Washing-free dyeing processing device for polyester production

Abstract

The invention discloses washing-free dyeing treatment equipment for polyester production. The washing-free dyeing treatment equipment comprises a silk feeding assembly, a dyeing box, a removing box, a heating box and a cooling plate, wherein the silk feeding assembly is used for feeding silk threads into the dyeing box; the dyeing box is used for dyeing the silk threads at a high speed; during dyeing, silk threads penetrate through the dyeing cylinder at a high speed, dyeing liquid enters the dyeing cylinder through the first liquid inlet and the second liquid inlet when the silk threads pass through the dyeing cylinder, the flowing direction of the dyeing liquid in the dyeing cylinder is ensured to be the same as the running direction of the silk threads by controlling the flowing speed of the first liquid inlet and the second liquid inlet, and the silk threads can be ensured to suspend in the dyeing liquid by simultaneously feeding liquid from two ends. And meanwhile, redundant staining fluid on the surfaces of the silk threads can be removed in a non-contact mode.

Description

Technical Field

[0001] The invention belongs to the field of polyester yarn processing, in particular to a wash-free dyeing processing device for polyester production. Background Art

[0002] Colored polyester yarn is suitable for producing fabrics with patterns such as stripes, plaids, and jacquards. Different colored yarns can be used to create patterns through textile processing. The process involves dyeing polyester filament or staple yarn at the yarn stage, and then using the dyed yarn for weaving or knitting.

[0003] Traditional polyester yarn dyeing requires multiple cleaning processes, resulting in numerous problems such as water waste and environmental pollution. A search revealed a wash-free dyeing technology for polyester fabrics proposed in CN115045119B. This technology addresses the existing problem of polyester fabrics requiring multiple cleaning steps after dyeing, resulting in high water consumption and the generation of large amounts of wastewater. The inventors identified wash-free dyeing processing equipment as a breakthrough. A search revealed a chemical fiber spinning and texturizing system proposed in CN111996634B. This system performs dyeing before the heating chamber, spray-dyeing from the bottom. After spray-dyeing, residual dye droplets remain on the surface of the yarn. If not promptly addressed, these can contaminate the interior of the subsequent heating chamber and the surface of the yarn, ultimately leading to yarn breakage and powder loss during false twisting, impacting yarn quality. Another example is CN110004622A, which uses a dehydrating sponge contact method to remove excess dye from the surface. However, this can easily cause lint on high-speed yarns. Summary of the Invention

[0004] In order to solve the above technical problems, the inventors have come up with the technical solution of the present invention through practice and summary. The present invention adopts the following technical solution:

[0005] A wash-free dyeing treatment device for polyester production, comprising:

[0006] The silk thread feeding component feeds the silk thread into the dyeing box;

[0007] The dyeing box is provided with a silk inlet and a silk outlet. The area between the silk inlet and the silk outlet is the dyeing area. A dyeing drum is installed in the dyeing area. The end of the dyeing drum facing the silk thread is provided with a liquid inlet 1, and the end along the silk thread is provided with a liquid inlet 2. The flow rate of the liquid inlet 1 is greater than the flow rate of the liquid inlet 2. The top of the dyeing drum is provided with a liquid outlet.

[0008] A stripping box is provided with a stripping tube installed inside the stripping box, stripping holes are evenly distributed on the surface of the stripping tube, and the stripping holes are arranged in the opposite direction of the silk thread running. A return pipe is arranged at the bottom of the stripping box, and the return pipe is connected to the dyeing box;

[0009] A heating box is provided with heating pipes, a smoking pipe is provided on the top of the heating pipe, and a purifier is connected to the smoking pipe;

[0010] The cooling plate has a U-shaped cooling groove on its bottom surface, and the cooling groove cools the wire.

[0011] In a more preferred solution, a dyeing tube is installed in the dyeing cylinder, a gap is reserved between the middle outer wall of the dyeing tube and the middle inner wall of the dyeing cylinder, and several groups of dyeing holes are distributed on the dyeing tube, and the dyeing holes are arranged along the direction of the silk thread.

[0012] In a more preferred solution, the dyeing tube is equipped with an inlet tap sleeve and an outlet tap sleeve. The end of the dyeing tube close to the inlet tap sleeve is a bell mouth 1 with a gradually decreasing inner diameter, and the end close to the outlet tap sleeve is a bell mouth 2 with a gradually increasing inner diameter. The thickness of the inlet tap sleeve close to the dyeing tube gradually decreases and is partially inserted in the bell mouth 1 to form a liquid inlet 1. The thickness of the outlet tap sleeve close to the dyeing tube gradually increases and is partially inserted in the bell mouth 2 to form a liquid inlet 2.

[0013] In a more preferred solution, outer sides of the inlet tap sleeve and the outlet tap sleeve are both provided with outer edge bodies, and mounting holes are distributed on the outer edge bodies.

[0014] In a more optimal solution, the smoking tube is an annular structure with a smoke inlet on the inside, which is arranged toward the silk thread. The smoke inlet is provided with a discharge ring plate and a ground ring plate. The discharge ring plate is a conical structure and gradually approaches the ground ring plate along the running direction of the silk thread.

[0015] In a more preferred embodiment, the device further comprises a false twister, an oiling assembly and a shuttle reel, wherein the false twister, the oiling assembly and the shuttle reel are sequentially arranged on one side of the cooling plate along the running direction of the silk thread;

[0016] The false twister includes a chassis, on which a plurality of false twist components, a transmission wheel and a driver are installed;

[0017] The false twist assembly includes a replacement disc, a disconnector, and a drive member. The replacement disc is rotatably mounted on the chassis. The output end of the drive member drives the replacement disc to rotate at a set angle. At least two groups of replacement shafts are distributed on the replacement disc, and multiple false twist discs are distributed on the two groups of replacement shafts. The disconnector is arranged between the replacement shaft and the transmission wheel.

[0018] The output end of the driver is connected to one of the transmission wheels, and the transmission wheels are connected to each other through a synchronous belt.

[0019] In a more optimal solution, the disconnecting part includes a clamping part distributed on both sides of the corresponding replacement shaft, one end of the clamping part is rotatably installed on the replacement disk, a toothed surface is provided at the rotation node of the clamping part, a sliding push-pull rack is distributed on the replacement disk, the push-pull rack and the toothed surface are engaged with each other, a center ring is provided in the middle of the replacement disk, an electromagnetic part and an elastic part are distributed on the center ring, the elastic part is connected to one end of the push-pull rack, and the electromagnetic part is used to pull the push-pull rack after being energized.

[0020] In a more preferred solution, the clamping member includes a clamping arc outer plate, an elastic member and a clamping arc inner plate are installed on the inner side of the clamping arc outer plate, and friction rotors are distributed on the clamping arc inner plate.

[0021] In a more preferred solution, a central axis is distributed in the middle of the replacement disk, a top disk is installed on the top of the central axis, the replacement shaft includes a mounting shaft and a connecting piece, one end of the mounting shaft is axially sleeved on the top disk or the replacement disk and is rotatably arranged relative to the corresponding disk, the other end of the mounting shaft is connected through a connecting piece, the false twist disk is sleeved on the mounting shaft and pressure plates are installed on the upper and lower sides of the false twist disk, and the pressure plates are used to fix and press the false twist disk.

[0022] In a more preferred solution, the connector includes a center rod, with connecting sleeves installed at both ends of the center rod. The connecting sleeves slide axially on the outside of the center rod, and the ends of the connecting sleeves and the ends of the mounting shaft are axially socket-fitted. The bottom of the connecting sleeve is provided with an installation compartment, and elastic deformable parts are distributed in the installation compartment. Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. After dyeing, the silk thread passes through the removal tube at high speed. When passing through the removal tube, since the removal holes are arranged in the opposite direction of the silk thread running, the high-speed silk thread will effectively remove the dyeing liquid on the surface, avoiding uneven residue on the surface of the silk thread and the problem of damage to the silk thread caused by traditional contact removal of dyeing liquid. The removed dyeing liquid will then return to the dyeing box through the reflux pipe, realizing the return of the dyeing liquid.

[0024] 2. When dyeing, the silk thread passes through the dyeing drum at high speed. When passing through the dyeing drum, the dyeing liquid enters the dyeing drum through the liquid inlet 1 and the liquid inlet 2, and by controlling the flow rate of the liquid inlet 1 and the liquid inlet 2, it is ensured that the dyeing liquid in the dyeing drum flows in the same direction as the running direction of the silk thread. By simultaneously feeding liquid at both ends, it is ensured that the silk thread is suspended in the dyeing liquid, which can ensure that the silk thread passes quickly.

[0025] 3. In the present invention, the silk thread is heated in a heating box, which generates smoke. A smoking pipe is placed on the top to collect the smoke and prevent it from overflowing. However, based on years of production experience, the inventors have found that the negative pressure of existing smoking pipes is not efficient enough in collecting smoke, and some problems such as powder loss and lint will occur during subsequent false twisting. After research, it was found that since the smoke also contains carbonized oil, oligomers, etc., these components will instantly solidify on the surface of the silk thread after the silk thread comes out of the heating box, thereby completing the cleaning of the silk thread surface and solving the problem of lint. In this case, a discharge ring plate and a ground ring plate are used on the smoking pipe, and a high voltage is applied between the discharge ring plate and the ground ring plate to achieve the separation of smoke and silk thread.

[0026] 4. The present invention performs false twisting, oiling, and winding operations after heating. During false twisting, because conventional false twist discs are all mounted on the same false twist shaft, they need to be replaced promptly after their service life has expired. Conventional replacement requires stopping the machine and removing the entire false twist shaft to replace the corresponding false twist disc, which is a complex operation. The inventors have arranged a replacement disc on the chassis. When a false twist disc wears and needs to be replaced, a disconnector separates the drive wheel and the replacement shaft. The driver drives the replacement disc to rotate a set angle, and then the corresponding new replacement shaft is switched to the old replacement shaft. The disconnector is then reconnected and driven to the new replacement shaft, completing the online, non-stop replacement of the false twist disc. The operation is simple. At this time, the false twist disc on the old replacement shaft is replaced in a targeted manner. This reciprocating cycle ensures long-term, non-stop operation of the false twist assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is the position distribution diagram of the dyeing box and the stripping box of the present invention;

[0029] Figure 3 Schematic diagram of the structure of the dyeing tube of the present invention;

[0030] Figure 4 It is a diagram of the internal structure of the removal box of the present invention;

[0031] Figure 5 for Figure 1 A partial enlarged view of point A in the middle;

[0032] Figure 6 This is a diagram of the internal structure of the smoking box of the present invention;

[0033] Figure 7 It is a schematic structural diagram of the cooling plate of the present invention;

[0034] Figure 8 、 Figure 9Schematic diagrams of the structure of the false twister of the present invention from two different perspectives;

[0035] Figure 10 It is a schematic diagram of the structure of the replacement disk of the present invention;

[0036] Figure 11 A bottom view of the replacement tray of the present invention;

[0037] Figure 12 for Figure 11 Schematic diagram of the structure of the interrupter;

[0038] Figure 13 Schematic diagram of the structure of the connecting piece of the present invention.

[0039] In the figure: 10, upper thread assembly; 20, dyeing box; 21, dyeing cylinder; 211, dyeing tube; 212, dipping hole; 213, inlet tap sleeve; 214, outlet tap sleeve; 215, outer edge body; 22, liquid inlet 1; 23, liquid inlet 2; 24, liquid outlet; 30, stripping box; 31, stripping tube; 32, stripping hole; 33, return pipe; 40, heating box; 41, heating tube; 42, smoking pipe; 421, discharge ring plate; 422, ground ring plate; 43, purifier; 50, cooling plate; 51, cooling trough; 60, false twister; 61, chassis; 62, transmission wheel; 63, drive Device; 64, replacement disk; 641, center shaft; 642, top disk; 643, installation shaft; 644, connecting part; 6441, center rod; 6442, connecting sleeve; 6443, elastic deformation part; 645, pressure plate; 65, disconnect part; 651, clamping part; 6511, clamping arc outer plate; 6512, elastic part; 6513, clamping arc inner plate; 6514, friction rotor; 652, push-pull rack; 653, center ring; 654, elastic part; 655, electromagnetic part; 66, driving part; 67, false twist disk; 68, replacement shaft; 70, oiling assembly; 80, shuttle reel. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0042] Example 1

[0043] like Figure 1 As shown, a wash-free dyeing treatment equipment for polyester production includes:

[0044] The upper silk assembly 10 feeds the silk thread into the dyeing box 20. The upper silk assembly 10 includes a raw silk rack and a raw silk roller installed on the raw silk rack. The silk thread enters the dyeing box 20 through the roller group;

[0045] like Figure 2 、 3 As shown, a dyeing box 20 is provided with a silk inlet and a silk outlet. The area between the silk inlet and the silk outlet is a dyeing area. A dyeing drum 21 is installed in the dyeing area. The end of the dyeing drum 21 facing the silk thread is provided with a liquid inlet 1 22, and the end along the silk thread is provided with a liquid inlet 23. The flow rate of the liquid inlet 1 22 is greater than the flow rate of the liquid inlet 23. A liquid outlet 24 is provided on the top of the dyeing drum 21.

[0046] like Figure 4 As shown, a stripping box 30 is provided with a stripping tube 31 installed inside the stripping box 30. Stripping holes 32 are evenly distributed on the surface of the stripping tube 31. The stripping holes 32 are arranged in the opposite direction of the silk thread running. A return pipe 33 is arranged at the bottom of the stripping box 30. The return pipe 33 is connected to the dyeing box 20.

[0047] like Figure 5 As shown, a heating box 40 is provided with a heating tube 41 in the heating box 40 , a smoking tube 42 is provided on the top of the heating tube 41 , and a purifier 43 is externally connected to the smoking tube 42 ;

[0048] like Figure 7 As shown, a cooling plate 50 has a U-shaped cooling groove 51 distributed on the bottom surface of the cooling plate 50, and the cooling groove 51 cools the wire.

[0049] During implementation, the silk thread enters the dyeing box 20 through the roller, and then enters the dyeing drum 21 through the silk inlet. The dyeing liquid enters the dyeing drum 21 through the liquid inlet 1 22 and the liquid inlet 2 23. The silk thread is dyed. The dyed silk thread enters the removal tube 31, and the excess dyeing liquid on the surface of the silk thread is removed through the removal hole 32. The dyeing liquid enters the removal box 30 (a plurality of removal boxes 30 can be provided as needed) through the removal hole 32. The dyeing liquid enters the dyeing box 20 through the reflux pipe 33. The silk thread with the excess dyeing liquid removed from the surface enters the heating box 40 to complete the heating treatment. The heated silk thread is then cooled by the cooling plate 50. It should be noted here that a hollow conduit can be arranged between the silk outlet and the removal box 30. The hollow conduit is used to receive the dyeing liquid to prevent the dyeing liquid from falling and contaminating the workshop.

[0050] Example 2

[0051] In the device, Figure 2 、 Figure 3 As shown, a dyeing tube 211 is installed in the dyeing cylinder 21, and a gap is reserved between the middle outer wall of the dyeing tube 211 and the middle inner wall of the dyeing cylinder 21. Several groups of dyeing holes 212 are distributed on the dyeing tube 211, and the dyeing holes 212 are arranged along the direction of the silk thread running.

[0052] The dyeing tube 21 is provided with an inlet tap sleeve 213 and an outlet tap sleeve 214. The end of the dyeing tube 211 close to the inlet tap sleeve 213 is a bell mouth 1 with a gradually decreasing inner diameter, and the end close to the outlet tap sleeve 214 is a bell mouth 2 with a gradually increasing inner diameter. The thickness of the inlet tap sleeve 213 close to the dyeing tube 211 gradually decreases and is partially inserted into the bell mouth 1 to form a liquid inlet 1 22. The thickness of the outlet tap sleeve 214 close to the dyeing tube 211 gradually increases and is partially inserted into the bell mouth 2 to form a liquid inlet 23.

[0053] The outer sides of the inlet tap sleeve 213 and the outlet tap sleeve 214 are both provided with an outer edge body 215 , and mounting holes are distributed on the outer edge body 215 .

[0054] In order to achieve high-speed dyeing, the silk thread enters the dyeing tube 211, and the dyeing liquid enters the dyeing tube 211 through the liquid inlet 1 22 and the liquid inlet 2 23. By controlling the flow of the liquid inlet 1 22 and the liquid inlet 2 23, the flow of the liquid inlet 1 22 is about twice the flow of the liquid inlet 2 23. Firstly, the high-speed running speed of the silk thread can be guaranteed, so that the running speed of the silk thread is not reduced; secondly, the liquid entering from the liquid inlet 2 23 can reduce the serious overflow of the dyeing liquid. If it only enters from the liquid inlet 1 22, the dyeing liquid will be seriously splashed and overflowed, so that air will rush into the dyeing tube 211, and uniform dyeing cannot be completed. The entry of air will affect the high-speed operation of the silk thread; thirdly, the silk thread can be suspended in the dyeing tube 211 by using the liquid inlet 1 22 and the liquid inlet 2 23.

[0055] Example 3

[0056] In the device, Figure 5 、 Figure 6 As shown, the smoking pipe 42 is an annular structure with a smoke inlet on the inner side, which is arranged toward the silk thread. The smoke inlet is provided with a discharge ring plate 421 and a ground ring plate 422. The discharge ring plate 421 is a conical structure and gradually approaches the ground ring plate 422 along the running direction of the silk thread.

[0057] Since the silk thread can be heated to 180-210°C in the heating box 40, smoke will be generated, which will affect the internal environment of the workshop. The carbonized oil and sublimated oligomer components in the smoke will instantly condense on the surface of the silk thread after the silk thread comes out of the heating box 40, and problems of hair and powder loss will occur during subsequent false twisting. After coming out of the heating tube 41, the smoke will be introduced into the purifier 43 by the smoking tube 42. When the smoke passes through the smoking tube 42, a high voltage is applied between the discharge ring plate 421 and the ground ring plate 422 on the smoking tube 42, and the gas is charged by the high voltage. After charging, the smoke can be separated from the silk thread by the negative pressure external introduction. The smoking tube 42 is provided with a dust collecting plate and an explosion-washing structure, and the charged smoke is collected by the dust collecting electrode. The dust collecting electrode is cleaned by the explosion-washing structure every set time period and finally enters the purifier 43.

[0058] Example 4

[0059] In the device, Figure 1 As shown, the device further includes a false twister 60, an oiling assembly 70 and a shuttle reel 80, which are sequentially arranged on one side of the cooling plate 50 along the running direction of the silk thread.

[0060] The silk thread passes through the false twister 60, the oiling assembly 70, and the shuttle winder 80, and is subjected to false twisting, oiling, and winding operations in sequence.

[0061] like Figures 8 and 9 As shown, the false twister 60 includes a chassis 61, on which are mounted a plurality of false twisting components, a transmission wheel 62, and a driver 63;

[0062] The false twist assembly includes a replacement disc 64, a disconnecting member 65, and a driving member 66. The replacement disc 64 is rotatably mounted on the chassis 61. The output end of the driving member 66 drives the replacement disc 64 to rotate a set angle. At least two sets of replacement shafts 68 are distributed on the replacement disc 64. Multiple false twist discs 67 are distributed on the two sets of replacement shafts 68. The disconnecting member 65 is arranged between the replacement shafts 68 and the transmission wheel 62.

[0063] The output end of the driver 63 is connected to one of the transmission wheels 62 , and the transmission wheels 62 are connected to each other via a synchronous belt.

[0064] The driver 63 drives the transmission wheel 62 to rotate and realizes synchronous movement through the synchronous belt. The false twist disk 67 performs false twisting on the silk thread. Since the false twist disk 67 is made of polyurethane, it will also wear out. However, after wear, it needs to be replaced. The corresponding disconnector 65 disconnects the corresponding replacement shaft 68. The driving part 66 drives the replacement shaft 68 of the replacement disk 64 to rotate the set angle. When the new replacement shaft 68 is turned to the old replacement shaft 68, the disconnector 65 will reconnect the new replacement shaft 68 to the transmission wheel 62 to realize online replacement operation.

[0065] In order to achieve automatic disconnection and reconnection during high-speed transmission, such as Figure 10 、 11 As shown in Figure 12, the disconnect member 65 includes a clamping member 651 distributed on both sides of the corresponding replacement shaft 68, one end of the clamping member 651 is rotatably installed on the replacement disk 64, and a toothed surface is provided at the rotation node of the clamping member 651. A sliding push-pull rack 652 is distributed on the replacement disk 64, and the push-pull rack 652 and the toothed surface are engaged with each other. A center ring 653 is provided in the middle of the replacement disk 64, and an electromagnetic member 655 and an elastic member 654 are distributed on the center ring 653. The elastic member 654 is connected to one end of the push-pull rack 652, and the electromagnetic member 655 is used to pull the push-pull rack 652 after being energized.

[0066] The clamping member 651 includes a clamping arc outer plate 6511 , an elastic member 6512 and a clamping arc inner plate 6513 are installed on the inner side of the clamping arc outer plate 6511 , and a friction rotor 6514 is distributed on the clamping arc inner plate 6513 .

[0067] In specific implementation, when connecting, the electromagnetic component 655 is energized to adsorb the push-pull rack 652, compress the elastic component 654, and make the clamping component 651 rotate inward to clamp and fix the replacement shaft 68 and the transmission wheel 62, and the friction rotor 6514 is used to press and fix the transmission wheel 62 and the replacement shaft 68, and then the friction rotor 6514 (friction shape) is rotated by the extrusion force, thereby realizing the synchronous transmission through the transmission wheel 62 and the replacement shaft 68. When disconnection is required, the electromagnetic component 655 is powered off. After power failure, the elastic component 654 pushes the push-pull rack 652 in the opposite direction, and the clamping component 651 rotates outward to complete the loosening of the replacement shaft 68 and the transmission wheel 62. At the same time, the final position will not interfere with the transmission wheel 62.

[0068] Example 5

[0069] In the device, Figure 10 、 Figure 13 As shown, a central shaft 641 is distributed in the middle of the replacement disk 64, and a top disk 642 is installed on the top of the central shaft 641. The replacement shaft 68 includes a mounting shaft 643 and a connecting piece 644. One end of the mounting shaft 643 is axially sleeved on the top disk 642 or the replacement disk 64 and is rotatably arranged relative to the corresponding disk. The other end of the mounting shaft 643 is connected by a connecting piece 644. The false twist disk 67 is sleeved on the mounting shaft 643 and pressure plates 645 are installed on the upper and lower sides of the false twist disk 67. The pressure plate 645 is used to fix and press the false twist disk 67.

[0070] The connecting member 644 includes a center rod 6441, and connecting sleeves 6442 are respectively installed at both ends of the center rod 6441. The connecting sleeves 6442 slide axially on the outside of the center rod 6441. The end of the connecting sleeve 6442 and the end of the installation shaft 643 are axially socket-fitted. An installation compartment is provided at the bottom of the connecting sleeve 6442, and elastic deformation parts 6443 are distributed in the installation compartment.

[0071] During specific implementation, the connecting sleeve 6442 is squeezed toward the middle of the center rod 6441, compressing the internal elastic deformation part 6443, so that the connecting sleeve 6442 and the mounting shaft 643 (the two will not rotate relative to each other) are separated, and then the corresponding false twist disk 67 is replaced, and the upper and lower sets of pressure plates 645 are used to fix the false twist disk 67.

[0072] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacement may be a replacement of a portion of a structure, device, or method step, or it may be a complete technical solution. Any equivalent replacement or modification based on the technical solution and inventive concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A wash-free dyeing treatment equipment for polyester production, characterized in that: include: The upper silk assembly (10) feeds the silk thread into the dyeing box (20); A dyeing box (20) is provided with a silk inlet and a silk outlet, the area between the silk inlet and the silk outlet is a dyeing area, a dyeing drum (21) is installed in the dyeing area, the dyeing drum (21) is provided with a first liquid inlet (22) at one end facing the silk thread, and a second liquid inlet (23) at the other end along the silk thread, the flow rate of the first liquid inlet (22) is greater than the flow rate of the second liquid inlet (23), and a liquid outlet (24) is provided at the top of the dyeing drum (21); A stripping box (30), wherein a stripping tube (31) is installed inside the stripping box (30), stripping holes (32) are evenly distributed on the surface of the stripping tube (31), and the stripping holes (32) are arranged in the opposite direction of the running direction of the silk thread. A return pipe (33) is arranged at the bottom of the stripping box (30), and the return pipe (33) is connected to the dyeing box (20); A heating box (40), wherein a heating tube (41) is distributed in the heating box (40), a smoking tube (42) is arranged on the top of the heating tube (41), and a purifier (43) is externally connected to the smoking tube (42); A cooling plate (50) is provided with a U-shaped cooling groove (51) on the bottom surface of the cooling plate (50), and the cooling groove (51) cools the wire.

2. The wash-free dyeing processing device for polyester production according to claim 1, characterized in that: A dyeing tube (211) is installed in the dyeing cylinder (21), a gap is reserved between the middle outer wall of the dyeing tube (211) and the middle inner wall of the dyeing cylinder (21), and a plurality of groups of dyeing holes (212) are distributed on the dyeing tube (211), and the dyeing holes (212) are arranged along the direction of the silk thread running.

3. The wash-free dyeing processing device for polyester production according to claim 2, characterized in that: The dyeing tube (21) is provided with an inlet tap sleeve (213) and an outlet tap sleeve (214). The end of the dyeing tube (211) close to the inlet tap sleeve (213) is a bell mouth 1 with a gradually decreasing inner diameter, and the end close to the outlet tap sleeve (214) is a bell mouth 2 with a gradually increasing inner diameter. The end of the inlet tap sleeve (213) close to the dyeing tube (211) has a gradually decreasing thickness and is partially inserted into the bell mouth 1 to form a liquid inlet 1 (22). The end of the outlet tap sleeve (214) close to the dyeing tube (211) has a gradually increasing thickness and is partially inserted into the bell mouth 2 to form a liquid inlet 2 (23).

4. The wash-free dyeing processing device for polyester production according to claim 3, characterized in that: The outer sides of the inlet tap sleeve (213) and the outlet tap sleeve (214) are both provided with an outer edge body (215), and mounting holes are distributed on the outer edge body (215).

5. The wash-free dyeing processing device for polyester production according to claim 4, characterized in that: The smoking pipe (42) is an annular structure with a smoke inlet on the inner side. The smoke inlet is arranged toward the silk thread. A discharge ring plate (421) and a ground ring plate (422) are distributed on the smoke inlet. The discharge ring plate (421) is a conical structure and gradually approaches the ground ring plate (422) along the running direction of the silk thread.

6. A wash-free dyeing processing device for polyester production according to any one of claims 1 to 5, characterized in that: The device further comprises a false twister (60), an oiling assembly (70) and a shuttle reel (80), wherein the false twister (60), the oiling assembly (70) and the shuttle reel (80) are sequentially arranged on one side of the cooling plate (50) along the running direction of the silk thread; The false twister (60) includes a chassis (61), on which a plurality of false twist components, a transmission wheel (62), and a driver (63) are mounted; The false twist assembly includes a replacement disk (64), a disconnecting member (65) and a driving member (66), wherein the replacement disk (64) is rotatably mounted on the chassis (61), and the output end of the driving member (66) drives the replacement disk (64) to rotate a set angle, at least two groups of replacement shafts (68) are distributed on the replacement disk (64), and a plurality of false twist disks (67) are distributed on the two groups of replacement shafts (68), and the disconnecting member (65) is arranged between the replacement shaft (68) and the transmission wheel (62); The output end of the driver (63) is connected to one of the transmission wheels (62), and the transmission wheels (62) are connected to each other via a synchronous belt.

7. The wash-free dyeing processing device for polyester production according to claim 6, characterized in that: The disconnecting member (65) includes a clamping member (651) distributed on both sides of the corresponding replacement shaft (68), one end of the clamping member (651) is rotatably mounted on the replacement disk (64), a toothed surface is arranged at the rotation node of the clamping member (651), a sliding push-pull rack (652) is distributed on the replacement disk (64), the push-pull rack (652) and the toothed surface are engaged with each other, a center ring (653) is distributed in the middle of the replacement disk (64), an electromagnetic member (655) and an elastic member (654) are distributed on the center ring (653), the elastic member (654) is connected to one end of the push-pull rack (652), and the electromagnetic member (655) is used to pull the push-pull rack (652) after being energized.

8. The wash-free dyeing processing device for polyester production according to claim 7, characterized in that: The clamping member (651) comprises a clamping arc outer plate (6511), an elastic member (6512) and a clamping arc inner plate (6513) are installed on the inner side of the clamping arc outer plate (6511), and a friction rotor (6514) is distributed on the clamping arc inner plate (6513).

9. The wash-free dyeing processing device for polyester production according to claim 8, characterized in that: A central shaft (641) is provided in the middle of the replacement disk (64), a top disk (642) is installed on the top of the central shaft (641), and the replacement shaft (68) includes a mounting shaft (643) and a connecting piece (644). One end of the mounting shaft (643) is axially mounted on the top disk (642) or the replacement disk (64) and is rotatably arranged relative to the corresponding disk. The other end of the mounting shaft (643) is connected via the connecting piece (644). The false twist disk (67) is mounted on the mounting shaft (643) and pressure plates (645) are installed on both the upper and lower sides of the false twist disk (67). The pressure plates (645) are used to fix and compress the false twist disk (67).

10. The wash-free dyeing processing device for polyester production according to claim 9, characterized in that: The connecting member (644) includes a central rod (6441), and connecting sleeves (6442) are respectively installed at both ends of the central rod (6441). The connecting sleeves (6442) slide axially on the outside of the central rod (6441), and the ends of the connecting sleeves (6442) and the ends of the installation shaft (643) are axially socket-fitted. The bottom of the connecting sleeve (6442) is provided with an installation compartment, and elastic deformation members (6443) are distributed in the installation compartment.

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