oiling device (20).

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