Spinning nozzle for flash spinning equipment

Abstract

The utility model discloses a spinning nozzle for flash spinning equipment, which relates to the technical field of spinning nozzles and comprises a nozzle body communicated with a feed pipe. An adjusting assembly is arranged in the feeding pipe and comprises an annular groove and an air bag, the annular groove is formed in the inner wall of the feeding pipe, and the air bag is fixedly connected to the interior of the annular groove; a flow guide plate is fixedly connected to the end, close to the spray head body, of the feeding pipe, a flow guide hole is formed in the flow guide plate and is in a circular truncated cone shape, the inner diameter of the end, close to the spray head body, of the flow guide hole is small, and the spray head body and the feeding pipe are concentrically arranged. According to the spinning nozzle for the flash spinning equipment, the adjusting assembly and other structures are arranged, the expansion degree of the air bag is controlled to adjust the opening and closing degree for use, it is avoided that liquid passes too much or too little at a time, and when the air bag is expanded to be large enough and the interior of the feeding pipe is cut off, the effect of stopping feeding is achieved.

Description

Technical Field

[0001] This utility model relates to the field of spinning nozzle technology, and in particular to a spinning nozzle for flash spinning equipment. Background Technology

[0002] The spinning nozzle is a key component in a spinning machine for spinning hollow fibers. Spinning hollow fibers generally uses an insert tube type spinning nozzle. Its working principle is that the spinning core liquid flows out of the insert tube to form the inner cavity of the hollow fiber, and the spinning raw liquid is sprayed out in the annular gap between the outer wall of the insert tube and the spinning hole to form the wall of the hollow fiber. Therefore, the concentricity of the insert tube and the spinning hole directly affects the uniformity of the wall thickness of the spun hollow fiber, that is, the quality of the hollow fiber.

[0003] Traditional spinning nozzles, due to their open feed pipe structure, can cause excessive or insufficient liquid discharge at one time, affecting equipment operation and making it inconvenient to adjust the discharge according to the required discharge volume, thus reducing the flexibility and stability of the equipment.

[0004] For example, the patent entitled "Spinning Nozzle for Flash Spinning Equipment" (patent application number: CN202321195665.3) discloses a spinning nozzle for flash spinning equipment. This nozzle is equipped with a nozzle body, discharge pipe, nozzle head, feed pipe, first sealing sleeve, rotating rod, support plate, knob, damper, arc-shaped clamping block, and return spring. This device allows the rotating rod to rotate the sealing cover by turning the knob, thus facilitating adjustment of the opening and closing size according to the required flow, preventing too much or too little liquid from passing through at once. However, in actual use, the restriction on the rotating knob needs to be lifted before adjustment, making the operation cumbersome and the efficiency needing improvement.

[0005] Therefore, it is necessary to propose a spinning nozzle for flash spinning equipment to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a spinning nozzle for flash spinning equipment, so as to solve the problem that the spinning nozzle requires the restriction of the rotating knob to be released before adjustment in actual use, which is cumbersome and the efficiency of use needs to be improved.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a spinning nozzle for a flash spinning equipment, comprising a nozzle body connected to a feed pipe;

[0008] An adjustment assembly is provided inside the feed pipe. The adjustment assembly includes an annular groove and an air bladder. The annular groove is formed on the inner wall of the feed pipe, and the air bladder is fixedly connected inside the annular groove.

[0009] A guide plate is fixedly connected to one end of the feed pipe near the nozzle body. The guide plate has a guide hole, which is frustum-shaped and has a smaller inner diameter at the end near the nozzle body.

[0010] Preferably, the nozzle body and the feed pipe are arranged concentrically.

[0011] Preferably, multiple flow guide holes are provided.

[0012] Preferably, the feed pipe is provided with a conveying assembly that cooperates with the airbag. The conveying assembly includes an air pipe, a solenoid valve and a circular hole. The circular hole is opened on the side wall of the feed pipe. The air pipe is fixedly connected to the inside of the circular hole and communicates with the airbag. The solenoid valve is fixedly installed on the air pipe.

[0013] Preferably, the end of the trachea furthest from the airbag is connected to the factory's gas pipeline.

[0014] Preferably, a discharge assembly is provided at the end of the nozzle body away from the feed pipe. The discharge assembly includes a discharge pipe and a nozzle head. The discharge pipe is connected to the nozzle body, and the nozzle head is connected to the end of the discharge pipe away from the nozzle body.

[0015] Preferably, the discharge assembly is provided in multiple sets.

[0016] Preferably, a mounting plate is fixedly connected to the end of the feed pipe away from the nozzle body. The mounting plate has through holes that communicate with the feed pipe, and mounting holes are provided at all four corners of the mounting plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model uses an adjustable component and other structures to control the expansion of the airbag and adjust the opening and closing size, so as to avoid too much or too little liquid passing through at one time. When the airbag expands to a large enough size and cuts off the inside of the feed tube, the feeding is stopped.

[0019] 2. Set up guide plates and guide holes to prevent local turbulence when the spinning solution enters the nozzle body from the feed pipe, and at the same time ensure that the spinning solution enters the interior of the nozzle body evenly.

[0020] 3. The inner diameter of the guide hole is small at the end closest to the nozzle body. When the spinning solution passes through the guide hole, turbulence is reduced, the risk of clogging is lowered, and the stability of the spinning process is enhanced. At the same time, the design of the inner diameter of the guide hole at the end closest to the nozzle body will cause the spinning solution to experience gradually increasing shear force during the flow process, so that the molecular chains in the spinning solution are more evenly distributed and local defects are reduced. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0022] Figure 1 This is a schematic diagram of the spinning nozzle for the flash spinning equipment of this utility model from one perspective.

[0023] Figure 2 This is a schematic diagram of the spinning nozzle for the flash spinning equipment of this utility model from another perspective.

[0024] Figure 3 This is a schematic diagram of the annular groove and airbag structure of this utility model.

[0025] Figure 4 This is a schematic diagram of the flow guide plate and flow guide hole structure of this utility model.

[0026] In the diagram: 1. Nozzle body; 2. Feed pipe; 3. Mounting plate; 4. Mounting hole; 5. Through hole; 6. Annular groove; 7. Airbag; 8. Air pipe; 9. Solenoid valve; 10. Round hole; 11. Guide plate; 12. Guide hole; 13. Discharge pipe; 14. Nozzle head. Detailed Implementation

[0027] 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.

[0028] This utility model provides, for example Figures 1-4 The spinning nozzle shown includes a nozzle body 1 connected to a feed pipe 2. The nozzle body 1 and the feed pipe 2 are concentrically arranged. A mounting plate 3 is fixedly connected to the end of the feed pipe 2 away from the nozzle body 1. The mounting plate 3 has through holes 5 corresponding to and communicating with the feed pipe 2. Mounting holes 4 are provided at the four corners of the mounting plate 3. When the spare spinning nozzle is needed, bolts or the like are used to pass through the mounting holes 4 to connect the mounting plate 3 to the conveying pipe of the spinning solution, thereby connecting the conveying pipe, the through holes 5, and the feed pipe 2.

[0029] A discharge assembly is provided at the end of the nozzle body 1 away from the feed pipe 2. Multiple discharge assemblies are provided, each including a discharge pipe 13 and a nozzle head 14. The discharge pipe 13 is connected to the nozzle body 1, and the nozzle head 14 is connected to the end of the discharge pipe 13 away from the nozzle body 1. The spinning solution enters the nozzle body 1 and is ejected through the discharge pipe 13 and nozzle head 14 to perform the spinning process.

[0030] An adjustment assembly is provided inside the feed pipe 2. The adjustment assembly includes an annular groove 6 and an air bladder 7. The annular groove 6 is formed on the inner wall of the feed pipe 2, and the air bladder 7 is fixedly connected inside the annular groove 6.

[0031] When the airbag 7 is inflated, causing it to expand, the inner diameter of the feed pipe 2 decreases. Conversely, when the airbag 7 is evacuated, causing it to contract, the inner diameter of the feed pipe 2 increases. This control over the expansion of the airbag 7 regulates the opening and closing of the pipe, preventing excessive or insufficient liquid from passing through at once. Furthermore, when the airbag 7 expands sufficiently and cuts off the feed pipe 2, the feeding process stops.

[0032] The feed pipe 2 is equipped with a conveying assembly that works with the airbag 7. The conveying assembly includes an air pipe 8, a solenoid valve 9, and a round hole 10. The round hole 10 is opened on the side wall of the feed pipe 2. The air pipe 8 is fixedly connected inside the round hole 10. The air pipe 8 is connected to the airbag 7. The solenoid valve 9 is fixedly installed on the air pipe 8. The end of the air pipe 8 away from the airbag 7 is connected to the gas pipeline of the factory.

[0033] When it is necessary to control the airbag 7 to inflate, open the solenoid valve 9 and inflate the airbag 7 through the air tube 8. After inflation, close the solenoid valve 9 to keep the airbag 7 in an inflated state. When it is necessary to control the airbag 7 to shrink, open the solenoid valve 9 and suction the airbag 7 through the air tube 8. After suction, close the solenoid valve 9 to keep the airbag 7 in a shrinked state.

[0034] In actual use, pressure sensors and other structures can be installed inside the airbag 7 to monitor the pressure inside the airbag 7, thereby controlling the degree of inflation of the airbag 7. The pressure sensors and their working principles are common existing technologies, and will not be elaborated here.

[0035] A guide plate 11 is fixedly connected to one end of the feed pipe 2 near the nozzle body 1. A guide hole 12 is provided on the guide plate 11. There are multiple guide holes 12. The guide holes 12 are frustum-shaped and have a smaller inner diameter at the end of the guide hole 12 near the nozzle body 1.

[0036] The guide plate 11 and guide hole 12 are provided to prevent local turbulence when the spinning solution enters the nozzle body 1 from the feed pipe 2, and at the same time, to ensure that the spinning solution enters the interior of the nozzle body 1 evenly. The inner diameter of the guide hole 12 near the nozzle body 1 is small. When the spinning solution passes through the guide hole 12, turbulence is reduced, the risk of clogging is reduced, and the stability of the spinning process is enhanced. At the same time, the design of the inner diameter of the guide hole 12 near the nozzle body 1 causes the spinning solution to experience gradually increasing shear force during the flow process, so that the molecular chains in the spinning solution are more evenly distributed and local defects are reduced.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spinning nozzle for a flash spinning device, characterized in that: Includes a nozzle body (1) connected to a feed pipe (2); An adjustment assembly is provided inside the feed pipe (2). The adjustment assembly includes an annular groove (6) and an air bag (7). The annular groove (6) is formed on the inner wall of the feed pipe (2), and the air bag (7) is fixedly connected inside the annular groove (6). The feed pipe (2) is fixedly connected to a guide plate (11) at one end near the nozzle body (1). The guide plate (11) has a guide hole (12) which is frustum-shaped and has a smaller inner diameter at the end near the nozzle body (1).

2. The spinning nozzle for the flash spinning equipment according to claim 1, characterized in that: The nozzle body (1) and the feed pipe (2) are arranged at the same center.

3. The spinning nozzle for the flash spinning equipment according to claim 1, characterized in that: The flow guide hole (12) is provided in multiple ways.

4. The spinning nozzle for a flash spinning equipment according to claim 1, characterized in that: The feed pipe (2) is provided with a conveying assembly that cooperates with the airbag (7). The conveying assembly includes an air pipe (8), a solenoid valve (9), and a round hole (10). The round hole (10) is opened on the side wall of the feed pipe (2). The air pipe (8) is fixedly connected to the inside of the round hole (10). The air pipe (8) communicates with the airbag (7). The solenoid valve (9) is fixedly installed on the air pipe (8).

5. The spinning nozzle for a flash spinning equipment according to claim 4, characterized in that: The end of the trachea (8) away from the airbag (7) is connected to the gas pipeline of the factory.

6. The spinning nozzle for a flash spinning equipment according to claim 1, characterized in that: The nozzle body (1) is provided with a discharge assembly at one end away from the feed pipe (2). The discharge assembly includes a discharge pipe (13) and a nozzle head (14). The discharge pipe (13) is connected to the nozzle body (1), and the nozzle head (14) is connected to the end of the discharge pipe (13) away from the nozzle body (1).

7. The spinning nozzle for a flash spinning equipment according to claim 6, characterized in that: The discharge assembly is provided in multiple sets.

8. The spinning nozzle for a flash spinning equipment according to claim 1, characterized in that: The feed pipe (2) is fixedly connected to a mounting plate (3) at one end away from the nozzle body (1). The mounting plate (3) has a through hole (5) that communicates with the feed pipe (2). Mounting holes (4) are provided at the four corners of the mounting plate (3).

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