A multi-station nylon fiber spinning device

Abstract

The utility model belongs to nylon fibre processing technical field, and disclose a kind of nylon fibre multi-station spinning device, including screw extruder, the barrel of screw extruder is connected with raw material tank, the discharge end of screw extruder is connected with spinning beam, the discharge end of spinning beam is connected with cooling assembly, the cooling assembly includes cold air pedestal, the upper portion of cold air pedestal is provided with wind collecting hood, the wind collecting hood is connected with air guide elbow, the air guide elbow is connected with hot air backflow assembly, the raw material tank is connected with hot air backflow assembly, the hot air generated by cooling assembly is introduced into raw material tank, the originally discarded heat can be used to preheat raw material, reduce the time and energy required for screw extruder to heat raw material, to improve production efficiency, proper preheating helps to improve the flowability and uniformity of nylon chip and other raw materials, so that it can be more evenly extruded in spinning process, which is beneficial to improve spinning quality.

Description

Technical Field

[0001] This utility model belongs to the field of nylon fiber processing technology, specifically a multi-station spinning device for nylon fibers. Background Technology

[0002] Nylon fiber, also known as polyamide fiber, is a synthetic fiber with many excellent properties and wide applications in various fields. It is produced by heating and melting the polymerized polyamide resin, which is then conveyed to the spinning box through a screw extruder. After being precisely metered by the spinning pump, it is extruded from the small holes of the spinneret to form a melt stream. The melt stream is cooled and solidified in air or in a specific coagulation bath to form nascent fibers. Depending on the spinning method, it can be divided into melt spinning, solution spinning, etc. Nylon fiber is commonly produced by melt spinning.

[0003] In existing technologies, air cooling during the spinning process generates a large amount of hot air, and directly expelling the hot air will waste thermal energy and also affect the working environment.

[0004] Therefore, a multi-station spinning device for nylon fibers is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a multi-station spinning device for nylon fibers, which has the advantages of energy recovery and utilization, improved production efficiency, and improved raw material performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-station spinning device for nylon fibers, including a screw extruder, wherein the barrel of the screw extruder is connected to a raw material tank, the discharge end of the screw extruder is connected to a spinning box, and the discharge end of the spinning box is connected to a cooling assembly;

[0007] The cooling assembly includes a cold air base, an air collecting hood is provided above the cold air base, the air collecting hood is connected to an air guide bend, the air guide bend is connected to a hot air return assembly, and the hot air return assembly is connected to a raw material tank.

[0008] Preferably, the raw material tank is provided with a stirring assembly, the stirring assembly includes a drive motor, the drive motor is connected to a stirring shaft, and the stirring shaft is provided with spiral blades.

[0009] Preferably, the spinning box consists of a box body, a spinning pump, and a spinneret.

[0010] Preferably, the cooling base includes a housing, an exhaust fan is installed inside the housing, a ventilation mesh plate is provided on the top of the housing, and an air inlet dustproof mesh is provided on the side of the housing.

[0011] Preferably, the top of the cold air base is provided with symmetrically arranged guide rollers, a positioning roller group is provided on the side of the guide rollers that is far away from each other, and a wire splitting frame is provided on the side of the positioning roller group that is far away from each other.

[0012] Preferably, the discharge end of the spinning box is connected to a guide channel, and the bottom end of the guide channel extends through the air guide bend and into the inside of the air collecting hood.

[0013] Preferably, the hot air recirculation assembly includes an air intake pipe, the end of which is connected to a hot air pump, and the outlet of the hot air pump is connected to an annular pipe via a hot air duct. The inner wall of the annular pipe is provided with uniformly distributed nozzles, which are mounted on the raw material tank.

[0014] Preferably, a uniformly distributed raw material mesh is provided on the side of the raw material tank near the top.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, by setting up a hot air recirculation component, introduces the hot air generated by the cooling component into the raw material tank, which can use the originally wasted heat to preheat the raw material, realize the recovery and reuse of energy. Preheating the raw material can make the raw material reach a certain temperature before entering the screw extruder, reduce the time and energy required for the screw extruder to heat the raw material, thereby improving production efficiency. Appropriate preheating helps to improve the flowability and uniformity of raw materials such as nylon chips, so that they can be extruded more evenly during the spinning process, which is conducive to improving the spinning quality.

[0017] 2. This utility model introduces airflow into the raw material tank and uses a hot air pump to control the hot air flow. The airflow can promote the movement of raw materials in the tank and prevent blockage when the raw materials are discharged. In addition, some dust adhering to the raw materials can be discharged with the airflow, thereby improving the quality of the product. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cooling component of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the cooling air base of this utility model;

[0021] Figure 4 This is a cross-sectional view of the cooling air base of this utility model;

[0022] Figure 5 This is a cross-sectional structural diagram of the air guide bend of this utility model;

[0023] Figure 6 This is a structural diagram showing the location of the raw material tank in this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the stirring assembly of this utility model.

[0025] In the picture:

[0026] 1. Screw extruder; 2. Raw material tank;

[0027] 3. Spinning box; 31. Wire guide channel;

[0028] 4. Cooling components;

[0029] 41. Cooling base; 411. Housing; 412. Exhaust fan; 413. Ventilation mesh panel; 414. Air inlet dustproof mesh;

[0030] 42. Air collection hood; 43. Air guide bend;

[0031] 44. Hot air recirculation assembly; 441. Suction duct; 442. Hot air pump; 443. Hot air duct; 444. Circular pipe; 445. Nozzle; 446. Raw material separator;

[0032] 45. Guide roller; 46. Positioning roller assembly; 47. Wire splitting frame;

[0033] 5. Stirring assembly;

[0034] 51. Drive motor; 52. Stirring shaft; 53. Spiral blades. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] like Figures 1 to 7 As shown, this utility model provides a multi-station spinning device for nylon fibers, including a screw extruder 1, a raw material tank 2 connected to the barrel of the screw extruder 1, a spinning box 3 connected to the discharge end of the screw extruder 1, and a cooling assembly 4 connected to the discharge end of the spinning box 3.

[0037] The cooling assembly 4 includes a cold air base 41, an air collecting hood 42 is provided above the cold air base 41, the air collecting hood 42 is connected to an air guide bend 43, the air guide bend 43 is connected to a hot air return assembly 44, and the hot air return assembly 44 is connected to the raw material tank 2. The hot air generated by the cooling assembly 4 is introduced into the raw material tank 2, which can use the originally wasted heat to preheat the raw material, realize the recovery and reuse of energy. Preheating the raw material can make the raw material reach a certain temperature before entering the screw extruder 1, reduce the time and energy required for the screw extruder 1 to heat the raw material, thereby improving production efficiency. Appropriate preheating helps to improve the flowability and uniformity of raw materials such as nylon chips, so that they can be extruded more evenly during the spinning process, which is beneficial to improving the spinning quality.

[0038] Specifically, the raw material tank 2 is equipped with a stirring assembly 5, which includes a drive motor 51. The drive motor 51 is connected to a stirring shaft 52, and the stirring shaft 52 is equipped with spiral blades 53, which can stir the raw materials in the raw material tank 2, making the heat distribution more uniform and reducing the occurrence of blockage.

[0039] Furthermore, the spinning box 3 consists of a box body, a spinning pump, and a spinneret. The spinning pump accurately measures the melt flow rate, and the spinneret has numerous small holes through which the melt is extruded to form fine filaments.

[0040] Furthermore, the cooling base 41 includes a housing 411, an exhaust fan 412 installed inside the housing 411, a ventilation mesh plate 413 on the top of the housing 411, and an air inlet dustproof mesh 414 on the side of the housing 411. The exhaust fan 412 generates an upward airflow, which can cool the spinning yarn passing through the cooling base 41.

[0041] It is worth noting that the top of the cold air base 41 is provided with symmetrically arranged guide rollers 45, and a positioning roller group 46 is provided on the side of the guide rollers 45 that is far away from each other. A filament splitter 47 is provided on the side of the positioning roller group 46 that is far away from each other, for guiding the spinning.

[0042] It is worth noting that the discharge end of the spinning box 3 is connected to a guide channel 31, and the bottom end of the guide channel 31 extends through the air guide bend 43 and into the inside of the air collection hood 42.

[0043] It is worth mentioning that the hot air recirculation assembly 44 includes an air suction pipe 441, the end of which is connected to a hot air pump 442. The outlet of the hot air pump 442 is connected to an annular pipe 444 through a hot air duct 443. The inner wall of the annular pipe 444 is provided with uniformly distributed nozzles 445, which are located on the raw material tank 2.

[0044] It is worth emphasizing that a uniformly distributed raw material mesh 446 is installed on the side of the raw material tank 2 near the top. The airflow can leave the raw material tank 2 from the raw material mesh 446 and carry away some dust adhering to the raw materials, thus ensuring the quality of the product.

[0045] Among them, the screw extruder 1, exhaust fan 412, hot air pump 442, and drive motor 51 are existing technologies and will not be described in detail; at the same time, this utility model also includes power supply, controller and switch, etc., which are not the main technical points of this patent and will not be described in detail.

[0046] Working principle and process: Raw materials are stored in raw material tank 2. After being fed into screw extruder 1 and melted, the raw materials are fed into spinning box 3. The spinning pump accurately measures the melt flow rate. The spinneret has many small holes through which the melt is extruded to form filaments. The filaments are guided into cooling assembly 4 through guide channel 31 and pass through guide roller 45, positioning roller group 46, and filament splitter 47 in sequence. Then, they are wound up by the winding system. The exhaust fan 412 of cooling assembly 4 is started to discharge the air upward, which cools the filaments that have passed through the spinning process. The airflow passing through the spinning process will carry away the heat from the spinning process to form hot air. Then, the hot air guide pump 442 of hot air return assembly 44 is started. The hot air passes through guide bend 43 and suction pipe in sequence. After passing through pipe 441, hot air pump 442, hot air duct 443, and annular pipe 444, the hot air is discharged into raw material tank 2 via nozzle 445. This allows the previously wasted heat to be used for preheating the raw materials, achieving energy recovery and reuse. Preheating the raw materials ensures they reach a certain temperature before entering the screw extruder 1, reducing the time and energy required for the screw extruder 1 to heat the raw materials, thereby improving production efficiency. Appropriate preheating helps improve the flowability and uniformity of raw materials such as nylon chips, enabling them to be extruded more evenly during the spinning process, which is beneficial for improving spinning quality. The airflow carries dust adhering to the raw materials and discharges it through the raw material screen 446, thus improving product quality.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-station spinning device for nylon fibers, comprising a screw extruder (1), characterized in that: The screw extruder (1) has a raw material tank (2) connected to its barrel, a spinning box (3) connected to its discharge end, and a cooling assembly (4) connected to its discharge end. The cooling assembly (4) includes a cold air base (41), an air collecting hood (42) is provided above the cold air base (41), the air collecting hood (42) is connected to an air guide bend (43), the air guide bend (43) is connected to a hot air return assembly (44), and the hot air return assembly (44) is connected to a raw material tank (2).

2. The nylon fiber multi-station spinning device according to claim 1, characterized in that: The raw material tank (2) is provided with a stirring assembly (5), which includes a drive motor (51), the drive motor (51) is connected to a stirring shaft (52), and the stirring shaft (52) is provided with a spiral blade (53).

3. The nylon fiber multi-station spinning device according to claim 1, characterized in that: The spinning box (3) consists of a box body, a spinning pump, and a spinneret.

4. The nylon fiber multi-station spinning device according to claim 1, characterized in that: The cold air base (41) includes a housing (411), an exhaust fan (412) is installed inside the housing (411), a ventilation mesh plate (413) is provided on the top of the housing (411), and an air inlet dustproof mesh (414) is provided on the side of the housing (411).

5. The nylon fiber multi-station spinning device according to claim 1, characterized in that: The top of the cold air base (41) is provided with symmetrically arranged guide rollers (45), and a positioning roller group (46) is provided on the side of the guide rollers (45) that is far away from each other. A wire splitting frame (47) is provided on the side of the positioning roller group (46) that is far away from each other.

6. The nylon fiber multi-station spinning device according to claim 1, characterized in that: The output end of the spinning box (3) is connected to a guide channel (31), and the bottom end of the guide channel (31) extends through the air guide bend (43) into the inside of the air collector (42).

7. The nylon fiber multi-station spinning device according to claim 1, characterized in that: The hot air recirculation assembly (44) includes an air suction pipe (441), the end of which is connected to a hot air pump (442). The outlet of the hot air pump (442) is connected to an annular pipe (444) through a hot air duct (443). The inner wall of the annular pipe (444) is provided with uniformly distributed nozzles (445), which are located on the raw material tank (2).

8. The nylon fiber multi-station spinning device according to claim 7, characterized in that: The raw material tank (2) has a uniformly distributed raw material mesh (446) on its side near the top.

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