Feeding device for melt direct spinning

Abstract

The utility model discloses a feeding device for melt direct spinning, and belongs to the technical field of direct spinning feeding devices. Comprising a booster pump, an output pipe is arranged above the booster pump, the output pipe is connected with a feeding pipe, a rotating mechanism is arranged between the output pipe and the feeding pipe, and a first condensation mechanism and a second condensation mechanism are arranged outside the feeding pipe; a fan is arranged at the top in the first condensation mechanism, and a stirrer used for stirring condensate is arranged at the bottom in the second condensation mechanism. According to the feeding device, the first condensation mechanism and the second condensation mechanism are arranged, and the design of the fan and the stirrer is combined, so that efficient cooling of the feeding pipe is achieved. Meanwhile, the temperature of the melt in the pipeline is uniform through the rotatable and spiral feeding pipe, the flowing path of the melt in the pipeline is prolonged, and the cooling time is prolonged. And by arranging the temperature sensor, the device can monitor the melt temperature in real time, and the stability and consistency of the spinning process are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of direct spinning feeding devices, in particular to a feeding device for melt direct spinning. Background Art

[0002] Melt spinning is a process used in chemical fiber production that directly transfers polymer melt from a polymerization reactor to a spinning machine for fiber formation, bypassing intermediate steps such as solidification, slicing, and remelting. In melt spinning, melt temperature is crucial to the spinning process. To ensure fiber quality, the melt must be maintained within an appropriate temperature range during the transfer process. However, existing technologies often suffer from slow cooling rates in the feed pipe, resulting in poor cooling efficiency and unstable temperature control, which can affect fiber quality.

[0003] The utility model patent with publication number CN207877958U discloses a melt-spinning feeding device, including a booster pump, a water tank on the right side of the booster pump, a feeding pipe on the upper side of the booster pump, an outer shell on the outer side of the feeding pipe, a circulating water pump on the upper side of the water tank, and a motor fixedly connected to the right end of the water tank. The utility model has a semiconductor refrigeration device. After power is turned on, the refrigeration plate cools the right side and dissipates heat on the left side. The right side of the refrigeration plate transfers the cold energy to the first heat dissipation aluminum plate through the first copper plate, thereby cooling the water in the water tank. The circulating water pump can pump the cold water upward into the interior of the outer shell, thereby cooling the feeding pipe. However, the protective device still has the following problems when used: (1) There is no cooling device on the outer shell of the feeding pipe, resulting in poor cooling effect; (2) The temperature is not monitored and cannot be adjusted according to the current temperature. Utility Model Content

[0004] To address the aforementioned issues, the present invention provides a feeding device for melt-spinning. By providing a first condensing mechanism and a second condensing mechanism, combined with a fan and agitator, efficient cooling of the feeding tube is achieved. The spiral feeding tube extends the melt's flow path within the tube. A temperature sensor enables real-time monitoring of the melt temperature.

[0005] In order to achieve the above purpose, the technical solutions adopted by this utility model are as follows:

[0006] A feeding device for melt direct spinning includes a booster pump, an output pipe is provided above the booster pump, the output pipe is connected to a feeding pipe, a rotating mechanism is provided between the output pipe and the feeding pipe, and a first condensing mechanism and a second condensing mechanism are provided outside the feeding pipe; a fan is provided at the top of the first condensing mechanism, and a stirrer for stirring the condensate is provided at the bottom of the second condensing mechanism.

[0007] Furthermore, the rotating mechanism includes a first flange, a second flange and a crawler; a groove is provided in the first flange, and a block that cooperates with the groove is provided at the end of the feeding pipe near the first flange. A coupling is provided between the first flange and the second flange, and the coupling cooperates with the crawler.

[0008] Furthermore, the fan includes a first base and a plurality of fan blades.

[0009] Furthermore, the blender includes a second base and a plurality of stirring bars.

[0010] Furthermore, a water outlet pipe is provided below the second condensing mechanism, and the water outlet pipe is connected to a refrigeration box. A water pump is provided above the second condensing mechanism, and the water pump is connected to the refrigeration box via a water inlet pipe.

[0011] Furthermore, a first temperature sensor is provided between the first condensing mechanism and the second condensing mechanism.

[0012] Furthermore, a three-way valve is connected to the right end of the feeding pipe, and a second temperature sensor is provided between the second condensing mechanism and the three-way valve.

[0013] The beneficial effects of the utility model are:

[0014] 1. The feeding device of this utility model achieves efficient cooling of the feeding tube by providing a first condensing mechanism and a second condensing mechanism, combined with a fan and a stirrer. Furthermore, the rotatable, spiral-shaped feeding tube ensures uniform melt temperature within the tube, extending the melt flow path within the tube and increasing cooling time. The device also incorporates a temperature sensor to monitor melt temperature in real time, ensuring stability and consistency during the spinning process.

[0015] 2. The feeding device of this utility model achieves efficient cooling of the feeding tube through the configuration of a first condensing mechanism and a second condensing mechanism, combined with a fan and a stirrer. The fan helps to enhance air flow around the feeding tube, accelerating melt cooling. The stirrer further enhances the cooling effect by stirring the condensate, ensuring temperature uniformity during the cooling process. This dual condensation design improves the efficiency of melt condensation during the feeding process.

[0016] 3. The feeding pipe is designed in a spiral shape, which extends the flow path of the melt in the pipe, makes the cooling time more sufficient, ensures that the melt can be cooled evenly during the transportation process, and avoids fiber quality problems caused by insufficient cooling.

[0017] 4. By providing a first temperature sensor and a second temperature sensor, the melt temperature in the condensation mechanism can be monitored in real time to ensure that the melt is within the appropriate temperature range. When the first condensation mechanism has lowered the temperature to the appropriate level, the second condensation mechanism is not activated. This precise temperature monitoring function enables the feeding device to more intelligently control the temperature, ensuring consistent spinning quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the feeding device in the utility model.

[0019] Figure 2 This is a front view of the feeding device of the utility model without the front plate of the condensation mechanism.

[0020] Figure 3 It is a structural diagram of A in the present utility model.

[0021] Figure 4 This is a schematic diagram of the exploded structure of the first flange, the feeding pipe and the second flange in the utility model.

[0022] Figure 5 It is a cross-sectional view of the first flange in the present invention.

[0023] Figure 6 This is a front view of the condensing mechanism of the present invention without the front plate.

[0024] Figure 7 This is a top view of the condensing mechanism of the present invention without the upper plate.

[0025] Among them: 1. Booster pump; 2. Refrigeration box; 3. First condensing mechanism; 4. Second condensing mechanism; 5. Output pipe; 6. Feeding pipe; 7. Rotating mechanism; 8. Three-way valve; 9. Second temperature sensor; 21. Water pump; 22. Water inlet pipe; 23. Water outlet pipe; 31. Fan; 32. First temperature sensor; 41. Mixer; 71. Motor; 72. First flange; 73. Second flange; 74. Coupling; 75. Track; 311. First base; 312. Fan blades; 411. Second base; 412. Stirring bar; 721. Groove; 731. Block. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "front end", "back end", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0029] Refer to the attached Figure 1-7 A feeding device for melt direct spinning shown in the figure includes a booster pump 1, an output pipe 5 is provided above the booster pump 1, the output pipe 5 is connected to a feeding pipe 6, a rotating mechanism 7 is provided between the output pipe 5 and the feeding pipe 6, and a first condensing mechanism 3 and a second condensing mechanism 4 are provided outside the feeding pipe 6; a fan 31 is provided at the top of the first condensing mechanism 3, and a stirrer 41 is provided at the bottom of the second condensing mechanism 4, and the feeding pipes 6 in the first condensing mechanism 3 and the second condensing mechanism 4 are spiral-shaped.

[0030] The melt is pressurized and delivered to the output pipe 5 by a booster pump 1, and then connected to the feed pipe 6 by a rotating mechanism 7 to ensure continuous flow of the melt. The first condensing mechanism 3 and the second condensing mechanism 4 outside the feed pipe 6 cool the melt using a fan 31 and a stirrer 41, respectively, to ensure accurate temperature control.

[0031] The rotating mechanism includes a motor 71, a first flange 72, a second flange 73, and a track 75. A groove 721 is defined within the first flange, and a block 731 is provided at the end of the feeding tube near the first flange, which engages with the groove 721. A coupling 74 is provided between the first and second flanges 72, 73. The coupling 74 engages with the track 75, which is driven by the motor 71. The motor 71 can be mounted on the top of the refrigeration box 2 or on top of another supporting structure.

[0032] Specifically, the first flange 72 is fixedly connected to the output pipe 5. With the cooperation of the groove 721 and the block 731, the first flange 72 and the second flange 73 are rotatably connected. The second flange 73 is fixedly connected to the feeding pipe 6. The motor 71 drives the track 75 to rotate, which in turn drives the coupling 74 to rotate, causing the feeding pipe 6 to rotate. The rotation of the feeding pipe 6 can make the contact between the melt and the condensation mechanism more uniform, ensuring that each part of the cooling process can fully dissipate heat, thereby improving the overall cooling efficiency. By rotating the feeding pipe 6, the melt will not be retained on the pipe wall for a long time, thereby reducing the contact time between the melt and the pipe wall and effectively avoiding adhesion and blockage problems.

[0033] The fan 31 includes a first base 311 and a plurality of fan blades 312 .

[0034] Fixed by the first base 311 , the plurality of fan blades 312 generate airflow by rotating, thereby increasing the airflow circulation in the first condensing mechanism 3 and accelerating the heat dissipation around the melt.

[0035] The blender 41 includes a second base 411 and a plurality of blending bars 412 .

[0036] The rotation of the stirring bar 412 makes the condensate flow more evenly, avoids uneven cooling, and improves heat exchange efficiency. By stirring the condensate, the heat of the melt is fully absorbed, effectively enhancing the cooling effect and ensuring that the temperature of the melt remains consistent throughout the cooling process.

[0037] A water outlet pipe 23 is provided below the second condensing mechanism 4 , and the water outlet pipe 23 is connected to the refrigeration box 2 . A water pump 21 is provided above the second condensing mechanism 4 , and the water pump 21 is connected to the refrigeration box 2 via a water inlet pipe 22 .

[0038] Connected to the refrigeration box 2 via the outlet pipe 23, a circulating cooling system is established. The water pump 21 delivers the coolant in the refrigeration box 2 to the second condensing mechanism 4 via the inlet pipe 22 for cooling. After absorbing heat from the second condensing mechanism 4, the condensed liquid flows back to the refrigeration box 2 through the outlet pipe 23 for recycling.

[0039] A first temperature sensor 32 is provided between the first condensing mechanism 3 and the second condensing mechanism 4 .

[0040] The first temperature sensor 32 is used to monitor the temperature of the melt between the first condensing mechanism 3 and the second condensing mechanism 4 in real time. Through accurate temperature monitoring, the device can automatically adjust the cooling system according to actual temperature changes, ensuring that the melt temperature remains within the appropriate range. When the first condensing mechanism 3 has lowered the temperature to the appropriate level, the second condensing mechanism 4 is not activated.

[0041] A three-way valve 8 is connected to the right end of the feed pipe 6, and a second temperature sensor 9 is provided between the second condensing mechanism 4 and the three-way valve 8. The three-way valve 8 controls the flow direction of the melt, allowing for flexible switching based on production needs and adapting to the requirements of different processes. The second temperature sensor 9 monitors the temperature of the melt before it enters the three-way valve 8, ensuring that it reaches the optimal temperature range before entering the next process step.

[0042] A rotating mechanism 7 is also provided between the second condensing mechanism 4 and the three-way valve 8 . The two rotating mechanisms 7 rotate synchronously to drive the feeding pipe 6 to rotate.

[0043] Specific application cases:

[0044] When a factory requires a melt-spinning process, a specific application method of a melt-spinning feeding device of the present application is as follows:

[0045] At the start of production, the polyester raw material is pressurized by a booster pump 1, and the molten polyester melt enters the feeding pipe 6 through the output pipe 5. The rotating mechanism 7 is turned on, causing the feeding pipe 6 to start rotating, making the contact between the melt and the condensing mechanism more uniform, ensuring that every part of the cooling process can fully dissipate heat. The feeding pipe 6 in the condensing mechanism is designed to be spiral-shaped, which increases the flow time of the melt in the pipe. The fan 31 in the first condensing mechanism 3 quickly removes the heat from the surface of the feeding pipe 6 through air circulation, initially cooling the melt. After the melt passes through the second condensing mechanism 4, the stirrer 41 stirs the condensate to achieve further heat conduction, allowing the coolant to fully absorb the heat from the melt and ensure the uniformity of the condensate temperature. During the production process, a first temperature sensor 32, located between the first condensing mechanism 3 and the second condensing mechanism 4, monitors the temperature of the melt in real time. If the temperature is too high, the system will adjust the temperature by adjusting the speed of the coolant flow to ensure that the melt temperature is stable within the range required by the process. When the melt reaches the appropriate temperature, a second temperature sensor 9 within the second condensing mechanism 4 further monitors the melt's temperature before it enters the three-way valve 8, ensuring accurate temperature before it flows to the next process and avoiding fiber quality issues caused by temperature fluctuations. The three-way valve 8 can also adjust the melt flow direction according to production requirements.

[0046] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for melt direct spinning, comprising a booster pump (1), characterized in that: An output pipe (5) is provided above the booster pump (1), the output pipe (5) is connected to a feeding pipe (6), a rotating mechanism (7) is provided between the output pipe (5) and the feeding pipe (6), and a first condensing mechanism (3) and a second condensing mechanism (4) are provided outside the feeding pipe (6); A fan (31) is provided at the top of the first condensing mechanism (3), and a stirrer (41) for stirring the condensate is provided at the bottom of the second condensing mechanism (4).

2. A melt-spinning feeding device according to claim 1, characterized in that: The rotating mechanism (7) includes a first flange (72), a second flange (73) and a crawler (75); A groove (721) is provided in the first flange (72), and a clamping block (731) that matches the groove (721) is provided at the end of the feeding pipe (6) near the first flange (72). A coupling (74) is provided between the first flange (72) and the second flange (73), and the coupling (74) cooperates with the crawler (75).

3. The melt-spinning feeding device according to claim 1, characterized in that: The fan (31) comprises a first base (311) and a plurality of fan blades (312).

4. The melt-spinning feeding device according to claim 1, characterized in that: The blender (41) comprises a second base (411) and a plurality of blending bars (412).

5. The melt-spinning feeding device according to claim 1, characterized in that: A water outlet pipe (23) is provided below the second condensing mechanism (4), and the water outlet pipe (23) is connected to the refrigeration box (2). A water pump (21) is provided above the second condensing mechanism (4), and the water pump (21) is connected to the refrigeration box (2) via a water inlet pipe (22).

6. The melt-spinning feeding device according to claim 5, characterized in that: A first temperature sensor (32) is provided between the first condensing mechanism (3) and the second condensing mechanism (4).

7. The melt-spinning feeding device according to claim 6, characterized in that: The right end of the feeding pipe (6) is connected to a three-way valve (8), and a second temperature sensor (9) is provided between the second condensing mechanism (4) and the three-way valve (8).

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