Multi-specification spinning structure of differential polyester filament yarn

Abstract

The utility model discloses a multi-specification spinning structure of differentiated polyester filament yarn, and relates to the technical field of chemical fiber spinning equipment, the multi-specification spinning structure of differentiated polyester filament yarn comprises an outer shell, the outer shell is provided with a replacing mechanism used for flexible switching of a spinneret plate assembly, the replacing mechanism comprises a switching assembly, the switching assembly comprises a rotating disc rotationally installed in the middle of the outer shell, and the rotating disc is provided with a rotating shaft; a plurality of mounting rings distributed in an annular array are arranged on the outer side of the rotating disc, spinneret plate assemblies are detachably mounted in the middles of the mounting rings, the rotating disc is fixedly mounted in the middle of the bottom end of the rotating disc, and a driving disc is arranged on one side of the rotating disc. And at the moment, the limiting blocks are clamped into the limiting grooves, it is guaranteed that the spinneret plate assembly is in accurate butt joint with an outlet of a spinning manifold, the time for shutdown replacement is greatly shortened, and the production requirements of multi-specification polyester filaments from fine denier to coarse denier are met.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical fiber spinning equipment, specifically to a multi-specification spinning structure for differentiated polyester filaments. Background Technology

[0002] With the increasing demand for high-performance and multifunctional fiber materials in the textile industry, differentiated polyester filaments, with their unique morphology and functionality (such as irregular cross-sections, fine denier, and special surface properties), have been widely used in high-end apparel fabrics, industrial textiles, and medical materials. This has led to an increasing demand in the market for the diversity of specifications of differentiated polyester filaments.

[0003] Reference patent document: Patent Publication No. CN222744449U, Patent Publication Date 2025-04-11, discloses a polyester filament spinning device, including a yarn chamber, a pressure chamber fixedly connected to the top of the yarn chamber, a press fixedly connected inside the pressure chamber, a pressure plate fixedly connected to the bottom of the press, a circular groove opened on the top of the yarn chamber, a filter plate fixedly connected inside the circular groove, a plurality of holes opened inside the filter plate, a plurality of vertical grooves opened inside the yarn chamber, and a limit block slidably connected inside the vertical groove. By rotating the handle, the transmission rod is driven to rotate, and the transmission rod moves up and down inside the vertical groove. Pushing the handle pushes the locking block into the locking slot, and the transmission rod will be unable to rotate, thus being fixed inside the vertical groove, so as to realize the up and down adjustment and fixation of the transmission rod, thereby adjusting the height of the heating guide wheel, thereby adapting to the stretching requirements of different polyester yarns.

[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found:

[0005] Currently, most polyester filament spinning equipment uses a single-specification spinneret or a fixed combination of spinnerets. This means that when different specifications of yarn need to be produced, most equipment requires manual disassembly and replacement of the spinnerets. Each replacement process involves steps such as stopping the machine to cool down, removing bolts, cleaning the mounting surface, and installing the new spinneret, which takes an average of 3-5 hours. This low replacement efficiency leads to a reduction in the effective production time of the equipment.

[0006] Therefore, this utility model provides a multi-specification spinning structure for differentiated polyester filaments. Utility Model Content

[0007] To address the current problem that most polyester filament spinning equipment uses a single-specification spinneret or a fixed combination of spinnerets, which means that when different specifications of yarn need to be produced, most equipment requires manual disassembly and replacement of the spinnerets, resulting in low replacement efficiency and a shortened effective production time; the purpose of this utility model is to provide a multi-specification spinning structure for differentiated polyester filaments.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a multi-specification spinning structure for differentiated polyester filaments, comprising an outer shell, wherein the outer shell is provided with a replacement mechanism for flexibly switching the spinneret assembly, the replacement mechanism comprising:

[0009] The switching component includes a rotating disk rotatably mounted in the middle of the outer casing. Multiple mounting rings are arranged in a circular array on the outer side of the rotating disk. A spinneret assembly is detachably mounted in the middle of each of the mounting rings. A rotating disk is fixedly mounted in the middle of the bottom of the rotating disk. A drive disk is provided on one side of the rotating disk. A drive block is fixedly mounted on one side of the drive disk. Multiple drive grooves that cooperate with the drive block are opened in the middle of the rotating disk. A limit block is fixedly mounted in the middle of the drive disk. Multiple limit grooves that cooperate with the limit block are opened on the outer side of the rotating disk. A drive assembly is provided at the bottom of the drive disk.

[0010] The mounting components, located on the outside of the rotating disk, are used to install and secure the mounting ring.

[0011] Preferably, the mounting assembly includes bolts that slide through both sides of the mounting ring, and the outer side of the rotating disk has multiple annularly distributed threaded grooves, with one end of each bolt threaded into the inside of the threaded groove.

[0012] Preferably, the drive assembly includes a protective cover fixedly installed at the bottom of the housing, a servo motor fixedly installed on one side of the top of the protective cover, and a drive disk fixedly installed at the drive end of the servo motor.

[0013] Preferably, the outer side of the rotating disk is provided with multiple mounting grooves arranged in a ring array, and multiple mounting rings are slidably engaged in the middle of the mounting grooves.

[0014] Preferably, high-temperature memory alloy bushings are fixedly installed at the bottom and top of the plurality of mounting rings, and one side of each of the plurality of high-temperature memory alloy bushings is in contact with the inner wall of the outer shell.

[0015] Preferably, a flange is fixedly installed on one side of the top of the outer casing, and a disassembly port is provided on one side of the outer casing.

[0016] Beneficial effects

[0017] This invention provides a multi-specification spinning structure for differentiated polyester filaments. Compared with the prior art, it has the following advantages:

[0018] 1. This application uses a servo motor to drive the drive disk to rotate. Through the cooperation of the drive block and the drive groove, the rotating disk is precisely rotated to the next station. At this time, the limit block is engaged in the limit groove to ensure that the spinneret assembly and the spinning box outlet are accurately connected, which greatly reduces the downtime for replacement and meets the production needs of multi-specification polyester filament from fine denier to coarse denier.

[0019] 2. This application installs the spinneret assembly in the middle of the mounting ring and fixes the mounting ring with bolts and threaded grooves. This facilitates the subsequent installation and disassembly of the spinneret assembly through the disassembly port, allows for cleaning of the spinneret assembly after use, avoids clogging of the spinneret assembly orifices, and enables cleaning of other spinneret assemblies without stopping the machine, further accelerating production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0022] Figure 3 This is another cross-sectional structural diagram of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure after the mounting ring and rotating disk are separated in this utility model.

[0024] Figure 5 This is a schematic diagram of the drive disk structure of this utility model.

[0025] In the diagram: 1. Outer shell; 11. Flange; 12. Disassembly port; 2. Replacement mechanism; 21. Switching assembly; 211. Rotating disk; 212. Mounting slot; 213. Mounting ring; 2131. Spinneret assembly; 2132. High-temperature memory alloy bushing; 214. Protective cover; 215. Servo motor; 216. Drive disk; 217. Rotating disk; 218. Drive block; 2181. Drive slot; 219. Limit block; 2191. Limit slot; 22. Mounting assembly; 221. Bolt; 222. Threaded groove. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a multi-specification spinning structure for differentiated polyester filaments, including an outer shell 1, the outer shell 1 being provided with a replacement mechanism 2 for flexibly switching the spinneret assembly 2131, the replacement mechanism 2 including:

[0028] The switching assembly 21 includes a rotating disk 211 rotatably mounted in the middle of the outer casing 1. Multiple mounting rings 213 arranged in a ring array are provided on the outer side of the rotating disk 211. A spinneret assembly 2131 is detachably mounted in the middle of each of the mounting rings 213. The spinneret assembly 2131 includes a top cover plate: sealed to the spinning box and bearing the melt pressure; a filter layer: a sintered metal mesh (80-100μm pore size) to filter melt impurities; a distribution plate: with guide grooves to ensure uniform melt distribution to the spinneret; and a spinneret body: with hundreds to thousands of micropores to determine fiber specifications and provide sealing. Gasket: Graphite / metal composite material to prevent leakage of high-temperature molten metal. A rotating disk 217 is fixedly installed at the bottom center of the rotating disk 211. A drive disk 216 is provided on one side of the rotating disk 217. A drive block 218 is fixedly installed on one side of the drive disk 216. A plurality of drive grooves 2181 that cooperate with the drive block 218 are opened in the middle of the rotating disk 217. A limit block 219 is fixedly installed in the middle of the drive disk 216. A plurality of limit grooves 2191 that cooperate with the limit block 219 are opened on the outer side of the rotating disk 217. A drive assembly is provided at the bottom of the drive disk 216.

[0029] Mounting component 22 is located on the outside of rotating disk 211 and is used to install and fix mounting ring 213.

[0030] Mounting assembly 22 includes bolts 221 that slide through both sides of mounting ring 213. The outer side of rotating disk 211 has multiple annularly distributed threaded grooves 222. One end of each bolt 221 is threaded into the inside of the threaded grooves 222. The small hole in mounting ring 213 for bolts 221 to pass through has a "T" shaped cross section, which facilitates fixing mounting ring 213 with bolts 221. The bolts 221 are high-temperature anti-loosening bolts, and spring washers are used to prevent vibration from loosening them.

[0031] The drive assembly includes a protective cover 214 fixedly installed at the bottom of the outer casing 1. A servo motor 215 is fixedly installed on one side of the top of the protective cover 214. A drive disk 216 is fixedly installed on the drive end of the servo motor 215. By setting the protective cover 214, the servo motor 215, drive disk 216, and rotating disk 217 at the bottom of the outer casing 1 can be protected. The servo motor 215 is a Panasonic A6 series 100-watt servo motor. The insulation class of the internal coil of this series of motors is F, and the maximum temperature that can be withstood is 155 degrees Celsius, which is suitable for normal operation in this spinning environment.

[0032] The outer side of the rotating disk 211 is provided with multiple mounting grooves 212 arranged in a ring array. Multiple mounting rings 213 are slidably locked in the middle of the mounting grooves 212. The arc surface of the mounting grooves 212 corresponds to the arc surface of the mounting rings 213, thereby ensuring the stable installation of the mounting rings 213.

[0033] High-temperature memory alloy bushings 2132 are fixedly installed at the bottom and top of multiple mounting rings 213. One side of each of the multiple high-temperature memory alloy bushings 2132 is in contact with the inner wall of the outer shell 1. The high-temperature memory alloy bushings 2132 are loose at room temperature for easy installation, and expand and compress the cover after heating.

[0034] A flange 11 is fixedly installed on one side of the top of the outer shell 1. A disassembly port 12 is provided on one side of the outer shell 1. The operator can connect it to the bottom outlet of the spinning box through the flange 11. The disassembly port 12 is used to facilitate the installation and disassembly of the mounting ring 213, so that the spinneret assembly 2131 can be removed after use, cleaned and reinstalled, thereby avoiding downtime for cleaning and speeding up production efficiency.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] During operation, the outer shell 1 is bolted to the bottom of the spinning box. The flange 11 on one side of the outer shell 1 is connected to the bottom outlet of the spinning box, thus completing the installation. The molten material inside the box is uniformly extruded from the spinneret assembly 2131 and ejected through the lower part of the outer shell 1. When different filament thicknesses need to be ejected, the servo motor 215 drives the drive disk 216 to rotate, which in turn drives the drive block 218 and the limiting block 219 to rotate. When the drive block 218 enters the drive groove 2181, the notched side of the limiting block 219 faces the limiting groove 2191, allowing the drive block 218 to drive the rotating disk 217 to rotate, which in turn drives the rotating disk 211 to rotate. When the drive block 218 moves away from the drive groove 2181... The limiting block 219 is locked inside the limiting groove 2191, thereby preventing the rotating disk 217 from rotating. Whenever the driving block 218 drives the rotating disk 217 to rotate to one side, the spinneret assembly 2131 rotates once, so that the spinneret assembly 2131 with different orifice diameters is located at the lower part of the flange 11. Thus, by flexibly switching the spinneret assembly 2131, different specifications of polyester yarn can be produced. When installing the spinneret assembly 2131, the spinneret assembly 2131 is fixed in the middle of the mounting ring 213. After the mounting ring 213 is locked in the middle of the mounting groove 212, the bolt 221 is passed through the mounting ring 213, and one side of the bolt 221 is threaded into the thread groove 222, thus completing the installation and fixing of the spinneret assembly 2131.

[0037] 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.

[0038] 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-specification spinning structure for differentiated polyester filaments, comprising an outer shell (1), characterized in that: The outer casing (1) is provided with a replacement mechanism (2) for flexibly switching the spinneret assembly (2131). The replacement mechanism (2) includes: The switching component (21) includes a rotating disk (211) rotatably installed in the middle of the outer shell (1). Multiple mounting rings (213) are arranged in a ring array on the outer side of the rotating disk (211). A spinneret assembly (2131) is detachably installed in the middle of the multiple mounting rings (213). A rotating disk (217) is fixedly installed in the middle of the bottom end of the rotating disk (211). A drive disk (216) is provided on one side of the rotating disk (217). A drive block (218) is fixedly installed on one side of the drive disk (216). Multiple drive grooves (2181) that cooperate with the drive block (218) are opened in the middle of the rotating disk (217). A limit block (219) is fixedly installed in the middle of the drive disk (216). Multiple limit grooves (2191) that cooperate with the limit block (219) are opened on the outer side of the rotating disk (217). A drive assembly is provided at the bottom end of the drive disk (216). The mounting component (22) is located on the outside of the rotating disk (211) and is used to install and fix the mounting ring (213).

2. The multi-specification spinning structure of differentiated polyester filament according to claim 1, characterized in that: The mounting assembly (22) includes bolts (221) that slide through both sides of the mounting ring (213). The outer side of the rotating disk (211) is provided with multiple annularly distributed threaded grooves (222), and one end of each bolt (221) is threaded into the inside of the threaded groove (222).

3. The multi-specification spinning structure of differentiated polyester filament according to claim 1, characterized in that: The drive assembly includes a protective cover (214) fixedly installed at the bottom of the outer shell (1), a servo motor (215) fixedly installed on one side of the top of the protective cover (214), and a drive disk (216) fixedly installed at the drive end of the servo motor (215).

4. The multi-specification spinning structure of differentiated polyester filament according to claim 1, characterized in that: The outer side of the rotating disk (211) is provided with multiple mounting slots (212) arranged in a ring array, and multiple mounting rings (213) are slidably locked in the middle of the mounting slots (212).

5. The multi-specification spinning structure of differentiated polyester filament according to claim 1, characterized in that: High-temperature memory alloy bushings (2132) are fixedly installed at the bottom and top of the multiple mounting rings (213), and one side of each of the multiple high-temperature memory alloy bushings (2132) is in contact with the inner wall of the outer shell (1).

6. The multi-specification spinning structure of differentiated polyester filament according to claim 1, characterized in that: A flange (11) is fixedly installed on one side of the top of the outer shell (1), and a disassembly port (12) is provided on one side of the outer shell (1).

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