Spinneret plate assembly for soft-light special-shaped section polyester pre-oriented yarn

Abstract

The utility model relates to the technical field of special-shaped polyester pre-oriented yarn spinneret plates, in particular to a soft-light special-shaped cross section polyester pre-oriented yarn spinneret plate assembly which comprises a spinneret plate, a light guide plate and a light guide plate. The spinneret replacement mechanism is used for carrying out soft light special-shaped spinneret and is arranged on one side of the spinneret plate; wherein the spinneret replacing mechanism comprises a mounting plate arranged on one side of the spinneret plate, a spinneret assembly is arranged on one side of the mounting plate, and a replacing assembly is arranged on one side of the spinneret assembly; during use, the spinning assembly is used for conducting special-shaped section extrusion forming on high-viscosity polyester melt, meanwhile, a soft light disturbance structure is formed on the fiber surface, the light diffuse reflection effect is improved, the replacement assembly is used for rapidly replacing the spinning assembly when different section shapes need to be replaced, and the equipment adaptability and the maintenance efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of irregularly shaped polyester spinneret technology, and in particular to a soft-light irregularly shaped cross-section polyester pre-oriented spinneret assembly. Background Technology

[0002] Polyester pre-oriented yarn is an important intermediate product in the production of synthetic fibers. Its fiber cross-sectional shape and surface structure directly affect the optical texture and mechanical properties of the finished fabric.

[0003] As shown in the reference case "A polyester yarn irregular spinneret" announcement number "CN220485909U", the irregular structure guide hole design makes the polyester yarn have a three-dimensional glossy texture after being filamented, and improves its resistance to deformation, wrinkles and pilling.

[0004] Existing spinneret structures mostly adopt an integral processing method, with fixed nozzle shapes. It is difficult to flexibly change the nozzle structure with different cross-sectional shapes according to different spinning needs, resulting in inconvenient maintenance and poor adaptability.

[0005] Therefore, a soft-light irregular cross-section polyester pre-oriented yarn spinneret assembly is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a soft-light irregular cross-section polyester pre-oriented yarn spinneret assembly to solve the above problems. It improves the problems that spinneret structures mostly adopt an integral processing method, with fixed nozzle shapes, making it difficult to flexibly change different cross-sectional shapes of nozzle structures according to different spinning needs, resulting in inconvenient maintenance and poor adaptability.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a soft-light irregular cross-section polyester pre-oriented yarn spinneret assembly, comprising: a spinneret, the surface of which is provided with positioning holes; a spinneret replacement mechanism for performing soft-light irregular cross-section spinning, the spinneret replacement mechanism being disposed on one side of the spinneret; wherein, the spinneret replacement mechanism includes a mounting plate disposed on one side of the spinneret, a spinneret assembly disposed on one side of the mounting plate, and a replacement assembly disposed on one side of the spinneret assembly. In use, the spinneret assembly is used to extrude high-viscosity polyester melt into irregular cross-sections, while simultaneously forming a soft-light disturbance structure on the fiber surface to enhance the diffuse reflection effect of light. The replacement assembly is used to quickly replace the spinneret assembly when different cross-section shapes need to be changed, improving equipment adaptability and maintenance efficiency.

[0008] The preferred spinneret assembly includes multiple replacement blocks fixedly installed on one side of the mounting plate. The surfaces of the multiple replacement blocks are provided with multiple nozzles. The replacement blocks are slidably connected to the spinneret plate. The nozzle structure is integrated on the replaceable replacement blocks and slidably connected to the spinneret plate. This allows for the rapid replacement of nozzles by changing the corresponding replacement blocks under different cross-sectional shapes, specifications, or soft light effect requirements.

[0009] Preferably, a pre-forming chamber is fixedly installed inside the nozzle. A pressure limiting chamber is fixedly connected to one side of the pre-forming chamber, and a shaping chamber is provided on the other side of the pressure limiting chamber. The pre-forming chamber is located at the inlet end of the nozzle and is used to guide the high-viscosity polyester melt into the nozzle, eliminating local turbulence and deviation during the feeding process. The pressure limiting chamber is a transitional chamber structure with a relatively small cross-sectional size, used to limit the flow and stabilize the pressure of the melt, ensuring a balanced flow velocity before ejection. The shaping chamber is an irregularly shaped cross-section chamber with a specific non-circular cross-sectional shape at the outlet, used to perform final cross-sectional shaping of the melt.

[0010] Preferably, the surface of the shaping cavity is provided with irregularly shaped holes, which are set in a cross shape. Through the outward shaping of the cross-shaped irregularly shaped holes, multiple sharp corners can be formed at the fiber surface boundary, which enhances the fiber's ability to scatter light in multiple directions, thereby significantly improving the fabric's soft light performance.

[0011] Preferably, the edge of the irregular hole is provided with multiple serrated grooves. The serrated grooves penetrate the irregular hole and form a wavy or slightly uneven three-dimensional texture on the surface of the nascent filament during the spinning process, which enhances the fiber's ability to diffusely reflect incident light and further strengthens the soft light effect.

[0012] The preferred replacement assembly includes two screws fixedly mounted on one side of the mounting plate. The screws penetrate the spinneret plate, and the surface of the screws is threaded with connecting nuts. By loosening the connecting nuts, the spinneret assembly can be quickly assembled and disassembled relative to the spinneret plate.

[0013] The preferred replacement assembly further includes a connecting plate fixedly installed on one side of the spinneret. The screw passes through the connecting plate, and the connecting nut is located on the other side of the connecting plate and contacts the connecting plate. By tightening the connecting nut, the spinneret assembly can be firmly pressed onto the spinneret via the connecting plate. The connecting plate serves as an auxiliary limiting and positioning structure to prevent displacement and structural loosening.

[0014] The beneficial effects of this utility model are:

[0015] 1. During use, the spinneret assembly is used to extrude high-viscosity polyester melt into irregular cross-sections, while forming a soft light disturbance structure on the fiber surface to improve the light diffuse reflection effect. The replacement assembly is used to quickly replace the spinneret assembly when different cross-section shapes are required, improving equipment adaptability and maintenance efficiency.

[0016] 2. By loosening the connecting nut, the spinneret assembly can be quickly assembled and disassembled relative to the spinneret plate. By tightening the connecting nut, the spinneret assembly can be firmly pressed onto the spinneret plate by the connecting plate. The connecting plate serves as an auxiliary limiting and positioning structure to prevent displacement and structural loosening. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the spinneret replacement mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the spinneret assembly structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the replacement component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the connecting plate and screw structure of this utility model.

[0022] In the diagram: 1. Spinneret; 2. Positioning hole; 3. Spinneret replacement mechanism; 31. Mounting plate; 32. Spinneret assembly; 321. Replacement block; 322. Spinneret orifice; 323. Pre-conditioning chamber; 324. Pressure limiting chamber; 325. Shaping chamber; 326. Irregularly shaped hole; 327. Serrated groove; 33. Replacement assembly; 331. Screw; 332. Connecting plate; 333. Connecting nut. Detailed Implementation

[0023] 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.

[0024] In practical implementation: such as Figure 1-5As shown, a soft-light profiled polyester pre-oriented yarn spinneret assembly includes: a spinneret 1 with positioning holes 2 on its surface; a spinneret replacement mechanism 3 for soft-light profiled spinning, which is disposed on one side of the spinneret 1; wherein, the spinneret replacement mechanism 3 includes a mounting plate 31 disposed on one side of the spinneret 1, a spinneret assembly 32 disposed on one side of the mounting plate 31, and a replacement assembly 33 disposed on one side of the spinneret assembly 32. In use, the spinneret assembly 32 is used to extrude high-viscosity polyester melt into profiled sections, while forming a soft-light disturbance structure on the fiber surface to improve the diffuse reflection effect of light. The replacement assembly 33 is used to quickly replace the spinneret assembly 32 when different cross-sectional shapes need to be changed, thereby improving equipment adaptability and maintenance efficiency.

[0025] The spinneret 1 is usually made of high-temperature resistant alloy plate. Its body has a flat structure and an internal channel structure for melt introduction. The surface has standard positioning holes 2 for connecting to the spinning equipment. The basic components such as the spinneret assembly 32 and the replacement assembly 33 are set in the non-melting area on one side of the spinneret 1 through the mounting plate 31. The two are connected to the spinneret 1 through a sliding fit or snap-fit ​​structure. The assembly body does not interfere with the internal melt channel and the foundation pressure area of ​​the spinneret 1, so it will not affect the original structural strength and functional layout of the spinneret 1.

[0026] like Figure 2 , Figure 3 and Figure 4 As shown, the spinneret assembly 32 includes multiple replacement blocks 321 fixedly mounted on one side of the mounting plate 31. Multiple nozzles 322 are formed on the surface of each replacement block 321. The replacement blocks 321 are slidably connected to the spinneret 1. The nozzles 322 are structurally integrated into the replaceable replacement blocks 321 and slidably connected to the spinneret 1. This allows for rapid replacement of the nozzles 322 by changing the corresponding replacement blocks 321 to achieve different cross-sectional shapes, specifications, or soft-light effect requirements. A pre-conditioning chamber 323 is fixedly installed inside each nozzle 322. A pressure limiting chamber 324 is fixedly connected to one side of 23, and a shaping chamber 325 is provided on the other side of the pressure limiting chamber 324. The pre-shaping chamber 323 is provided at the inlet end of the nozzle 322 to guide the high-viscosity polyester melt into the nozzle 322 and eliminate local turbulence and deviation during the feeding process. The pressure limiting chamber 324 is a transition chamber structure with a relatively small cross-sectional size, which is used to limit the flow and stabilize the pressure of the melt to ensure a balanced flow velocity before spraying. The shaping chamber 325 is an irregular cross-section chamber with a specific non-circular cross-sectional shape at the outlet, which is used to perform final cross-sectional shaping of the melt.

[0027] The surface of the shaping cavity 325 is provided with irregularly shaped holes 326, which are set in a cross shape. Through the outward shaping of the cross-shaped irregularly shaped holes 326, multiple sharp corners can be formed at the boundary of the fiber surface, which enhances the fiber's ability to scatter light in multiple directions, thereby significantly improving the soft light performance of the fabric. Multiple serrated grooves 327 are provided on the edge of the irregularly shaped holes 326, which penetrate through the irregularly shaped holes 326. During the spinning process, the serrated grooves 327 form a wavy or slightly uneven three-dimensional texture on the surface of the nascent filament, which effectively increases the refractive density of the fiber surface, enhances the fiber's ability to diffusely reflect incident light, and further strengthens the soft light effect.

[0028] like Figure 2 and Figure 5 As shown, the replacement component 33 includes two screws 331 fixedly installed on one side of the mounting plate 31. The screws 331 penetrate the spinneret plate 1, and the surface of the screws 331 is threaded with connecting nuts 333. By loosening the connecting nuts 333, the spinneret component 32 can be quickly disassembled and assembled relative to the spinneret plate 1, thereby completing the overall replacement of the replacement block 321 and the internal nozzle 322. The replacement component 33 also includes a connecting plate 332 fixedly installed on one side of the spinneret plate 1. The screws 331 penetrate the connecting plate 332, and the connecting nuts 333 are located on the other side of the connecting plate 332 and are in contact with the connecting plate 332. By tightening the connecting nuts 333, the spinneret component 32 can be firmly pressed onto the spinneret plate 1 by the connecting plate 332. The connecting plate 332 serves as an auxiliary limiting and positioning structure to prevent displacement and structural loosening.

[0029] In use, the pre-forming chamber 323 is located at the inlet end of the nozzle 322 to guide the high-viscosity polyester melt into the nozzle 322, eliminating local turbulence and deviation during the feeding process. The pressure-limiting chamber 324 is a transitional chamber structure with a relatively small cross-sectional size, used to limit the flow and stabilize the pressure of the melt, ensuring a uniform flow velocity before ejection. The shaping chamber 325 is an irregularly shaped cross-section chamber with a specific non-circular cross-sectional shape at the outlet, used for final cross-sectional shaping of the melt. Through the outgoing shaping via the cross-shaped irregularly shaped hole 326, the fiber surface boundary can be shaped. The serrated grooves 327 form a wavy or slightly uneven three-dimensional texture on the surface of the nascent filament during the spinning process, which effectively increases the refractive density of the fiber surface and enhances the fiber's ability to diffusely reflect incident light, further strengthening the soft light effect. By tightening the connecting nut 333, the spinning assembly 32 can be firmly pressed onto the spinning plate 1 through the connecting plate 332. The connecting plate 332 serves as an auxiliary limiting and positioning structure to prevent displacement and structural loosening.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A soft profiled cross-section polyester pre-oriented yarn spinneret assembly characterized in that, Include: Spinneret (1), the surface of the spinneret (1) is provided with positioning hole (2); The spinneret replacement mechanism (3) is used for carrying out soft light special-shaped spinning, and the spinneret replacement mechanism (3) is arranged on one side of the spinneret plate (1); Wherein, the spinneret replacement mechanism (3) includes a mounting plate (31) arranged on one side of the spinneret plate (1), one side of the mounting plate (31) is provided with a spinning assembly (32), one side of the spinning assembly (32) is provided with a replacement assembly (33).

2. A soft profiled cross-section polyester pre-oriented yarn spinneret assembly as claimed in claim 1, wherein: The spinning assembly (32) includes a plurality of replacement blocks (321) fixedly installed on one side of the mounting plate (31), a plurality of replacement blocks (321) are provided with a plurality of jet holes (322) on the surface, and the replacement blocks (321) are in sliding connection with the spinneret plate (1).

3. A soft profiled cross-section polyester pre-oriented yarn spinneret assembly as claimed in claim 2, wherein: The inside of the jet hole (322) is fixedly installed with a pre-cavity (323), one side of the pre-cavity (323) is fixedly connected with a pressure limiting cavity (324), and the other side of the pressure limiting cavity (324) is provided with a shaping cavity (325).

4. A soft profiled cross-section polyester pre-oriented yarn spinneret assembly as claimed in claim 3, wherein: The surface of the shaping cavity (325) is provided with a special-shaped hole (326), and the special-shaped hole (326) is arranged in a cross shape.

5. A soft profiled cross-section polyester pre-oriented yarn spinneret assembly as claimed in claim 4, wherein: The edge of the special-shaped hole (326) is provided with a plurality of sawtooth grooves (327), and the sawtooth grooves (327) penetrate the special-shaped hole (326).

6. A soft light shaped cross-section polyester pre-oriented yarn spinneret plate assembly as claimed in claim 1, wherein: The replacement assembly (33) includes two screw rods (331) fixedly installed on one side of the mounting plate (31), the screw rods (331) penetrate the spinneret plate (1), and the surface of the screw rods (331) is threadedly installed with a connecting nut (333).

7. A soft profiled cross-section polyester pre-oriented yarn spinneret assembly as claimed in claim 6, wherein: The replacement assembly (33) further includes a connecting plate (332) fixedly installed on one side of the spinneret plate (1), the screw rod (331) penetrates the connecting plate (332), the connecting nut (333) is located on the other side of the connecting plate (332), and the connecting nut (333) is in contact with the connecting plate (332).

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