Coating device

Abstract

The invention relates to the technical field of coating processing, in particular to a coating device which comprises a rack, a fixing mechanism fixedly arranged on the rack, a reciprocating driving mechanism and a charging barrel. The fixing mechanism comprises a first fixing assembly and a second fixing assembly in the conveying direction of the fiber yarn, and the first fixing assembly and the second fixing assembly are used for clamping the fiber yarn; the end part of the first fixing assembly is immersed in the coating fluid of the charging barrel; the reciprocating driving mechanism is connected with the first fixing assembly, and the reciprocating driving mechanism drives the first fixing assembly to conduct periodic untwisting or twisting action on the fiber yarn. According to the device, when the fiber yarn is immersed in the coating fluid, the reciprocating driving mechanism drives the first fixing assembly to move, and periodic untwisting or twisting action is conducted on the fiber yarn; the multiple fibers in the fiber yarn are separated from one another, so that the coating fluid is conveniently coated on the surfaces of the fibers, and the coating effect of the coating fluid on the fiber yarn is improved.

Description

Technical Field

[0001] This application relates to the field of coating processing technology, and in particular to a coating apparatus. Background Technology

[0002] In the yarn production process, several fiber filaments (natural fibers, quartz fibers, glass fibers, etc.) need to be twisted into a single fiber yarn. In existing technologies, other fluid materials (acrylic polymers, polyurethane, flame retardants, UV-resistant additives, etc.) can be coated onto the surface of the fiber yarn to form a coating; thereby improving the performance of the fiber yarn itself or giving it new functions (waterproof, stain-resistant, flame-retardant, UV-resistant, etc.).

[0003] Coating equipment for fiber yarns is a key piece of equipment in the textile industry. It is used to uniformly coat the surface of fiber yarns with specific materials (such as polymers, waterproofing agents, antistatic agents, flame retardants, etc.) to impart special functions or improve the performance of the yarn. In existing coating equipment, the fiber yarn is typically immersed in a liquid coating material in an immersion tank. Excess liquid is then removed by a scraper or roller, followed by drying or curing to form the coating. However, during the immersion process, several fibers twist together, making it difficult for the liquid coating material to contact the surface of the fibers within the yarn. This affects the coating effect and the ability to achieve the desired new functions. Summary of the Invention

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

[0005] This application provides a coating apparatus, which adopts the following technical solution: A coating apparatus includes a frame, a fixing mechanism, a reciprocating drive mechanism, and a material cylinder fixed on the frame; along the conveying direction of the fiber yarn, the fixing mechanism includes 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, and the fiber yarn being slidably connected to the first fixing component and the second fixing component; the material cylinder is used to contain coating fluid, and the end of the first fixing component is immersed in the coating fluid in the material cylinder, 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.

[0006] By adopting the above technical solution, when the fiber yarn is immersed in the coating fluid, the first fixing component and the second fixing component fix the position of the fiber yarn relative to each other; the reciprocating drive mechanism drives the first fixing component to move, performing periodic untwisting or twisting actions on the fiber yarn. When the fiber yarn is untwisted in the coating fluid, several fibers 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 twisting process of the fiber yarn to its original state, several fibers squeeze each other to squeeze out excess coating fluid from the fiber yarn, 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.

[0007] Optionally, the first fixing component further includes a first mounting base, a fixing member, and a sliding member; the first mounting base is fixed on the frame, both ends of the fixing member are rotatably connected to the first mounting base, the sliding member is slidably connected to the first mounting base, 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 perpendicular to the conveying direction of the fiber yarn.

[0008] By adopting the above technical solution, the fiber yarn is clamped by the sliding member and the fixing member. When the linear reciprocating drive member drives the sliding member to make linear reciprocating motion, the fiber yarn will simultaneously perform untwisting or twisting action, thereby improving the coating effect of the coating fluid on the surface of the fiber yarn.

[0009] Optionally, the fixing member is provided with a positioning groove, which is used to accommodate the fiber yarn, and the depth of the positioning groove is smaller than the diameter of the fiber yarn.

[0010] By adopting the above technical solution, the position of the fiber yarn is restricted by the positioning groove, so as to facilitate the straight-line transportation of the fiber yarn.

[0011] Optionally, the first fixing component further includes a first elastic member, one end of which is fixed to the first mounting base, and the other end of which abuts against the sliding member, thereby forcing the sliding member to move closer to the fixing component.

[0012] 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 move closer to the fixed member, so that the sliding member applies pressure to the fiber yarn; thus, when the linear reciprocating drive member drives the sliding member to move, the effect of untwisting and twisting of the fiber yarn can be improved, thereby improving the coating effect of the coating fluid on the fiber yarn.

[0013] Optionally, the first fixing component includes a second mounting base, a bearing, a fixing sleeve, and a clamping component; the second mounting base is fixed on the frame, and the second mounting base has a first mounting hole, in which the bearing is installed; the fixing sleeve is disposed on the inner ring of the bearing, and the fiber yarn passes through the internal cavity of the fixing sleeve, and the fixing sleeve has a plurality of second mounting holes arranged in a ring; two clamping components are provided, and the main bodies of the two clamping components are symmetrically disposed in the internal cavity of the fixing sleeve, with the fiber yarn passing through the gap between the two clamping components; the clamping component includes a clamping crossbar, a clamping vertical bar, a clamping roller, and a second elastic element; The clamping crossbar is disposed in the internal cavity of the fixed sleeve. Two clamping vertical bars are provided, which are fixed at both ends of the clamping crossbar. The clamping vertical bars pass through the second mounting hole and are slidably connected to the fixed sleeve. One end of the second elastic element abuts against the inner sidewall of the fixed sleeve, and the other end of the second elastic element abuts against the clamping crossbar. The clamping roller is disposed between the two clamping vertical bars and is rotatably connected to the end of the clamping vertical bars. Under the action of the second elastic element, the two clamping rollers always tend to move closer to each other. The two clamping rollers are used to clamp the fiber yarn. The reciprocating drive mechanism drives the fixed sleeve to perform periodic reciprocating rotation.

[0014] By adopting the above technical solution, when the fiber yarn is inserted into the internal cavity of the fixed sleeve, the two clamping rollers hold the fiber yarn; thus, when the reciprocating drive mechanism drives the fixed sleeve to rotate periodically, the two clamping rollers will drive the fiber yarn to perform periodic untwisting and twisting actions, so as to improve the coating effect of the coating fluid on the surface of the fiber yarn.

[0015] Meanwhile, 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 be smoothly passed through the first fixed component.

[0016] Optionally, the clamping roller includes a rigid roller and a flexible element. The flexible element is sleeved on the outer periphery of the rigid roller, and the end of the rigid roller is rotatably connected to the clamping vertical rod. The flexible element is used to abut against the fiber yarn.

[0017] By adopting the above technical solution, when the two clamping rollers hold the fiber yarn, the flexible components will exert a 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.

[0018] Optionally, a pretreatment mechanism is also included, which is fixed to the material receiving end of the frame. The fiber yarn passes through the pretreatment mechanism and the fixing mechanism in sequence. The pretreatment mechanism includes a steam box and a steam pipe. One end of the steam pipe is connected to the steam box, and the other end of the steam pipe is connected to a steam generating device. The steam box is provided with a receiving chamber for containing steam. The outer periphery of the steam box is provided with a passing hole for the fiber yarn to pass through. The fiber yarn passes through the receiving chamber of the steam box.

[0019] By adopting the above technical solution, when the fiber yarn is located in the containing chamber of the steamer, the fiber yarn comes into contact with high-temperature steam; thereby optimizing the physical state of the fiber filaments in the fiber yarn through the effect of heat and humidity. The high temperature and humidity of the steam can soften the fiber filaments and weaken the internal stress of the fiber filaments, so as to facilitate the subsequent twisting or adding of the fiber yarn and reduce the risk of fiber breakage.

[0020] Optionally, a guiding mechanism is also included, which is fixed on the frame and positioned between the pretreatment mechanism and the fixing mechanism. Along the fiber yarn conveying direction, the guiding mechanism includes several guiding components, each including 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 sequentially wound around several guide wheels.

[0021] By adopting the above technical solution, on the one hand, the guide wheels guide the fiber yarn to facilitate its transport. On the other hand, the guide wheels can adjust the tension of the fiber yarn and constrain it; thus, when the first fixing component applies untwisting or twisting action to the fiber yarn, the untwisting effect of the fiber yarn can be improved.

[0022] Optionally, a flow-dispersing mechanism is also included, which is fixed on the frame and its main body is immersed in the coating fluid in the barrel. The flow-dispersing mechanism is used to drive the coating fluid to flow in the barrel.

[0023] By adopting the above technical solution, the coating fluid is made to flow in the barrel by the turbulence 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.

[0024] Optionally, the turbulence mechanism includes a turbulence motor, a turbulence rod, and a turbulence element. The turbulence motor is fixedly mounted on the frame. One end of the turbulence rod is fixedly connected to the drive end of the turbulence motor, and the other end of the turbulence rod is fixedly connected to the turbulence element. The turbulence element is immersed in the coating fluid in the barrel, and the turbulence element drives the coating fluid in the barrel to flow towards the fiber yarn.

[0025] By adopting the above technical solution, when the fiber yarn is untwisted or twisted in the coating fluid, the turbulence mechanism operates synchronously, and the turbulence motor drives the turbulence component to rotate, so that the coating fluid continuously flows to the location of the fiber yarn, so that the fiber filaments in the fiber yarn can fully contact the coating fluid, thereby further improving the coating effect of the coating fluid on the surface of the fiber yarn.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 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; causing several fibers in the fiber yarn to separate from each other, and the coating fluid to coat the surface of the fiber filaments, thereby improving the coating effect of the coating fluid on the fiber yarn. When the fiber yarn is located in the containing chamber of the steamer, it comes into contact with high-temperature steam; thus, the physical state of the fiber filaments in the fiber yarn is optimized through the effect of heat and humidity. The high temperature and humidity of the steam can soften the fiber filaments and weaken their internal stress, so as to facilitate subsequent twisting or splicing of the fiber yarn and reduce the risk of fiber breakage. The flow disturbance mechanism promotes the flow of coating fluid 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

[0027] Figure 1 This is a schematic diagram of the coating device in Example 1.

[0028] Figure 2 This is a structural cross-sectional view of the coating apparatus in Example 1.

[0029] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0030] Figure 4 This is a schematic diagram of the structure of the first fixing component in Embodiment 1.

[0031] Figure 5 This is a cross-sectional view of the coating apparatus in Example 2.

[0032] Figure 6 This is a schematic diagram of the coating device in Example 3.

[0033] Figure 7 yes Figure 6 Enlarged view of point B in the middle.

[0034] Figure 8 This is a schematic diagram of the structure of the first fixing component in Embodiment 3.

[0035] Figure 9This is a schematic diagram of the structure of the first fixing component in Embodiment 3.

[0036] Figure 10 This is a schematic diagram of the structure of the first fixing component in Embodiment 3.

[0037] Figure 11 yes Figure 10 Enlarged view of point C in the middle.

[0038] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Pre-treatment mechanism; 21. Steamer; 211. Receiving chamber; 22. Steam pipe; 23. Rubber ring; 24. Through hole; 3. Guide mechanism; 31. Guide assembly; 311. Guide rod; 312. Guide wheel; 4. Fixing mechanism; 41. First fixing assembly; 411. First mounting base; 4111. Vertical through hole; 412. Fixing element; 4121. Positioning groove; 413. Sliding element; 4131. Limiting through hole; 414. First elastic element; 415. Second mounting base; 4151. First mounting hole; 416. Bearing; 417. Fixing sleeve 4171, First component; 4172, Second component; 4173, Connecting ear plate; 4174, Second mounting hole; 418, Clamping assembly; 4181, Clamping crossbar; 4182, Clamping vertical bar; 4183, Second elastic element; 4184, Clamping roller; 41841, Rigid roller; 41842, Flexible element; 42, Second fixing assembly; 421, Fixing roller; 5, Reciprocating drive mechanism; 51, Cylinder; 52, Connecting rod; 53, Motor; 54, Pulley; 6, Material cylinder; 7, Turbidity mechanism; 71, Turbidity motor; 72, Turbidity rod; 73, Turbidity element; 8, Fiber yarn. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1 Section 11 provides further details regarding this application. Example 1

[0040] This application discloses a coating apparatus. (Refer to...) Figures 1 to 3 The coating device includes a frame 1, a pretreatment mechanism 2, a guiding mechanism 3, a fixing mechanism 4, a reciprocating drive mechanism 5, and a material cylinder 6, all fixed on the frame 1.

[0041] 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 sequentially through the pretreatment mechanism 2, the guiding mechanism 3, and the fixing mechanism 4. Furthermore, in this embodiment, along the conveying direction of the fiber yarn 8, the preceding and following processes of the coating device are equipped with traction structures (e.g., rollers) to traction and convey the fiber yarn 8.

[0042] Reference Figure 1 and Figure 2The pretreatment mechanism 2 is fixed to the material receiving end of the frame 1. The pretreatment mechanism 2 includes a steam chamber 21, a steam pipe 22, and a rubber ring 23. The steam chamber 21 is provided with a receiving chamber 211 for containing steam. The outer periphery of the steam chamber 21 has a through hole 24 for passing through the fiber yarn 8. The fiber yarn 8 passes through the receiving chamber 211 of the steam chamber 21. The rubber ring 23 is engaged in the through hole 24 of the steam chamber 21, and the fiber yarn 8 passes through the rubber ring 23. One end of the steam pipe 22 is connected to the steam chamber 21, and the other end of the steam pipe 22 is connected to a steam generating device. The steam pipe 22 is used to transport high-temperature steam into the receiving chamber 211.

[0043] Reference Figure 1 and Figure 2 The guiding mechanism 3 is fixed on the frame 1 and is located between the pretreatment mechanism 2 and the fixing mechanism 4. Along the conveying direction of the fiber yarn 8, the guiding mechanism 3 includes several guiding components 31. Each guiding component 31 includes 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 mounted on the guide wheel 312. In the vertical direction, the fiber yarn 8 is wound around several guide wheels 312 in sequence.

[0044] Reference Figure 1 The coating cylinder 6 is fixed inside the frame and is used to contain the coating fluid. The fiber yarn 8 is immersed in the coating fluid in the cylinder 6, allowing the coating fluid to be applied to the surface of the fiber yarn 8. Subsequently, the coating fluid forms a coating in a subsequent drying or curing device. The coating fluid can be one of acrylic polymers, polyurethanes, flame retardants, UV resistant additives, etc.; thus, after the coating fluid is fixed on the surface of the fiber yarn to form a coating, it imparts special functions (waterproof, stain-resistant, flame retardant, UV resistant, etc.) to the fiber yarn 8 or improves its performance.

[0045] Reference Figure 1 and Figure 3 Along the conveying direction of the fiber yarn 8, the fixing mechanism 4 includes a first fixing component 41 and a second fixing component 42; the main body of the first fixing component 41 is disposed in the feed cylinder 6, and the second fixing component 42 is disposed on the side of the feed cylinder 6 away from the guide mechanism 3. The first fixing component 41 and the second fixing component 42 are used to clamp the fiber yarn 8, and the fiber yarn 8 is slidably connected to the first fixing component 41 and the second fixing component 42.

[0046] Reference Figure 3 and Figure 4 The main body of the first fixing component 41 is immersed in the coating fluid in the barrel 6 so that the coating fluid is applied to the surface of the fiber yarn 8. The first fixing component 41 includes a first mounting base 411, a fixing member 412, a sliding member 413 and a first elastic member 414.

[0047] Reference Figure 3 and Figure 4 The first mounting base 411 is fixedly mounted on the frame 1, and both ends of the fixing member 412 are rotatably connected to the first mounting base 411. In this embodiment, the fixing member 412 is provided with a positioning groove 4121, which is used to accommodate the fiber yarn 8. The groove depth of the positioning groove 4121 is smaller than the diameter of the fiber yarn 8. The positioning groove 4121 restricts the position of the fiber yarn 8 to facilitate the linear transport of the fiber yarn 8.

[0048] Reference Figure 3 and Figure 4 The first mounting base 411 has a vertical through hole 4111, which is located on the side of the fixing member 412 away from the bottom of the material cylinder 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. At the same time, the sliding member 413 is slidably connected to the first mounting base 411 along its length; that is, the sliding member 413 is slidably connected to the first mounting base 411.

[0049] Reference Figure 3 and Figure 4 The first elastic element 414 is disposed in the vertical through hole 4111, and one end of the first elastic element 414 is fixed on the first mounting base 411, while the other end of the first elastic element 414 abuts against the sliding element 413. The first elastic element 414 slides and abuts against the sliding element 413, and the first elastic element 414 forces the sliding element 413 to move closer to the fixing element 412. When the fiber yarn 8 passes through the gap between the sliding element 413 and the fixing element 412, the first elastic element 414 forces the sliding element 413 to move closer to the fixing element 412, so that the sliding element 413 applies pressure to the fiber yarn 8; thus, when the linear reciprocating drive drives the sliding element 413 to perform reciprocating linear motion, the force exerted by the sliding element 413 on the fiber yarn 8 can be increased.

[0050] 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, and the two fixing rollers 421 have a fixing effect on the fiber yarn 8.

[0051] Reference Figure 4 The reciprocating drive mechanism 5 is connected to the first fixing component 41. The reciprocating drive mechanism 5 drives the first fixing component 41 to perform periodic untwisting or twisting actions on the fiber yarn 8 so that the coating fluid is applied to the fiber surface of the fiber yarn 8.

[0052] Reference Figure 4In this embodiment, the reciprocating drive mechanism 5 includes a cylinder 51 and a connecting rod 52. The connecting rod 52 is vertically arranged and fixedly connected to the drive end of the cylinder 51. A limiting through hole 4131 for the connecting rod 52 to pass through is provided at the end of the sliding member 413. The reciprocating drive mechanism 5 drives the sliding member 413 to perform linear reciprocating motion, and the sliding direction of the sliding member 413 is 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 mechanism drives the sliding member 413 to perform linear reciprocating motion, the fiber yarn 8 will simultaneously undergo untwisting or twisting actions.

[0053] The implementation principle of a coating device according to an embodiment of this application is as follows: Reference Figure 1 and Figure 2 When the fiber yarn 8 is located in the receiving chamber 211 of the steamer 21, the fiber yarn 8 comes into contact with high-temperature steam; thereby, the physical state of the fiber filaments in the fiber yarn 8 is optimized by the heat and humidity effect of the high-temperature steam. The high temperature and humidity of the steam can soften the fiber filaments and weaken the internal stress of the fiber filaments, so as to facilitate the subsequent twisting or adding of the fiber yarn 8 and reduce the risk of fiber breakage.

[0054] Reference Figure 1 and Figure 2 On the one hand, the guide wheels 312 guide the fiber yarn 8 to facilitate its transport. On the other hand, the guide wheels 312 constrain the fiber yarn 8 and can adjust the tension of the fiber yarn 8. Thus, when the first fixing component 41 applies untwisting or twisting action to the fiber yarn 8, the untwisting effect of the fiber yarn 8 can be improved.

[0055] 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 fix the position of the fiber yarn 8 relative to each other.

[0056] Reference Figure 3 and Figure 4 The reciprocating drive mechanism 5 drives the sliding member 413 to perform linear reciprocating motion, periodically untwisting or 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 is twisted closer to the guide mechanism and untwisted on the side away from the guide mechanism. Conversely, when the reciprocating drive mechanism 5 drives the sliding member 413 closer to the cylinder, the fiber yarn 8 is untwisted closer to the guide mechanism and twisted on the side away from the guide mechanism, returning the fiber yarn 8 to its original state.

[0057] Reference Figure 3 and Figure 4When the fiber yarn 8 is untwisted in the coating fluid, several fibers in the fiber yarn 8 separate from each other, and the diameter of the fiber yarn 8 increases, 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. During the process of twisting the fiber yarn 8 back to its original state, several fibers squeeze each other to squeeze out excess coating fluid from the fiber yarn 8, so that the coating fluid is coated on the surface of the fibers, improving the coating effect of the coating fluid on the fiber yarn 8. Example 2

[0058] The difference between Example 2 and Example 1 is as follows: Reference Figure 5 The coating apparatus also includes a flow turbulence mechanism 7, which is fixed on the frame 1 and its main body is immersed in the coating fluid in the barrel 6. The flow turbulence mechanism 7 is used to drive the coating fluid to flow in the barrel 6.

[0059] In this embodiment, the flow-disrupting mechanism 7 includes a flow-disrupting motor 71, a flow-disrupting rod 72, and a flow-disrupting element 73. The flow-disrupting motor 71 is fixedly mounted on the frame 1. The flow-disrupting rod 72 is vertically arranged, with one end fixedly connected to the drive end of the flow-disrupting motor 71 and the other end fixedly connected to the flow-disrupting element 73. The flow-disrupting element 73 is immersed in the coating fluid in the barrel 6, and a clearance distance is provided between the flow-disrupting element 73 and the first fixing member 412 and the fiber yarn 8. The outer periphery of the flow-disrupting element 73 is provided with several blades, so that when the flow-disrupting element 73 rotates, it can force the coating fluid to flow in the barrel 6.

[0060] The implementation principle of a coating device according to an embodiment of this application is as follows: Reference Figure 5 During the untwisting or twisting process of the fiber yarn 8 in the coating fluid, the turbulence motor 71 drives the turbulence element 73 to rotate, thereby causing the coating fluid to flow in the barrel 6. This ensures that the coating fluid continuously flows towards the location of the fiber yarn 8, allowing the fibers 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

[0061] The difference between this embodiment 3 and embodiment 1 is that the specific structures of the first fixed component 41 and the reciprocating drive mechanism 5 are different.

[0062] Reference Figures 6 to 8 In this embodiment, the first fixing component 41 includes a second mounting base 415, a bearing 416, a fixing sleeve 417, and a clamping component 418.

[0063] Reference Figure 8 and Figure 9The second mounting base 415 is fixed on the frame 1. The second mounting base 415 has a first mounting hole 4151, and the bearing 416 is installed in the first mounting hole 4151. The fixing sleeve 417 is set in the inner ring of the bearing 416, and the fiber yarn 8 passes through the internal cavity of the fixing sleeve 417.

[0064] Reference Figures 9 to 11 The fixing sleeve 417 has a plurality of second mounting holes 4174 arranged in a ring. In this embodiment, the fixing sleeve 417 is divided into a first component 4171 and a second component 4172 along the plane containing the plurality of second mounting holes 4174. The first component 4171 and the second component 4172 are bolted together by a connecting ear plate 4173 to facilitate the installation of the clamping assembly 418 into the second mounting holes 4174.

[0065] Reference Figure 10 and Figure 11 Two clamping components 418 are provided, and the main bodies of the two clamping components 418 are symmetrically arranged in the internal cavity of the fixed sleeve 417. The fiber yarn 8 passes through the gap between the two clamping components 418. The clamping assembly 418 includes a clamping horizontal bar 4181, a clamping vertical bar 4182, a clamping roller 4184, and a second elastic member 4183. The clamping horizontal bar 4181 is disposed in the internal cavity of the fixed sleeve 417. Two clamping vertical bars 4182 are provided, and the two clamping vertical bars 4182 are fixed at both ends of the clamping horizontal bar 4181. The clamping vertical bars 4182 pass through the second mounting hole 4174 and are slidably connected to the fixed sleeve 417. One end of the second elastic member 4183 abuts against the inner side wall of the fixed sleeve 417, and the other end of the second elastic member 4183 abuts against the clamping horizontal bar 4181. The second elastic member 4183 forces the clamping vertical bar 4182 to approach the central axis of the fixed sleeve 417. The clamping roller 4184 is disposed 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 move closer to each other, and the two clamping rollers 4184 are used to clamp the fiber yarn 8.

[0066] Reference Figure 11 The clamping roller 4184 includes a rigid roller 41841 and a flexible member 41842. The two ends of the rigid roller 41841 are rotatably connected to the clamping vertical rod 4182. The flexible member 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 member 41842 is used to abut against the fiber yarn 8.

[0067] Reference Figure 7 and Figure 8The reciprocating drive mechanism 5 includes a motor 53 and a pulley 54. The motor 53 is fixed on the frame 1, and the pulley 54 is sleeved on the drive end of the motor 53 and the fixed sleeve 417. The reciprocating drive mechanism 5 drives the fixed sleeve 417 to rotate periodically. That is, the reciprocating drive mechanism 5 drives the fixed sleeve 417 to rotate periodically forward or backward, so that the fiber yarn 8 is periodically untwisted or twisted.

[0068] The implementation principle of a coating device according to an embodiment of this application is as follows: When the fiber yarn 8 is inserted into the internal cavity 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 element 41842 will exert a force on the fiber yarn 8 under the action of its own elastic deformation, so as to improve the clamping effect of the two clamping rollers 4184 on the fiber yarn 8.

[0069] 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.

[0070] Meanwhile, 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 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 be smoothly passed through the first fixed component 41.

[0071] 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 end of the first fixing component (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 reciprocating drive mechanism (5) is connected to the first fixing component (41); the reciprocating drive mechanism (5) drives the first fixing component (41) to perform a periodic untwisting or twisting action on the fiber yarn (8) so that the coating fluid is coated on the fiber filament surface of the fiber yarn (8).

2. The coating device according to claim 1, characterized in that: The first fixing assembly (41) further comprises a first mounting seat (411), a fixing member (412) and a sliding member (413); the first mounting seat (411) is fixedly mounted 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); a gap is provided between the sliding member (413) and the fixing member (412) for the fiber yarn (8) to pass through, 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; the sliding direction of the sliding member (413) is arranged perpendicular to the conveying direction of the fiber yarn (8).

3. The coating device according to claim 2, characterized in that: The fixing member (412) is provided with a positioning groove (4121), the positioning groove (4121) being used to accommodate the fiber yarn (8), and the groove depth of the positioning groove (4121) being smaller than the diameter of the fiber yarn (8).

4. The coating device according to claim 2, characterized in that: The first fixing assembly (41) further comprises a first elastic member (414), one end of the first elastic member (414) being fixedly mounted on the first mounting seat (411), and the other end of the first elastic member (414) being abutted against the sliding member (413), so that the first elastic member (414) forces the sliding member (413) to approach the fixing member (412).

5. The coating device according to claim 1, characterized in that: The first fixing assembly (41) comprises a second mounting seat (415), a bearing (416), a fixing sleeve (417) and a clamping assembly (418); the second mounting seat (415) is fixedly mounted on the frame (1); the second mounting seat (415) is provided with a first mounting hole, and the bearing (416) is mounted in the first mounting hole; the fixing sleeve (417) is arranged on the inner ring of the bearing (416); the fiber yarn (8) is passed through the inner chamber of the fixing sleeve (417); the fixing sleeve (417) is provided with a fixing sleeve (418); 7) a plurality of second mounting holes (4174) are provided, and the plurality of second mounting holes (4174) are arranged in a ring shape; two clamping assemblies (418) are provided, and the main bodies of the two clamping assemblies (418) are symmetrically arranged in the internal chamber of the fixed sleeve (417), and the fiber yarn (8) is passed through the gap between the two clamping assemblies (418); the clamping assembly (418) comprises 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 two clamping vertical bars (4182) are provided. 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 holes (4174). The clamping vertical bars (4182) are slidably connected to the fixed sleeve (417), and one end of the second elastic member (4183) is in contact with the inner side wall of the fixed sleeve (417). The second elastic member (4183) is 3) is in contact with the clamping crossbar (4181); the clamping roller (4184) is arranged between the two clamping vertical bars (4182), and the clamping roller (4184) is rotatably connected to the ends of the clamping vertical bars (4182); the two clamping rollers (4184) always tend to approach each other under the action of the second elastic member (4183), and the two clamping rollers (4184) are used to clamp the fiber yarn (8); the reciprocating drive mechanism (5) drives the fixed sleeve (417) to rotate periodically.

6. The coating device according to claim 5, characterized in that: The clamping roller (4184) comprises a rigid roller (41841) and a flexible member (41842), wherein the flexible member (41842) is sleeved on the outer circumference of the rigid roller (41841), the end of the rigid roller (41841) is rotatably connected to the clamping vertical rod (4182), and the flexible member (41842) is used to abut against the fiber yarn (8).

7. The coating device according to claim 1, characterized in that: The machine also comprises a pretreatment mechanism (2), the pretreatment mechanism (2) being fixedly mounted on the material inlet 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) comprising 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).

8. The coating device according to claim 7, characterized in that: The invention also comprises a guide mechanism (3), the guide mechanism (3) being fixedly mounted on the frame (1), and the guide mechanism (3) being arranged between the pretreatment mechanism (2) and the fixing mechanism (4); along the conveying direction of the fiber yarn (8), the guide mechanism (3) comprises a plurality of guide assemblies (31), the guide assemblies (31) comprising a guide rod (311) and a guide wheel (312), one end of the guide rod (311) being fixedly connected to the frame (1), and the other end of the guide rod (311) being fixedly mounted on the guide wheel (312); and the fiber yarn (8) is sequentially wound around the plurality of guide wheels (312).

9. The coating device according to claim 1, characterized in that: It 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), and the flow disturbance mechanism (7) is used to drive the coating fluid to flow in the barrel (6).

10. The coating device according to claim 9, characterized in that: The spoiler mechanism (7) comprises a spoiler motor (71), a spoiler rod (72) and a spoiler member (73); the spoiler motor (71) is fixedly mounted on the frame (1); one end of the spoiler rod (72) is fixedly connected to a driving end of the spoiler motor (71); the other end of the spoiler rod (72) is fixedly connected to the spoiler member (73); the spoiler member (73) is immersed in the coating fluid in the barrel (6); and the spoiler member (73) drives the coating fluid in the barrel (6) to flow toward the fiber yarn (8).

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