Polyester spinning soaking device

By designing a polyester spinneret heat homogenization device, the capillary liquid absorbing core and working liquid are used to transfer heat, combined with stirring and diverting components, the uniformity of the heat output of the polyester spinneret is achieved, the problem of hardening and agglomeration of polyester raw materials is solved, and the processing quality of polyester fibers is improved.

CN222771014UActive Publication Date: 2025-04-18ZHUJI JIASHAO TEXTILE CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202420624921.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-28
Publication Date
2025-04-18
Estimated Expiration
2034-03-28

AI Technical Summary

Technical Problem

The heat output of existing polyester spinnerets is uneven, causing some raw materials to harden and agglomerate, affecting the processing quality of polyester fibers.

Method used

A polyester spinneret heat homogenization device is designed, including a heating cylinder, a heating assembly, a stirring assembly, a diversion assembly, a cutting rack and a spray rack. The heat homogenization assembly transfers heat through the circulation of the capillary liquid absorbent core and working fluid to ensure uniform temperature in the heating cylinder; the agitating assembly makes the polyester heat more uniformly through the agitating device; the splitting assembly is secondary heated through the heating pipe to ensure uniform heat output.

Benefits of technology

By uniformly outputting heat, the hardening and agglomeration of polyester raw materials is avoided and the processing quality of polyester fibers is improved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222771014U_ABST
    Figure CN222771014U_ABST
Patent Text Reader

Abstract

The utility model discloses a polyester spinning soaking device, which belongs to the field of polyester production, and is characterized by comprising a heating cylinder, a soaking assembly and a stirring assembly, the shunting assembly and the blanking frame are mounted on the shunting assembly; a discharge rack; wherein the soaking assembly comprises a soaking cylinder, a soaking pipe, a heating coil, a capillary wick and a working solution, the soaking cylinder is installed on the heating cylinder, the heating coil is installed on the heating cylinder, the soaking pipe is installed on the soaking cylinder, the capillary wick is installed in the soaking pipe, the working solution is arranged in the soaking pipe, and the capillary wick is installed in the working solution. According to the spinning device, heat in the spinning device can be uniformly output to raw materials, so that the raw materials cannot be hardened and agglomerated, and the processing quality of polyester fibers is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application belongs to the field of polyester production, and in particular to a polyester spinning and heating device. Background Art

[0002] Polyester fiber, commonly known as "polyester", is a synthetic fiber obtained by spinning polyester formed by the polycondensation of organic dibasic acid and diol. It belongs to a polymer compound and is currently the largest variety of synthetic fibers. The biggest advantage of polyester fiber is its excellent wrinkle resistance and shape retention, high strength and elastic recovery ability. It is durable, wrinkle-resistant, iron-free, and non-sticky. Polyester fiber has a series of excellent properties, such as high breaking strength and elastic modulus, moderate resilience, excellent heat setting effect, good heat resistance and light resistance, stable shape under a wide range of end-use conditions, and the fabric is washable and wearable. In addition, it also has excellent impedance. And good corrosion resistance, stable to weak acid, alkali, etc., so it has a wide range of clothing and industrial uses. The rapid development of the petroleum industry has also provided more abundant and cheap raw materials for the production of polyester fibers. In addition, the development of chemical, mechanical, electronic automatic control technology and other technologies in recent years has made its raw material production, fiber forming and processing processes gradually shortened, continuous, automated and high-speed. Polyester fiber has become the fastest-growing and highest-yielding synthetic fiber variety. Polyester fiber has the advantages of high modulus, high strength, high elasticity, good shape retention and heat resistance, and has become the most widely used and most consumed fiber variety.

[0003] The existing publication number is CN112695387B, which discloses a composite spinneret, including a sand body, four sand cavities are arranged at the top of the sand body, and a plurality of sand holes are longitudinally penetrated at the bottom ends of the four sand cavities. A fixed cylinder is sleeved on the bottom side of the outside of the sand body, and a first distribution plate, a second distribution plate, a third distribution plate and a spinneret circular plate are arranged in sequence from top to bottom inside the fixed cylinder. The top of the first distribution plate contacts the bottom end of the sand body, and a first guide groove is arranged at the top of the first distribution plate corresponding to the four sand cavities, and the bottom end of each first guide groove is provided with a first guide hole longitudinally penetrated, and a second guide groove is arranged at the top of the second distribution plate corresponding to the four first guide holes.

[0004] Although the above spinneret can produce a variety of filaments at the same time, improve production efficiency and improve the quality of filament production, the uneven heat output of the spinneret will cause part of the raw materials to harden and agglomerate, affecting the processing quality of polyester fibers. Utility Model Content

[0005] The purpose of this application is to provide a polyester spinneret heat equalizing device to address the above-mentioned technical problems, which can evenly output the heat in the spinneret to the raw material so that the raw material will not harden and agglomerate, thereby improving the processing quality of polyester fibers.

[0006] The present application provides a polyester spinning heat equalizing device, including a heating cylinder, characterized in that it also includes:

[0007] A heat-saturating component, wherein the heat-saturating component is mounted on the heating cylinder;

[0008] A stirring assembly, wherein the stirring assembly is installed in the heat-saturating assembly;

[0009] A flow distribution component, wherein the flow distribution component is installed on the heat distribution component;

[0010] A material unloading rack, the material unloading rack being mounted on the diversion assembly;

[0011] A spraying frame, wherein the spraying frame is installed on the unloading frame;

[0012] Among them, the heat equalizing component includes a heat equalizing cylinder, a heat equalizing tube, a heating coil, a capillary wick, and a working fluid. The heat equalizing cylinder is installed on the heating cylinder, the heating coil is installed on the heating cylinder, the heat equalizing tube is installed on the heat equalizing cylinder, the capillary wick is installed in the heat equalizing tube, and the working fluid is arranged in the heat equalizing tube.

[0013] By adding the polyester fiber raw material to be processed into the heating cylinder, the heating cylinder begins to heat the polyester fiber raw material until the polyester fiber raw material is heated into a paste state and enters the equalizing cylinder. The heating coil on the equalizing cylinder heats the equalizing tube, and the equalizing tube conducts heat in the equalizing cylinder to heat the polyester. When hot, the working fluid in the tube evaporates due to the heat, and the formed steam flows rapidly to the other end of the equalizing tube under a small pressure difference. After releasing the heat, the steam condenses into liquid again, and the liquid flows back to the end of the equalizing tube where the heating coil exists by capillary suction. The heat is transferred in a repeated cycle, so that the temperature in the equalizing cylinder is always the same, so that the polyester is heated more evenly when circulating in the device, and is less likely to partially cool and agglomerate, thereby improving the processing quality of the polyester fiber.

[0014] Furthermore, the stirring assembly comprises:

[0015] A stirring base, wherein the stirring base is installed on the heat soaking cylinder;

[0016] a second stirring seat, the second stirring seat being arranged on the stirring base;

[0017] A rotating rod, wherein the rotating rod is mounted on the second stirring seat;

[0018] A stirring device, wherein the stirring device is mounted on the rotating rod;

[0019] A filter assembly is mounted on the stirring base.

[0020] By rotating the stirring base and the second stirring base separately, the rotation of the second stirring base drives the rotating rod to rotate, and the rotation of the rotating rod drives the stirring device to rotate, so that the polyester in the equalizing cylinder is more uniform, and the polyester is heated more comprehensively during stirring, thereby avoiding the occurrence of partial lumps that affect the processing quality of the polyester.

[0021] Furthermore, the filtering component comprises:

[0022] A slot, wherein the slot is arranged on the stirring base;

[0023] A filter screen is installed on the slot.

[0024] The filtering assembly includes a slot and a filter screen, the slot is arranged on the stirring base, and the filter screen is installed on the slot. When the stirring base rotates, the filter screen drives the filter screen in the slot of the stirring base to rotate. The filter screen is cylindrical and is used to filter normal paste-like polyester when rotating, and the agglomerated polyester is retained in the filter screen and continues to be stirred and heated until the filter screen is filtered, so that the polyester slurry passing through the filter screen is not in a agglomerated state, thereby ensuring the quality of polyester processing.

[0025] Furthermore, the diversion component includes:

[0026] A diversion chamber, wherein the diversion chamber is installed on the stirring base;

[0027] A shunt block, the shunt block is installed in the shunt cavity;

[0028] A heating tube is installed on the diverter block.

[0029] The diversion component includes a diversion chamber, a diversion block and a heating tube. The diversion chamber is installed on the stirring base, the diversion block is installed in the diversion chamber, and the heating tube is installed on the diversion block. When the polyester enters the diversion chamber, it is diverted by the diversion block. After the polyester is diverted, the polyester is heated again by two rows of heating tubes in the diversion block. After the diversion, the secondary heating is more uniform, so that the quality of polyester processing is better.

[0030] Furthermore, the stirring device comprises:

[0031] A stirring fixed seat, the stirring fixed seat is installed on the rotating rod, and the stirring fixed seat is provided with a perforation;

[0032] a bolt installed in the through hole;

[0033] a nut mounted on the bolt;

[0034] A disassembly assembly, wherein the disassembly assembly is mounted on the stirring fixed seat;

[0035] A stirring blade is mounted on the disassembly component.

[0036] The stirring device includes a stirring fixed seat, bolts, a disassembly assembly, and a stirring blade. The stirring fixed seat is installed on the rotating rod. The stirring fixed seat is provided with a through hole. The bolt is installed in the through hole. The nut is installed on the bolt. The disassembly assembly is installed on the stirring fixed seat. The stirring blade is installed on the disassembly assembly. The stirring blade can be disassembled by disassembling the nut to disassemble the bolt to disassemble the stirring device, so that the stirring device can be replaced in case of damage, so that the device can maintain a stable state for working.

[0037] Furthermore, the disassembly assembly includes:

[0038] A fixed pipe, the fixed pipe is installed on the stirring fixed seat; a first threaded hole is arranged in the fixed pipe;

[0039] A connecting rod, one end of which is mounted on the stirring blade, and the other end of which is mounted in the fixing tube, and a second threaded hole is provided on the connecting rod;

[0040] A screw is installed in cooperation with the second threaded hole.

[0041] The disassembly assembly includes a fixing tube and a connecting rod, and the fixing tube is installed on the stirring fixing seat; a first threaded hole is arranged in the fixing tube, one end of the connecting rod is installed on the stirring blade, and the other end is installed in the fixing tube, and a second threaded hole is arranged on the connecting rod, and the screw is installed in cooperation with the second threaded hole. The connecting rod and the fixing tube can be fixed and the fixation can be cancelled by removing the screw to disassemble and assemble the fan blade, and the fan blade can be replaced in time when it is damaged, thereby improving the working stability of the device.

[0042] The beneficial effects of this application are:

[0043] 1. The working fluid in the tube evaporates due to heat, and the formed steam flows rapidly to the other end of the equalizing tube under a small pressure difference. After releasing the heat, the steam condenses into liquid again, and the liquid flows back to the end of the equalizing tube where the heating coil is located by capillary suction. The heat is transferred in a repeated cycle, so that the temperature in the equalizing tube is always the same, so that the polyester is heated more evenly when circulating in the device, and it is less likely to have the phenomenon of partial cooling and agglomeration;

[0044] 2. The rotation of the second stirring seat drives the rotating rod to rotate, and the rotation of the rotating rod drives the stirring device to rotate, so that the polyester in the equalizing cylinder is more uniform, and the polyester is heated more comprehensively during the stirring, thereby avoiding the occurrence of partial agglomeration and affecting the processing quality of the polyester;

[0045] 3. When rotating, it is used to filter the normal paste-like polyester, and keep the agglomerated polyester in the filter screen and continue to stir and heat until the filter screen is filtered, so that the polyester slurry on the filter screen is not in a agglomerated state, ensuring the quality of polyester processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the overall structure of this application;

[0047] Figure 2 It is a cross-sectional view of the overall structure of this application;

[0048] Figure 3 It is a structural schematic diagram of the stirring device of the present application;

[0049] Figure 4 is a cross-sectional view of the stirring device of the present application;

[0050] Figure 5 This application Figure 2 A magnified view of part A;

[0051] The reference numerals in the figure are: 100, heating tube; 200, heat-saturating assembly; 210, heat-saturating tube; 220, heat-saturating tube; 230, heating coil; 240, capillary wick; 250, working fluid; 300, stirring assembly; 310, stirring base; 320, second stirring seat; 340, rotating rod; 350, stirring device; 351, stirring fixed seat; 352, bolt; 353, nut; 355, stirring blade; 356, perforation; 370, disassembly assembly; 371, fixing tube; 372, connecting rod; 373, screw; 374, first threaded hole; 375, second threaded hole; 360, filtering assembly; 361, slot; 362, filter; 400, diversion assembly; 410, diversion chamber; 420, diversion block; 430, heating tube; 500, unloading rack; 600, spray rack. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0053] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0054] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0055] Embodiment 1:

[0056] like Figure 1 , Figure 2 As shown, the embodiment of the present application provides a polyester spinning heat equalizing device, including a heating cylinder, and also including:

[0057] A heat-saturating component, wherein the heat-saturating component is mounted on the heating cylinder;

[0058] A stirring assembly, wherein the stirring assembly is installed in the heat-saturating assembly;

[0059] A flow distribution component, wherein the flow distribution component is installed on the heat distribution component;

[0060] A material unloading rack, the material unloading rack being mounted on the diversion assembly;

[0061] A spraying frame, wherein the spraying frame is installed on the unloading frame;

[0062] Among them, the heat equalizing component includes a heat equalizing cylinder, a heat equalizing tube, a heating coil, a capillary wick, and a working fluid. The heat equalizing cylinder is installed on the heating cylinder, the heating coil is installed on the heating cylinder, the heat equalizing tube is installed on the heat equalizing cylinder, the capillary wick is installed in the heat equalizing tube, and the working fluid is arranged in the heat equalizing tube.

[0063] By adding the polyester fiber raw material to be processed into the heating cylinder, the heating cylinder begins to heat the polyester fiber raw material until the polyester fiber raw material is heated into a paste state and enters the equalizing cylinder. The heating coil on the equalizing cylinder heats the equalizing tube, and the equalizing tube conducts heat in the equalizing cylinder to heat the polyester. When hot, the working fluid in the tube evaporates due to the heat, and the formed steam flows rapidly to the other end of the equalizing tube under a small pressure difference. After releasing the heat, the steam condenses into liquid again, and the liquid flows back to the end of the equalizing tube where the heating coil exists by capillary suction. The heat is transferred in a repeated cycle, so that the temperature in the equalizing cylinder is always the same, so that the polyester is heated more evenly when circulating in the device, and is less likely to partially cool and agglomerate, thereby improving the processing quality of the polyester fiber.

[0064] Embodiment 2:

[0065] like Figure 2 , Figure 5 As shown, the embodiment of the present application provides a polyester spinning and heating device. In addition to the above technical features, the stirring component includes:

[0066] A stirring base, wherein the stirring base is installed on the heat soaking cylinder;

[0067] a second stirring seat, the second stirring seat being arranged on the stirring base;

[0068] A rotating rod, wherein the rotating rod is mounted on the second stirring seat;

[0069] A stirring device, wherein the stirring device is mounted on the rotating rod;

[0070] A filter assembly is mounted on the stirring base.

[0071] By rotating the stirring base and the second stirring base separately, the rotation of the second stirring base drives the rotating rod to rotate, and the rotation of the rotating rod drives the stirring device to rotate, so that the polyester in the equalizing cylinder is more uniform, and the polyester is heated more comprehensively during stirring, thereby avoiding the occurrence of partial lumps that affect the processing quality of the polyester.

[0072] Embodiment 3:

[0073] like Figure 2 , Figure 5 As shown, the embodiment of the present application provides a polyester spinning heat soaking device, in addition to the above technical features, the filter assembly includes:

[0074] A slot, wherein the slot is arranged on the stirring base;

[0075] A filter screen is installed on the slot.

[0076] The filtering assembly includes a slot and a filter screen, the slot is arranged on the stirring base, and the filter screen is installed on the slot. When the stirring base rotates, the filter screen drives the filter screen in the slot of the stirring base to rotate. The filter screen is cylindrical and is used to filter normal paste-like polyester when rotating, and the agglomerated polyester is retained in the filter screen and continues to be stirred and heated until the filter screen is filtered, so that the polyester slurry passing through the filter screen is not in a agglomerated state, thereby ensuring the quality of polyester processing.

[0077] Embodiment 4:

[0078] like Figure 2 As shown, the embodiment of the present application provides a polyester spinning and heating device. In addition to the above technical features, the diversion component includes:

[0079] A diversion chamber, wherein the diversion chamber is installed on the stirring base;

[0080] A shunt block, the shunt block is installed in the shunt cavity;

[0081] A heating tube is installed on the diverter block.

[0082] The diversion component includes a diversion chamber, a diversion block and a heating tube. The diversion chamber is installed on the stirring base, the diversion block is installed in the diversion chamber, and the heating tube is installed on the diversion block. When the polyester enters the diversion chamber, it is diverted by the diversion block. After the polyester is diverted, the polyester is heated again by two rows of heating tubes in the diversion block. After the diversion, the secondary heating is more uniform, so that the quality of polyester processing is better.

[0083] Embodiment 5:

[0084] like Figure 3 As shown, the embodiment of the present application provides a polyester spinning and heating device. In addition to the above technical features, the stirring device includes:

[0085] A stirring fixed seat, the stirring fixed seat is installed on the rotating rod, and the stirring fixed seat is provided with a perforation;

[0086] a bolt installed in the through hole;

[0087] a nut mounted on the bolt;

[0088] A disassembly assembly, wherein the disassembly assembly is mounted on the stirring fixed seat;

[0089] A stirring blade is mounted on the disassembly component.

[0090] The stirring device includes a stirring fixed seat, bolts, a disassembly assembly, and a stirring blade. The stirring fixed seat is installed on the rotating rod. The stirring fixed seat is provided with a through hole. The bolt is installed in the through hole. The nut is installed on the bolt. The disassembly assembly is installed on the stirring fixed seat. The stirring blade is installed on the disassembly assembly. The stirring blade can be disassembled by disassembling the nut to disassemble the bolt to disassemble the stirring device, so that the stirring device can be replaced in case of damage, so that the device can maintain a stable state for working.

[0091] Embodiment 6:

[0092] like Figure 4 As shown, the embodiment of the present application provides a polyester spinning and soaking device, in addition to the above technical features, the disassembly component includes:

[0093] A fixed pipe, the fixed pipe is installed on the stirring fixed seat; a first threaded hole is arranged in the fixed pipe;

[0094] A connecting rod, one end of which is mounted on the stirring blade, and the other end of which is mounted in the fixing tube, and a second threaded hole is provided on the connecting rod;

[0095] A screw is installed in cooperation with the second threaded hole.

[0096] The disassembly assembly includes a fixing tube and a connecting rod, and the fixing tube is installed on the stirring fixing seat; a first threaded hole is arranged in the fixing tube, one end of the connecting rod is installed on the stirring blade, and the other end is installed in the fixing tube, and a second threaded hole is arranged on the connecting rod, and the screw is installed in cooperation with the second threaded hole. The connecting rod and the fixing tube can be fixed and the fixation can be cancelled by removing the screw to disassemble and assemble the fan blade, and the fan blade can be replaced in time when it is damaged, thereby improving the working stability of the device.

[0097] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0098] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A polyester spinning heat equalizing device, comprising a heating cylinder (100), characterized in that , also includes: A heat-saturating component (200), wherein the heat-saturating component (200) is mounted on the heating cylinder (100); A stirring assembly (300), wherein the stirring assembly (300) is installed in the heat-saturating assembly (200); A flow distribution component (400), wherein the flow distribution component (400) is installed on the heat distribution component (200); A material unloading rack (500), wherein the material unloading rack (500) is installed on the diversion assembly (400); A spraying frame (600), wherein the spraying frame (600) is installed on the unloading frame (500); The heat equalizing assembly (200) comprises a heat equalizing cylinder (210), a heat equalizing tube (220), a heating coil (230), a capillary wick (240), and a working fluid (250); the heat equalizing cylinder (210) is mounted on the heating cylinder (100); the heating coil (230) is mounted on the heating cylinder (100); the heat equalizing tube (220) is mounted on the heat equalizing cylinder (210); the capillary wick (240) is mounted in the heat equalizing tube (220); and the working fluid (250) is disposed in the heat equalizing tube (220).

2. A polyester spinning heat soaking device according to claim 1, characterized in that: The stirring assembly (300) comprises: A stirring base (310), wherein the stirring base (310) is installed on the heat-averaging cylinder (210); A second stirring seat (320), wherein the second stirring seat (320) is arranged on the stirring base (310); A rotating rod (340), wherein the rotating rod (340) is mounted on the second stirring seat (320); A stirring device (350), wherein the stirring device (350) is installed on the rotating rod (340); A filter assembly (360) is installed on the stirring base (310).

3. A polyester spinning heat soaking device according to claim 2, characterized in that: The filter assembly (360) comprises: A slot (361), wherein the slot (361) is disposed on the stirring base (310); A filter screen (362) is installed on the slot (361).

4. A polyester spinning heat soaking device according to claim 3, characterized in that: The flow dividing component (400) comprises: A flow dividing chamber (410), wherein the flow dividing chamber (410) is installed on the stirring base (310); A diverter block (420), wherein the diverter block (420) is installed in the diverter cavity (410); A heating tube (430), wherein the heating tube (430) is installed on the diverter block (420).

5. A polyester spinning heat soaking device according to claim 4, characterized in that: The stirring device (350) comprises: A stirring fixed seat (351), wherein the stirring fixed seat (351) is mounted on the rotating rod (340), and a through hole (356) is provided on the stirring fixed seat (351); a bolt (352), wherein the bolt (352) is installed in the through hole (356); A nut (353), wherein the nut (353) is mounted on the bolt (352); A disassembly assembly (370), wherein the disassembly assembly (370) is mounted on the stirring fixed seat (351); A stirring blade (355), wherein the stirring blade (355) is installed on the disassembly component (370).

6. A polyester spinning heat soaking device according to claim 5, characterized in that: The disassembly assembly (370) comprises: A fixed pipe (371), wherein the fixed pipe (371) is installed on the stirring fixed seat (351); a first threaded hole (374) is provided in the fixed pipe (371); A connecting rod (372), one end of the connecting rod (372) is mounted on the stirring blade (355), and the other end is mounted in the fixed tube (371), and a second threaded hole (375) is provided on the connecting rod (372); A screw (373), wherein the screw (373) is installed in cooperation with the second threaded hole (375).

Citation Information

Patent Citations

  • A composite spinneret

    CN112695387B