A coating device

Abstract

The present application relates to the field of coating processing technology, and in particular to a coating device, comprising a frame, a fixing mechanism fixed to the frame, a reciprocating drive mechanism, and a barrel; along the conveying direction of the fiber yarn, the fixing mechanism comprises a first fixing component and a second fixing component, the first fixing component and the second fixing component being used to clamp the fiber yarn; the end of the first fixing component is immersed in the coating fluid in the barrel; the reciprocating drive mechanism is connected to the first fixing component, and the reciprocating drive mechanism drives the first fixing component to perform a periodic untwisting or twisting action on the fiber yarn. In the present application, when the fiber yarn is immersed in the coating fluid, the reciprocating drive mechanism drives the first fixing component to move, performing a periodic untwisting or twisting action on the fiber yarn; so that several fiber filaments in the fiber yarn are separated from each other, so that the coating fluid can be applied to the surface of the fiber filaments, thereby improving the coating effect of the coating fluid on the fiber yarn.

Description

Technical Field

[0001] The present application relates to the technical field of coating processing, and in particular to a coating device. Background Art

[0002] During the yarn production process, several fiber filaments (natural fibers, quartz fibers, glass fibers, etc.) are twisted into a single strand of yarn. Conventional technologies allow the surface of the yarn to be coated with other fluid materials (acrylic polymers, polyurethanes, combustion aids, UV-resistant additives, etc.) to form a coating. This coating can improve the yarn's performance or impart new functions (such as waterproofing, antifouling, flame retardancy, and UV resistance).

[0003] Fiber yarn coating devices are key equipment in the textile industry. They are used to evenly coat the surface of fiber yarns with specific materials (such as polymers, water repellents, antistatic agents, flame retardants, etc.) to impart special functions or improve the yarn's performance. In existing coating devices, the fiber yarn is typically immersed in a liquid coating material in an immersion tank. Excess liquid is then removed using a scraper or roller, and the coating is then formed through a drying or curing device. However, during the immersion process, the fiber yarn is twisted into a single unit, making it difficult for the liquid coating material to contact the fiber yarn's internal surfaces. This affects the coating's effectiveness and, consequently, the yarn's new functionality. Summary of the Invention

[0004] In order to improve the coating effect of the coating fluid on the surface of the fiber yarn, the present application provides a coating device.

[0005] The present application provides a coating device, which adopts the following technical solution:

[0006] A coating device comprises a frame, a fixing mechanism fixed on the frame, a reciprocating drive mechanism and a barrel; along the conveying direction of the fiber yarn, the fixing mechanism comprises a first fixing component and a second fixing component, the first fixing component and the second fixing component are used to clamp the fiber yarn, and the fiber yarn is slidingly connected to the first fixing component and the second fixing component; the barrel is used to contain a coating fluid, and the end of the first fixing component is immersed in the coating fluid in the barrel so that the coating fluid is coated on the surface of the fiber yarn; the reciprocating drive mechanism is connected to the first fixing component, and the reciprocating drive mechanism drives the first fixing component to perform periodic untwisting or twisting actions on the fiber yarn so that the coating fluid is coated on the fiber surface of the fiber yarn.

[0007] By adopting the above technical solution, when the fiber yarn is immersed in the coating fluid, the first fixed component and the second fixed component relatively fix the position of the fiber yarn; the reciprocating drive mechanism drives the first fixed component to move, performing periodic untwisting or twisting actions on the fiber yarn. When the fiber yarn is untwisted in the coating fluid, several fiber filaments in the fiber yarn separate from each other, and the diameter of the fiber yarn increases, making it easier for the coating fluid to penetrate into the interior of the fiber yarn, so that the coating fluid can be evenly coated on the surface of the fiber filaments; during the process of twisting the fiber yarn to its original state, several fiber filaments squeeze each other to squeeze out excess coating fluid in the fiber yarn, so that the coating fluid is coated on the surface of the fiber filaments. The coating fluid is coated on the surface of the fiber yarn, improving the coating effect of the coating fluid on the fiber yarn.

[0008] Optionally, the first fixed assembly further includes a first mounting seat, a fixing member and a sliding member; the first mounting seat is fixed on the frame, both ends of the fixing member are rotatably connected to the first mounting seat, the sliding member is slidably connected to the first mounting seat, and a gap is provided between the sliding member and the fixing member for the fiber yarn to pass through, so that the sliding member and the fixing member clamp the fiber yarn; the reciprocating drive mechanism drives the sliding member to perform linear reciprocating motion, and the sliding direction of the sliding member is set perpendicular to the conveying direction of the fiber yarn.

[0009] By adopting the above technical solution, the fiber yarn is clamped by the sliding member and the fixed member. When the linear reciprocating drive member drives the sliding member to perform linear reciprocating motion, the fiber yarn will be untwisted or twisted synchronously, thereby improving the coating effect of the coating fluid on the surface of the fiber yarn.

[0010] Optionally, a positioning groove is provided on the fixing member, and the positioning groove is used to accommodate the fiber yarn, and the groove depth of the positioning groove is smaller than the diameter of the fiber yarn.

[0011] By adopting the above technical solution, the position of the fiber yarn is limited by the positioning groove, so as to facilitate the linear transportation of the fiber yarn.

[0012] Optionally, the first fixing assembly further includes a first elastic member, one end of the first elastic member is fixed on the first mounting seat, the other end of the first elastic member abuts against the sliding member, and the first elastic member forces the sliding member to approach the fixing member.

[0013] By adopting the above technical solution, when the fiber yarn passes through the gap between the sliding member and the fixed member, the first elastic member forces the sliding member to approach the fixed member, so that the sliding member applies pressure to the fiber yarn; thereby, when the linear reciprocating drive member drives the sliding member to move, the effect of untwisting and twisting the fiber yarn can be improved, thereby improving the coating effect of the coating fluid on the fiber yarn.

[0014] Optionally, the first fixing assembly includes a second mounting seat, a bearing, a fixing sleeve and a clamping assembly; the second mounting seat is fixed to the frame, the second mounting seat is provided with a first mounting hole, and the bearing is installed in the first mounting hole; the fixing sleeve is provided on the inner ring of the bearing, the fiber yarn is passed through the internal cavity of the fixing sleeve, the fixing sleeve is provided with a plurality of second mounting holes, and the plurality of mounting holes are arranged in an annular manner; there are two clamping assemblies, the main bodies of the two clamping assemblies are symmetrically arranged in the internal cavity of the fixing sleeve, and the fiber yarn is passed through the gap between the two clamping assemblies; the clamping assembly includes a clamping cross bar, a clamping vertical bar, a clamping roller and a second elastic member; The clamping cross bar is arranged in the internal cavity of the fixed sleeve, and two clamping vertical rods are provided. The two clamping vertical rods are fixed at both ends of the clamping cross bar, and the clamping vertical rod is passed through the second mounting hole. The clamping vertical rod is slidingly connected to the fixed sleeve, and one end of the second elastic member abuts against the inner side wall of the fixed sleeve, and the other end of the second elastic member abuts against the clamping cross bar; the clamping roller is arranged between the two clamping vertical rods, and the clamping roller is rotatably connected to the end of the clamping vertical rod; under the action of the second elastic member, the two clamping rollers always tend to approach each other, and the two clamping rollers are used to clamp the fiber yarn; the reciprocating drive mechanism drives the fixed sleeve to perform periodic reciprocating rotation.

[0015] By adopting the above technical solution, when the fiber yarn is passed through the internal chamber of the fixed sleeve, the two clamping rollers clamp the fiber yarn; therefore, when the reciprocating drive mechanism drives the fixed sleeve to rotate periodically, the two clamping rollers will drive the fiber yarn to periodically untwist and twist, so as to improve the coating effect of the coating fluid on the surface of the fiber yarn.

[0016] At the same time, the clamping roller is rotatably connected to the fixed vertical rod. When the fiber yarn passes through the gap between the two clamping rollers, the clamping roller can also rotate to reduce the resistance encountered by the fiber yarn when passing through the two clamping rollers, so that the fiber yarn can pass through the first fixed component smoothly.

[0017] Optionally, the clamping roller includes a rigid roller and a flexible member, the flexible member is sleeved on the outer circumference of the rigid roller, the end of the rigid roller is rotatably connected to the clamping vertical rod, and the flexible member is used to abut against the fiber yarn.

[0018] By adopting the above technical solution, when the two clamping rollers clamp the fiber yarn, the flexible parts will exert force on the fiber yarn under the action of their own elastic deformation, so as to improve the clamping effect of the two clamping rollers on the fiber yarn.

[0019] Optionally, it also includes a pretreatment mechanism, which is fixed to the material input end of the frame, and the fiber yarn passes through the pretreatment mechanism and the fixing mechanism in sequence; the pretreatment mechanism includes a steamer and a steam pipe, one end of the steam pipe is connected to the steamer, and the other end of the steam pipe is externally connected to a steam generating device, the steamer is provided with a accommodating chamber for accommodating steam, and the outer periphery of the steamer is provided with a penetration hole for the fiber yarn to pass through, and the fiber yarn is passed through the accommodating chamber of the steamer.

[0020] By adopting this technical solution, while the fiber yarn is in the steamer's chamber, it comes into contact with high-temperature steam, thereby optimizing the physical state of the fiber filaments in the yarn through heat and moisture. The high temperature and humidity of the steam soften the fiber filaments and reduce their internal stress, facilitating subsequent twisting or twisting of the yarn and reducing the risk of fiber breakage.

[0021] Optionally, it also includes a guiding mechanism, which is fixed on the frame and arranged between the pretreatment mechanism and the fixing mechanism; along the conveying direction of the fiber yarn, the guiding mechanism includes a plurality of guiding components, and the guiding components include a guide rod and a guide wheel, one end of the guide rod is fixedly connected to the frame, and the other end of the guide rod is fixed to the guide wheel; the fiber yarn is wound around the plurality of guide wheels in sequence.

[0022] By adopting the above technical solution, the plurality of guide wheels, on the one hand, guide the fiber yarn, thereby facilitating its transport. On the other hand, the plurality of guide wheels can adjust the tension of the fiber yarn and exert a restraining effect on the fiber yarn. Thus, when the first fixing component applies an untwisting or twisting action to the fiber yarn, the untwisting effect of the fiber yarn can be improved.

[0023] Optionally, a flow-disturbing mechanism is further included, wherein the flow-disturbing mechanism is fixed on the frame, and the main body of the flow-disturbing mechanism is immersed in the coating fluid in the barrel, and the flow-disturbing mechanism is used to drive the coating fluid to flow in the barrel.

[0024] By adopting the above technical solution, the coating fluid is forced to flow in the barrel through the flow disturbance mechanism, so that the coating fluid can penetrate into the interior of the fiber yarn, thereby improving the coating effect and coating efficiency of the fiber yarn coating.

[0025] Optionally, the spoiler mechanism includes a spoiler motor, a spoiler rod and a spoiler piece, the spoiler motor is fixed on the frame, one end of the spoiler rod is fixedly connected to the driving end of the spoiler motor, and the other end of the spoiler rod is fixedly connected to the spoiler piece, the spoiler piece is immersed in the coating fluid of the barrel, and the spoiler piece drives the coating fluid in the barrel to flow toward the fiber yarn.

[0026] By adopting the above technical solution, when the fiber yarn is untwisted or twisted in the coating fluid, the spoiler mechanism operates synchronously, and the spoiler motor drives the spoiler to rotate, so that the coating fluid continues to flow to the position where the fiber yarn is located, so that the fiber filaments in the fiber yarn can be fully in contact with the coating fluid, thereby further improving the coating effect of the coating fluid on the surface of the fiber yarn.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] When the fiber yarn is immersed in the coating fluid, the reciprocating drive mechanism drives the first fixed component to move, performing periodic untwisting or twisting actions on the fiber yarn, so that several fiber filaments in the fiber yarn are separated from each other, and the coating fluid is applied to the surface of the fiber filaments, thereby improving the coating effect of the coating fluid on the fiber yarn;

[0029] While the fiber yarn is in the steamer's chamber, it comes into contact with high-temperature steam, optimizing the physical state of the fiber filaments through thermal and hygroscopic action. The high temperature and humidity of the steam soften the fiber filaments and reduce their internal stress, facilitating subsequent twisting or twisting of the yarn and reducing the risk of fiber breakage.

[0030] The flow disturbance mechanism is used to force the coating fluid to flow in the barrel, so that the coating fluid can penetrate into the interior of the fiber yarn, thereby improving the coating effect and coating efficiency of the fiber yarn coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the coating device in Example 1.

[0032] Figure 2 This is a cross-sectional view of the structure of the coating device in Example 1.

[0033] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0034] Figure 4 It is a structural diagram of the first fixing component in Example 1.

[0035] Figure 5 This is a cross-sectional view of the structure of the coating device in Example 2.

[0036] Figure 6 Schematic diagram of the structure of the coating device in Example 3.

[0037] Figure 7 yes Figure 6 Enlarged view of point B in the middle.

[0038] Figure 8 It is a structural diagram of the first fixing component in Example 3.

[0039] Figure 9 It is a structural diagram of the first fixing component in Example 3.

[0040] Figure 10 It is a structural diagram of the first fixing component in Example 3.

[0041] Figure 11 yes Figure 10 Enlarged view of point C in the middle.

[0042] Explanation of reference numerals: 1. frame; 2. pretreatment mechanism; 21. steam box; 211. accommodating chamber; 22. steam pipe; 23. rubber ring; 24. penetration hole; 3. guide mechanism; 31. guide assembly; 311. guide rod; 312. guide wheel; 4. fixing mechanism; 41. first fixing assembly; 411. first mounting seat; 4111. vertical through hole; 412. fixing member; 4121. positioning groove; 413. sliding member; 4131. limiting through hole; 414. first elastic member; 415. second mounting seat; 4151. first mounting hole; 416. bearing; 417. fixing sleeve Cylinder; 4171, first component; 4172, second component; 4173, connecting ear plate; 4174, second mounting hole; 418, clamping assembly; 4181, clamping cross bar; 4182, clamping vertical bar; 4183, second elastic member; 4184, clamping roller; 41841, rigid roller; 41842, flexible member; 42, second fixed assembly; 421, fixed roller; 5, reciprocating drive mechanism; 51, cylinder; 52, connecting rod; 53, motor; 54, pulley; 6, barrel; 7, spoiler mechanism; 71, spoiler motor; 72, spoiler rod; 73, spoiler; 8, fiber yarn. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1 -11 Provide further details on this application. Example 1

[0044] The present application embodiment discloses a coating device. Figures 1 to 3 The coating device includes a frame 1, a pretreatment mechanism 2 fixed on the frame 1, a guide mechanism 3, a fixing mechanism 4, a reciprocating drive mechanism 5 and a barrel 6.

[0045] Reference Figure 1 In this embodiment, the fiber yarn 8 is conveyed from the lower right to the upper left; the fiber yarn 8 passes through the pretreatment mechanism 2, the guide mechanism 3, and the fixing mechanism 4 in sequence. In this embodiment, along the conveying direction of the fiber yarn 8, the preceding process and the following process of the coating device are equipped with traction structures (e.g., rollers) to pull and convey the fiber yarn 8.

[0046] Reference Figure 1 and Figure 2 The pretreatment mechanism 2 is fixed to the incoming material end of the frame 1 and comprises a steamer 21, a steam pipe 22, and a rubber ring 23. The steamer 21 has a chamber 211 for storing steam. A hole 24 is formed on the outer periphery of the steamer 21 for threading the fiber yarn 8. The fiber yarn 8 is threaded through the chamber 211 of the steamer 21. The rubber ring 23 is secured within the hole 24 of the steamer 21, and the fiber yarn 8 is threaded through the rubber ring 23. One end of the steam pipe 22 is connected to the steamer 21, and the other end is connected to an external steam generator. The steam pipe 22 is used to deliver high-temperature steam to the chamber 211.

[0047] Reference Figure 1 and Figure 2 The guide mechanism 3 is fixed to the frame 1 and is arranged between the pretreatment mechanism 2 and the fixing mechanism 4. Along the conveying direction of the fiber yarn 8, the guide mechanism 3 includes a plurality of guide assemblies 31. The guide assemblies 31 include guide rods 311 and guide wheels 312. One end of the guide rod 311 is fixedly connected to the frame 1, and the other end of the guide rod 311 is fixed to the guide wheel 312. In the vertical direction, the fiber yarn 8 is sequentially wound around the plurality of guide wheels 312.

[0048] Reference Figure 1 A barrel 6 is fixed within the frame and contains a coating fluid. Fiber yarn 8 is immersed in the coating fluid, allowing the coating fluid to coat the surface of fiber yarn 8. The coating fluid then forms a coating in a subsequent drying or curing device. The coating fluid can be an acrylic polymer, polyurethane, a combustion aid, or an anti-UV additive. Once the coating fluid forms a coating on the fiber yarn surface, it imparts special functions (such as waterproofing, antifouling, flame retardancy, or UV resistance) to the fiber yarn 8 or improves its performance.

[0049] Reference Figure 1 and Figure 3 Along the conveying direction of the fiber yarn 8, the fixing mechanism 4 includes a first fixing assembly 41 and a second fixing assembly 42. The main body of the first fixing assembly 41 is disposed in the barrel 6, and the second fixing assembly 42 is disposed on the side of the barrel 6 away from the guide mechanism 3. The first and second fixing assemblies 41, 42 are used to clamp the fiber yarn 8. The fiber yarn 8 is slidably connected to the first and second fixing assemblies 41, 42.

[0050] Reference Figure 3 and Figure 4 The main body of the first fixing assembly 41 is immersed in the coating fluid in the barrel 6 so that the coating fluid is coated on the surface of the fiber yarn 8. The first fixing assembly 41 includes a first mounting seat 411, a fixing member 412, a sliding member 413 and a first elastic member 414.

[0051] Reference Figure 3 and Figure 4 The first mounting seat 411 is fixed to the frame 1, and both ends of the fixing member 412 are rotatably connected to the first mounting seat 411. In this embodiment, the fixing member 412 is provided with a positioning groove 4121 for accommodating the fiber yarn 8. The groove depth of the positioning groove 4121 is less than the diameter of the fiber yarn 8. The positioning groove 4121 is used to limit the position of the fiber yarn 8, thereby facilitating the linear transportation of the fiber yarn 8.

[0052] Reference Figure 3 and Figure 4 The first mounting seat 411 defines a vertical through-hole 4111, which is located on the side of the fixing member 412 away from the bottom of the barrel 6. The end of the sliding member 413 is inserted into the vertical through-hole 4111, allowing the sliding member to slide vertically along the length of the vertical through-hole 4111. A gap is provided between the sliding member 413 and the fixing member 412 for the fiber yarn 8 to pass through, and the sliding member 413 and the fixing member 412 clamp the fiber yarn 8. Simultaneously, the sliding member 413 is slidably connected to the first mounting seat 411 along its length; that is, the sliding member 413 is slidably connected to the first mounting seat 411.

[0053] Reference Figure 3 and Figure 4 The first elastic member 414 is disposed in the vertical through hole 4111, with one end of the first elastic member 414 fixed to the first mounting seat 411 and the other end of the first elastic member 414 abutting against the sliding member 413. The first elastic member 414 and the sliding member 413 slide and abut, forcing the sliding member 413 toward the fixed member 412. When the fiber yarn 8 passes through the gap between the sliding member 413 and the fixed member 412, the first elastic member 414 forces the sliding member 413 toward the fixed member 412, causing the sliding member 413 to apply pressure to the fiber yarn 8. This increases the force exerted by the sliding member 413 on the fiber yarn 8 when the linear reciprocating drive member drives the sliding member 413 to perform reciprocating linear motion.

[0054] Reference Figure 1 The second fixing component 42 includes two oppositely arranged fixing rollers 421. A gap is provided between the two oppositely arranged fixing rollers 421 for the fiber yarn 8 to pass through. The fiber yarn 8 passes through the gap between the two fixing rollers 421. The two fixing rollers 421 have a fixing effect on the fiber yarn 8.

[0055] Reference Figure 4 The reciprocating drive mechanism 5 is connected to the first fixed component 41 , and the reciprocating drive mechanism 5 drives the first fixed component 41 to periodically untwist or twist the fiber yarn 8 so that the coating fluid is applied to the fiber surface of the fiber yarn 8 .

[0056] Reference Figure 4 In this embodiment, the reciprocating drive mechanism 5 includes a cylinder 51 and a connecting rod 52. The connecting rod 52 is arranged vertically and fixedly connected to the driving end of the cylinder 51. A limiting through-hole 4131 is formed at the end of the sliding member 413 for the connecting rod 52 to pass through. The reciprocating drive mechanism 5 drives the sliding member 413 to perform linear reciprocating motion. The sliding direction of the sliding member 413 is set perpendicular to the conveying direction of the fiber yarn 8. That is, the fiber yarn 8 is clamped by the sliding member 413 and the fixing member 412. When the linear reciprocating drive member drives the sliding member 413 to perform linear reciprocating motion, the fiber yarn 8 will be simultaneously untwisted or twisted.

[0057] The implementation principle of a coating device in the embodiment of the present application is as follows:

[0058] Reference Figure 1 and Figure 2 When the fiber yarn 8 is in the receiving chamber 211 of the steamer 21, it comes into contact with the high-temperature steam, thereby optimizing the physical state of the fiber filaments in the fiber yarn 8 through the heat and moisture effects of the high-temperature steam. The high temperature and humidity of the steam soften the fiber filaments and reduce their internal stress, facilitating subsequent twisting or twisting of the fiber yarn 8 and reducing the risk of fiber breakage.

[0059] Reference Figure 1 and Figure 2 On the one hand, the guide wheels 312 guide the fiber yarn 8 to facilitate the transportation of the fiber yarn 8. On the other hand, the guide wheels 312 constrain the fiber yarn 8 and adjust the tension of the fiber yarn 8. Therefore, when the first fixing component 41 applies an untwisting or twisting action to the fiber yarn 8, the untwisting effect of the fiber yarn 8 can be improved.

[0060] Reference Figure 1 and Figure 2 When the fiber yarn 8 is immersed in the coating fluid, the first fixing component 41 and the second fixing component 42 relatively fix the position of the fiber yarn 8.

[0061] Reference Figure 3 and Figure 4 The reciprocating drive mechanism 5 drives the sliding member 413 to perform linear reciprocating motion, periodically untwisting and twisting the fiber yarn 8. For example, when the reciprocating drive mechanism 5 drives the sliding member 413 away from the cylinder, the fiber yarn 8 near the guide mechanism is twisted, while the fiber yarn 8 away from the guide mechanism is untwisted. When the reciprocating drive mechanism 5 drives the sliding member 413 toward the cylinder, the fiber yarn 8 near the guide mechanism is untwisted, while the fiber yarn 8 away from the guide mechanism is twisted, and the fiber yarn 8 returns to its original state.

[0062] Reference Figure 3 and Figure 4 When the fiber yarn 8 is untwisted in the coating fluid, several fiber filaments in the fiber yarn 8 are separated from each other, and the diameter of the fiber yarn 8 becomes larger, making it easier for the coating fluid to penetrate into the interior of the fiber yarn 8, so that the coating fluid can be evenly coated on the surface of the fiber yarn 8; in the process of twisting the fiber yarn 8 to its original state, several fiber filaments squeeze each other to squeeze out the excess coating fluid in the fiber yarn 8, so that the coating fluid is coated on the surface of the fiber filaments, thereby improving the coating effect of the coating fluid on the fiber yarn 8. Example 2

[0063] The difference between this embodiment 2 and embodiment 1 is that:

[0064] Reference Figure 5 The coating device also includes a flow disturbance mechanism 7, which is fixed on the frame 1, and the main body of the flow disturbance mechanism 7 is immersed in the coating fluid in the barrel 6. The flow disturbance mechanism 7 is used to drive the coating fluid to flow in the barrel 6.

[0065] In this embodiment, the flow-disrupting mechanism 7 includes a flow-disrupting motor 71, a flow-disrupting rod 72, and a flow-disrupting member 73. The flow-disrupting motor 71 is fixed to the frame 1, and the flow-disrupting rod 72 is vertically arranged. One end of the flow-disrupting rod 72 is fixedly connected to the driving end of the flow-disrupting motor 71, and the other end of the flow-disrupting rod 72 is fixedly connected to the flow-disrupting member 73. The flow-disrupting member 73 is immersed in the coating fluid in the barrel 6, and a clearance distance is provided between the flow-disrupting member 73 and the first fixing member 412 and the fiber yarn 8. The flow-disrupting member 73 is provided with a plurality of blades on its periphery, so that when the flow-disrupting member 73 rotates, it can force the coating fluid to flow in the barrel 6.

[0066] The implementation principle of a coating device in the embodiment of the present application is as follows:

[0067] Reference Figure 5 When the fiber yarn 8 is untwisted or twisted in the coating fluid, the flow disturbance motor 71 drives the flow disturbance member 73 to rotate, thereby causing the coating fluid to flow in the barrel 6. This allows the coating fluid to continuously flow to the location of the fiber yarn 8, allowing the fiber filaments in the fiber yarn 8 to fully contact the coating fluid, thereby further improving the coating effect of the coating fluid on the surface of the fiber yarn 8. Example 3

[0068] The difference between this embodiment 3 and embodiment 1 is that the specific structures of the first fixing assembly 41 and the reciprocating drive mechanism 5 are different.

[0069] Reference Figures 6 to 8 In this embodiment, the first fixing assembly 41 includes a second mounting seat 415 , a bearing 416 , a fixing sleeve 417 and a clamping assembly 418 .

[0070] Reference Figure 8 and Figure 9 The second mounting base 415 is fixed on the frame 1 and has a first mounting hole 4151 formed therein. The bearing 416 is mounted in the first mounting hole 4151. The fixed sleeve 417 is disposed on the inner ring of the bearing 416, and the fiber yarn 8 is passed through the inner chamber of the fixed sleeve 417.

[0071] Reference Figures 9 to 11 The fixing sleeve 417 defines a plurality of second mounting holes 4174 arranged in a circular pattern. In this embodiment, the fixing sleeve 417 is divided into a first component 4171 and a second component 4172 along the plane where the second mounting holes 4174 are located. The first component 4171 and the second component 4172 are bolted together via connecting lugs 4173, facilitating the installation of the clamping assembly 418 into the second mounting holes 4174.

[0072] Reference Figure 10 and Figure 11 There are two clamping components 418 , and the main bodies of the two clamping components 418 are symmetrically arranged in the internal cavity of the fixed sleeve 417 , and the fiber yarn 8 is passed through the gap between the two clamping components 418 . The clamping assembly 418 includes a clamping cross bar 4181, a clamping vertical bar 4182, a clamping roller 4184 and a second elastic member 4183; the clamping cross bar 4181 is arranged in the internal chamber of the fixed sleeve 417, and there are two clamping vertical bars 4182. The two clamping vertical bars 4182 are fixed at both ends of the clamping cross bar 4181, and the clamping vertical bars 4182 are passed through the second mounting hole 4174. The clamping vertical bars 4182 are slidingly connected to the fixed sleeve 417, and one end of the second elastic member 4183 abuts against the inner wall of the fixed sleeve 417, and the other end of the second elastic member 4183 abuts against the clamping cross bar 4181. The second elastic member 4183 forces the clamping vertical bars 4182 to approach the central axis of the fixed sleeve 417. The clamping roller 4184 is arranged between the two clamping vertical rods 4182, and the clamping roller 4184 is rotatably connected to the end of the clamping vertical rod 4182; under the action of the second elastic member 4183, the two clamping rollers 4184 always tend to approach each other, and the two clamping rollers 4184 are used to clamp the fiber yarn 8.

[0073] Reference Figure 11 The clamping roller 4184 includes a rigid roller 41841 and a flexible part 41842. The two ends of the rigid roller 41841 are rotatably connected to the clamping vertical rod 4182. The flexible part 41842 is sleeved on the outer periphery of the rigid roller 41841. The end of the rigid roller 41841 is rotatably connected to the clamping vertical rod 4182. The flexible part 41842 is used to abut against the fiber yarn 8.

[0074] Reference Figure 7 and Figure 8The reciprocating drive mechanism 5 includes a motor 53 and a pulley 54. The motor 53 is fixed to the frame 1, and the pulley 54 is sleeved between the driving end of the motor 53 and the fixed sleeve 417. The reciprocating drive mechanism 5 drives the fixed sleeve 417 to rotate periodically. In other words, the reciprocating drive mechanism 5 drives the fixed sleeve 417 to rotate forward or reverse periodically, causing the fiber yarn 8 to be periodically untwisted or twisted.

[0075] The implementation principle of a coating device in the embodiment of the present application is as follows:

[0076] When the fiber yarn 8 is passed through the internal chamber of the fixed sleeve 417, the two clamping rollers 4184 clamp the fiber yarn 8; when the two clamping rollers 4184 clamp the fiber yarn 8, the flexible parts 41842 exert force on the fiber yarn 8 under the action of their own elastic deformation, so as to improve the clamping effect of the two clamping rollers 4184 on the fiber yarn 8.

[0077] Therefore, when the reciprocating drive mechanism 5 drives the fixed sleeve 417 to rotate periodically, the two clamping rollers 4184 will drive the fiber yarn 8 to perform periodic untwisting and twisting actions to improve the coating effect of the coating fluid on the surface of the fiber yarn 8.

[0078] At the same time, the clamping roller 4184 is rotatably connected to the fixed vertical rod. When the fiber yarn 8 passes through the gap between the two clamping rollers 4184, the clamping roller 4184 can also rotate on its own to reduce the resistance encountered by the fiber yarn 8 when passing through the two clamping rollers 4184, so that the fiber yarn 8 can pass smoothly through the first fixed component 41.

[0079] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A coating device, characterized in that: The invention comprises a frame (1), a fixing mechanism (4) fixed on the frame (1), a reciprocating drive mechanism (5) and a barrel (6); along the conveying direction of the fiber yarn (8), the fixing mechanism (4) comprises a first fixing component (41) and a second fixing component (42); the first fixing component (41) and the second fixing component (42) are used to clamp the fiber yarn (8); the fiber yarn (8) is slidably connected to the first fixing component (41) and the second fixing component (42); the barrel (6) is used to contain a coating fluid; the first fixing component (41) and the second fixing component (42) are used to hold a coating fluid; 1) is immersed in the coating fluid of the barrel (6) so that the coating fluid is coated on the surface of the fiber yarn (8); the reciprocating drive mechanism (5) is connected to the first fixed component (41), and the reciprocating drive mechanism (5) drives the first fixed component (41) to perform periodic untwisting or twisting actions on the fiber yarn (8) so that the coating fluid is coated on the fiber filament surface of the fiber yarn (8); the first fixed component (41) also includes a first mounting seat (411), a fixing member (412) and a sliding member (413); the first mounting The seat (411) is fixed on the frame (1), both ends of the fixing member (412) are rotatably connected to the first mounting seat (411), the sliding member (413) is slidably connected to the first mounting seat (411), and a gap for the fiber yarn (8) to pass through is provided between the sliding member (413) and the fixing member (412), so that the sliding member (413) and the fixing member (412) clamp the fiber yarn (8); the reciprocating drive mechanism (5) drives the sliding member (413) to perform linear reciprocating motion, and the sliding of the sliding member (413) The moving direction is arranged perpendicular to the conveying direction of the fiber yarn (8); a positioning groove (4121) is provided on the fixing member (412), the positioning groove (4121) is used to accommodate the fiber yarn (8), and the groove depth of the positioning groove (4121) is smaller than the diameter of the fiber yarn (8); and a flow disturbance mechanism (7) is also included, the flow disturbance mechanism (7) is fixed on the frame (1), and the main body of the flow disturbance mechanism (7) is immersed in the coating fluid of the barrel (6), and the flow disturbance mechanism (7) is used to drive the coating fluid to flow in the barrel (6).

2. The coating device according to claim 1, characterized in that: The first fixing assembly (41) further includes a first elastic member (414), one end of the first elastic member (414) is fixed on the first mounting seat (411), and the other end of the first elastic member (414) abuts against the sliding member (413), and the first elastic member (414) forces the sliding member (413) to approach the fixing member (412).

3. The coating device according to claim 1, characterized in that: The machine also includes a pretreatment mechanism (2), the pretreatment mechanism (2) being fixed to the incoming material end of the frame (1), and the fiber yarn (8) passing through the pretreatment mechanism (2) and the fixing mechanism (4) in sequence; the pretreatment mechanism (2) including a steam box (21) and a steam pipe (22), one end of the steam pipe (22) being connected to the steam box (21), and the other end of the steam pipe (22) being externally connected to a steam generating device, the steam box (21) being provided with a accommodating chamber (211) for accommodating steam, the outer periphery of the steam box (21) being provided with a through hole (24) for the fiber yarn (8) to pass through, and the fiber yarn (8) being passed through the accommodating chamber (211) of the steam box (21).

4. The coating device according to claim 3, characterized in that: The invention also includes a guide mechanism (3), wherein the guide mechanism (3) is fixed on the frame (1) and is arranged between the pretreatment mechanism (2) and the fixing mechanism (4); along the conveying direction of the fiber yarn (8), the guide mechanism (3) includes a plurality of guide assemblies (31), and the guide assemblies (31) include a guide rod (311) and a guide wheel (312); one end of the guide rod (311) is fixedly connected to the frame (1), and the other end of the guide rod (311) is fixedly arranged on the guide wheel (312); the fiber yarn (8) is sequentially wound around the plurality of guide wheels (312).

5. The coating device according to claim 1, characterized in that: The spoiler mechanism (7) includes a spoiler motor (71), a spoiler rod (72) and a spoiler (73), wherein the spoiler motor (71) is fixedly mounted on the frame (1), one end of the spoiler rod (72) is fixedly connected to the driving end of the spoiler motor (71), and the other end of the spoiler rod (72) is fixedly connected to the spoiler (73), and the spoiler (73) is immersed in the coating fluid of the barrel (6), and the spoiler (73) drives the coating fluid in the barrel (6) to flow toward the fiber yarn (8).

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