Yarn anti-yellowing equipment for polyester yarns

Abstract

The invention discloses polyester yarn anti-yellowing equipment which comprises a leakage-proof pool, the inner wall of the leakage-proof pool is fixedly connected with a drying device, an extruding device and a bleaching device, the top of the leakage-proof pool is fixedly connected with a dehairing device, the drying device comprises a leakage receiving pool, the bottom of the leakage receiving pool is fixedly connected to the inner wall of the leakage-proof pool, and the bottom of the leakage receiving pool is fixedly connected to the inner wall of the leakage-proof pool. The top of the leakage receiving pool is fixedly connected with a fixing plate, the surface of the fixing plate is sleeved with an upper dryer and a lower dryer, and the surface of the upper dryer and the surface of the lower dryer are both fixedly connected with power transmission devices; and the extrusion device comprises a water receiving pool, the bottom of the water receiving pool is fixedly connected to the inner wall of the leakage-proof pool, and the top of the water receiving pool is fixedly connected with a supporting plate. The invention relates to the technical field of yarn yellowing resistance. According to the anti-yellowing equipment for the polyester yarns, the effect of resisting yellowing by incompletely removing bleaching liquid in the polyester yarns is achieved, and the effect of efficiently cleaning fluff on the surfaces of the polyester yarns is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of yarn anti-yellowing, in particular to a polyester yarn anti-yellowing device. Background Art

[0002] The so-called yarn is actually a general term for yarn and thread. In clothing material science, it is defined as follows: Yarn is a long and thin object with a certain strength and linear density, which is made by arranging many short fibers or filaments in a nearly parallel state and twisting them along the axial direction; while thread is a strand of thread formed by twisting two or more single yarns. Yarn is a thin strand of cotton, wool, linen, chemical fiber, etc. (usually used as the raw material for weaving), which is then twisted into multiple strands of cotton, linen, silk, wool and other thin strands, which is called thread.

[0003] In the existing technology, polyester yarn will turn yellow due to washing and continuous pulling. In addition, the fluff produced on the surface of the polyester yarn during bleaching will affect the bleaching effect. Finally, a low concentration of the bleaching solution will make the polyester yarn less able to resist yellowing, while a high concentration of the bleaching solution will cause the quality of the polyester yarn to deteriorate. Summary of the invention

[0004] To achieve the above purpose, the present invention is implemented by the following technical scheme: a polyester yarn anti-yellowing device, including a leak-proof pool, the inner wall of the leak-proof pool is fixedly connected with a drying device, an extrusion device and a bleaching device, the top of the leak-proof pool is fixedly connected with a scraping device, the drying device includes a leak-connecting pool, the bottom of the leak-connecting pool is fixedly connected to the inner wall of the leak-proof pool, the top of the leak-connecting pool is fixedly connected with a fixed plate, the surface of the fixed plate is respectively sleeved with an upper dryer and a lower dryer, and the surfaces of the upper dryer and the lower dryer are fixedly connected with a power transmitter; the extrusion device includes a water receiving pool, the bottom of the water receiving pool is fixedly connected to the inner wall of the leak-proof pool, the top of the water receiving pool is fixedly connected with a support plate, and the surface of the support plate is respectively sleeved with an upper extrusion roller and a lower extrusion roller. Through the coordinated rotation between the upper extrusion roller and the lower extrusion roller, the polyester yarn that has just been bleached is squeezed between the two rollers, the purpose of which is to remove a large amount of bleaching liquid inside the polyester yarn, and the squeezed bleaching liquid will flow into the water receiving pool. Then the power transmission device is started to rotate the lower dryer and the upper dryer to generate high temperature, so that the extruded polyester yarn is dried between the lower dryer and the upper dryer. Although there is a small amount of bleaching liquid inside the dried polyester yarn, it is harmless to the human body and can prevent the yarn from yellowing.

[0005] Preferably, the scraping device includes a bracket plate, the surface of the bracket plate is fixedly connected to the top of the leak-proof pool, the surface of the bracket plate is sleeved with a long axis, the surface of the long axis is fixedly connected to a motor, and the surface of the long axis is fixedly connected to a scraper; the scraper includes a blade, the inner wall of the blade is fixedly connected to the surface of the long axis, the surface of the long axis is rotatably connected to a scraper blade, the surface of the scraper blade is fixedly connected to a receiving and sending plate, the surface of the scraper blade is provided with a collecting port, the surface of the collecting port is fixedly connected to the surface of the receiving and sending plate, and the end of the collecting port away from the receiving and sending plate is fixedly connected to a collecting bag. By starting the motor, the long shaft fixed on the output end of the motor rotates, and the inner wall of the blade is fixedly connected to the surface of the long shaft, so the blade will also rotate. Because the scraper blade is sleeved on the long shaft, the scraper blade does not rotate with the long shaft, but the polyester yarn rotates when it passes through the surface of the scraper blade. At this time, the rotating scraper blade will scrape off the excess fluff on the surface of the polyester yarn, and part of the excess fluff will rotate with the scraper blade, and at the same time, the collection port is facing upward, so that part of the excess fluff enters the collection port; The scraper blade is used to scrape off the excess fluff on the surface of the polyester yarn, so that another part of the excess fluff will be rolled into the oblique mouth of the receiving and delivering plate. Due to the rotational force, the fluff will always be stuck at the oblique mouth of the receiving and delivering plate. However, when the polyester yarn is delivered, the speed of the scraper blade will decrease, and it will rise to the highest receiving and delivering plate, and the fluff at the oblique mouth will fall into the collecting port. In addition, as the blade rotates, the pressure inside the scraper blade is lower than the external pressure, so the scraped fluff will be sucked into the collecting port to achieve the effect of efficient removal.

[0006] Preferably, the bleaching device comprises a bleaching tank, a surface of which is provided with circulation holes, a support is fixedly connected to the surface of the bleaching tank, an inner wall of the support is sleeved with an output roller, and a circulation device is arranged below the output roller.

[0007] Preferably, the circulation device includes a circulation plate, the surface of which is fixedly connected to the surface of the water receiving tank, the end of the circulation plate away from the water receiving tank is fixedly connected to the inner wall of the circulation hole, the surface of the bleaching tank is fixedly connected to a support shaft seat, and the surface of the support shaft seat is sleeved with an input roller.

[0008] Preferably, the bleaching tank includes a bleaching tank shell, the surfaces of which are respectively fixedly connected to the surfaces of the support and the support shaft seat, the inner wall of the bleaching tank shell is fixedly connected with a partition, the surface of which is fixedly connected with a stirring blade, the surface of which is fixedly connected with an infusion port and a liquid outlet, and the surface of which is fixedly connected with a right port plate and a left port plate. The polyester yarn with fluff scraped off enters the bleaching tank, and first enters the hole opened by the left mouth plate, and then enters the space formed by the left and right mouth plates, and then goes out from the right mouth plate. The above operation is repeated, so that the polyester yarn presents multiple S shapes in the bleaching tank, and the polyester yarn is subjected to multiple segmentation treatments to achieve the effect of cleaning the surface of the polyester yarn with different yellowing degrees with bleaching liquid of different concentrations, wherein the function of the stirring blade is to stir the bleaching liquid, thereby increasing the bleaching intensity of the polyester yarn, and finally the bleached bleaching liquid will flow out from the liquid outlet, and then enter the water receiving tank through the flow hole along the flow plate to achieve the collection effect.

[0009] Preferably, the right mouth plate includes a shell, a trigger is fixedly connected to the inner wall of the shell, a rolling curtain is slidably connected to the inner wall of the shell, a connecting rod is fixedly connected to the surface of the rolling curtain, a No. 1 bevel gear is fixedly connected to the surface of the connecting rod, a No. 1 bevel gear is meshingly connected to the surface of the No. 1 bevel gear, a No. 2 bevel gear is fixedly connected to the surface of the No. 2 bevel gear, a rotating rod is fixedly connected to the surface of the trigger, and the surface of the rotating rod is fixedly connected to the surface of the trigger.

[0010] Preferably, the trigger includes a support frame, a surface of the support frame is fixedly connected to the inner wall of the shell, a short shaft is fixedly connected to the surface of the shell, a gear is rotatably connected to the surface of the short shaft, an elastic strip is fixedly connected to the surface of the gear, and the elastic strip is fixedly connected to the inner wall of the shell at one end away from the gear. The polyester yarn enters the right and left mouth plates, so that the polyester yarn touches the gear and causes the gear to rotate. A rotating rod is fixedly connected to the surface of the gear, which causes the rotating rod to rotate and drive the No. 2 bevel gear fixed on its surface to rotate. In addition, the No. 2 bevel gear and the No. 1 bevel gear are meshed with each other for transmission, so the No. 1 bevel gear will rotate and drive the connecting rod fixed on its surface to rotate. A roller blind is rolled up on the surface of the connecting rod, so the roller blind will spread out and slide along the inner wall of the shell to achieve the effect of blocking the opening on the shell surface. Because an elastic strip is fixedly connected to the surface of the gear, the gear will not rotate after the roller blind blocks the opening on the shell surface, and when the polyester yarn enters the next process, the elastic strip will pull the gear to return to its original state, and the roller blind will be rolled back onto the connecting rod.

[0011] The present invention provides a polyester yarn anti-yellowing device, which has the following beneficial effects:

[0012] 1. The polyester yarn anti-yellowing equipment, through the coordinated rotation between the upper squeezing roller and the lower squeezing roller, makes the newly bleached polyester yarn pass through the two rollers for squeezing, the purpose of which is to remove a large amount of bleaching liquid inside the polyester yarn, and the squeezed bleaching liquid will flow into the water receiving pool. Then start the power transmission device, let the lower dryer and the upper dryer rotate and generate high temperature, so that the squeezed polyester yarn passes through the lower dryer and the upper dryer for drying treatment. Although there is a small amount of bleaching liquid inside the dried polyester yarn, it is harmless to the human body and plays the role of anti-yellowing of the yarn.

[0013] 2. The polyester yarn anti-yellowing equipment starts the motor to rotate the long shaft fixed on the output end of the motor, and the inner wall of the blade is fixedly connected to the surface of the long shaft, so the blade will also rotate. Because the scraper blade is sleeved on the long shaft, the scraper blade does not rotate with the long shaft, but the polyester yarn rotates only when it passes through the surface of the scraper blade. At this time, the rotating scraper blade will scrape off excess fluff on the surface of the polyester yarn, and part of the excess fluff will rotate with the scraper blade, and at the same time, the collecting port faces upward, so that part of the excess fluff enters the collecting port.

[0014] 3. The polyester yarn anti-yellowing equipment scrapes off excess fluff on the surface of the polyester yarn through a scraper blade, so that another part of the excess fluff will be rolled into the oblique mouth of the receiving and sending plate. Due to the effect of the rotational force, the fluff will always be stuck at the oblique mouth of the receiving and sending plate. However, when the polyester yarn is transported, the speed of the scraper blade will decrease, and the receiving and sending plate will rise to the highest point, and the fluff at the oblique mouth will fall into the collecting port. In addition, as the blade rotates, the pressure inside the scraper blade is lower than the external pressure, so the scraped fluff will be sucked into the collecting port to achieve the effect of efficient removal.

[0015] Fourth, the polyester yarn anti-yellowing equipment, through the polyester yarn with fluff scraped off entering the bleaching tank, the polyester yarn will first enter the hole opened by the left mouth plate, and then enter the space formed by the left and right mouth plates, and then go out from the right mouth plate, repeating the above operation, so that the polyester yarn presents multiple S shapes in the bleaching tank, and the polyester yarn is subjected to multiple segmentation treatments, so as to achieve the effect of cleaning the surface of the polyester yarn with different yellowing degrees with bleaching liquid of different concentrations, wherein the function of the stirring blade is to stir the bleaching liquid, so as to increase the bleaching intensity of the polyester yarn, and finally the bleached bleaching liquid will flow out from the liquid outlet, and then enter the water receiving tank through the flow hole along the flow plate, so as to achieve the collection effect.

[0016] 5. The polyester yarn anti-yellowing equipment allows the polyester yarn to enter the right mouth plate and the left mouth plate, so that the polyester yarn will touch the gear and cause the gear to rotate. A rotating rod is fixedly connected to the surface of the gear, so that the rotating rod rotates and drives the No. 2 bevel gear fixed on its surface to rotate. In addition, the No. 2 bevel gear and the No. 1 bevel gear are meshed with each other for transmission, so the No. 1 bevel gear will rotate and drive the connecting rod fixed on its surface to rotate. A roller blind is rolled up on the surface of the connecting rod, so the roller blind will spread out and slide along the inner wall of the shell to achieve the effect of blocking the opening on the shell surface. Because an elastic strip is fixedly connected to the surface of the gear, the gear will not rotate after the roller blind blocks the opening on the shell surface, and when the polyester yarn enters the next process, the elastic strip will pull the gear to return to its original state, and the roller blind will be rolled back onto the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall internal structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the shaving device of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the hair scraper of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the bleaching device of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the bleaching tank of the present invention;

[0023] Figure 7 This is a schematic diagram of the internal structure of the bleaching tank of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the right port plate of the present invention;

[0025] Fig. 9 This is a schematic diagram of the internal structure of the housing of the present invention;

[0026] Fig.10 Schematic diagram of the trigger structure of the present invention.

[0027] In the figure: 1, leak-proof tank; 2, drying device; 3, squeezing device; 4, bleaching device; 5, scraping device; 6, circulation device; 21, lower dryer; 22, upper dryer; 23, electric transmitter; 24, fixing plate; 25, leak-collecting tank; 31, water collecting tank; 32, upper squeezing roller; 33, lower squeezing roller; 34, supporting plate; 51, bracket plate; 52, long shaft; 53, scraper; 54, motor; 531, collecting capsule; 532, blade; 533, scraper blade; 534, collecting port; 535, receiving and sending plate; 41, bleaching tank; 42, stirring blade; 4 3. Support; 44. Output roller; 45. Circulation hole; 61. Circulation plate; 62. Input roller; 63. Support shaft seat; 411. Infusion port; 412. Partition plate; 413. Bleach tank shell; 414. Liquid outlet; 415. Right port plate; 416. Left port plate; 4151. Shell; 4152. Trigger; 41511. Roller shutter; 41512. Connecting rod; 41513. Bevel gear No. 1; 41514. Bevel gear No. 2; 41515. Rotating rod; 41521. Elastic strip; 41522. Support frame; 41523. Short shaft; 41524. Gear. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0029] Example 1

[0030] like Figure 1-Figure 2 As shown, the present invention provides a technical solution: a polyester yarn anti-yellowing device, comprising a leak-proof pool 1, the inner walls of the leak-proof pool 1 are respectively fixedly connected with a drying device 2, an extrusion device 3 and a bleaching device 4, the top of the leak-proof pool 1 is fixedly connected with a scraping device 5, the drying device 2 comprises a leak-connecting pool 25, the bottom of the leak-connecting pool 25 is fixedly connected to the inner wall of the leak-proof pool 1, the top of the leak-connecting pool 25 is fixedly connected with a fixing plate 24, the surfaces of the fixing plate 24 are respectively sleeved with an upper dryer 22 and a lower dryer 21, and the surfaces of the upper dryer 22 and the lower dryer 21 are both fixedly connected with a power transmitter 23; the extrusion device 3 comprises a water receiving pool 31, the bottom of the water receiving pool 31 is fixedly connected to the inner wall of the leak-proof pool 1, the top of the water receiving pool 31 is fixedly connected with a support plate 34, and the surfaces of the support plate 34 are respectively sleeved with an upper extrusion roller 32 and a lower extrusion roller 33.

[0031] When in use, the upper squeezing roller 32 and the lower squeezing roller 33 rotate in coordination, so that the newly bleached polyester yarn is squeezed between the two rollers, the purpose of which is to remove a large amount of bleaching liquid inside the polyester yarn, and the squeezed bleaching liquid will flow into the water receiving tank 31. Then, the power transmission device 23 is started to rotate the lower dryer 21 and the upper dryer 22 to generate high temperature, so that the squeezed polyester yarn is dried between the lower dryer 21 and the upper dryer 22. Although there is a small amount of bleaching liquid inside the dried polyester yarn, it is harmless to the human body and plays a role in preventing the yarn from yellowing.

[0032] Example 2

[0033] like Figure 3-Figure 4 As shown, the scraping device 5 includes a bracket plate 51, the surface of which is fixedly connected to the top of the leak-proof pool 1, the surface of which is sleeved with a long axis 52, the surface of which is fixedly connected to a motor 54, and the surface of which is fixedly connected to a scraper 53; the scraper 53 includes a blade 532, the inner wall of which is fixedly connected to the surface of the long axis 52, the surface of which is rotatably connected to a scraper blade 533, the surface of which is fixedly connected to a receiving and sending plate 535, the surface of which is provided with a collecting port 534, the surface of which is fixedly connected to the surface of the receiving and sending plate 535, and the end of which is away from the receiving and sending plate 535 and fixedly connected to a collecting capsule 531.

[0034] When in use, the motor 54 is started to rotate the long shaft 52 fixed on the output end of the motor 54, and the inner wall of the blade 532 is fixedly connected to the surface of the long shaft 52, so the blade 532 will also rotate. Because the scraper blade 533 is sleeved on the long shaft 52, the scraper blade 533 does not rotate with the long shaft 52, but the polyester yarn rotates only when it passes through the surface of the scraper blade 533. At this time, the rotating scraper blade 533 will scrape off excess fluff on the surface of the polyester yarn, and part of the excess fluff will rotate with the rotation of the scraper blade 533. At the same time, the collecting port 534 faces upward, so that part of the excess fluff enters the collecting port 534.

[0035] The scraper blade 533 is used to scrape off the excess fluff on the surface of the polyester yarn, so that another part of the excess fluff will be rolled into the oblique opening of the receiving and delivering plate 535. Due to the rotational force, the fluff will always be stuck at the oblique opening of the receiving and delivering plate 535. However, when the polyester yarn is transported, the speed of the scraper blade 533 will decrease, and it will rise to the highest receiving and delivering plate 535, and the fluff at its oblique opening will fall into the collecting port 534. In addition, as the blade 532 rotates, the pressure inside the scraper blade 533 is lower than the external pressure, so the scraped fluff will be sucked into the collecting port 534 to achieve the effect of efficient removal.

[0036] Example 3

[0037] like Figure 5-Figure 7 As shown, the bleaching device 4 includes a bleaching tank 41, a circulation hole 45 is opened on the surface of the bleaching tank 41, a support 43 is fixedly connected to the surface of the bleaching tank 41, an output roller 44 is sleeved on the inner wall of the support 43, and a circulation device 6 is arranged below the output roller 44, and the circulation device 6 includes a circulation plate 61, the surface of the circulation plate 61 is fixedly connected to the surface of the water receiving tank 31, and one end of the circulation plate 61 away from the water receiving tank 31 is fixedly connected to the inner wall of the circulation hole 45, and the surface of the bleaching tank 41 is fixedly connected to the support shaft seat 63, the surface of the support shaft seat 63 is sleeved with an input roller 62, the bleaching tank 41 includes a bleaching tank shell 413, the surfaces of the bleaching tank shell 413 are respectively fixedly connected to the surfaces of the support 43 and the support shaft seat 63, the inner wall of the bleaching tank shell 413 is fixedly connected to a partition 412, the surface of the partition 412 is fixedly connected to a stirring blade 42, the surface of the partition 412 is respectively fixedly connected to an infusion port 411 and a liquid outlet 414, and the surface of the partition 412 is respectively fixedly connected to a right port plate 415 and a left port plate 416.

[0038] When in use, the polyester yarn with the fluff scraped off enters the bleaching tank 41, and the polyester yarn first enters the hole opened by the left port plate 416, and then enters the space formed by the left port plate 416 and the right port plate 415, and then goes out from the right port plate 415. The above operation is repeated, so that the polyester yarn presents a multi-S shape in the bleaching tank, and the polyester yarn is subjected to multiple segmentation treatments to achieve the effect of washing the surface of the polyester yarn with different yellowing degrees with bleaching liquid of different concentrations, wherein the function of the stirring blade 42 is to stir the bleaching liquid, thereby increasing the bleaching intensity of the polyester yarn, and finally the bleached bleaching liquid will flow out from the liquid outlet 414, and then enter the inside of the water receiving tank 31 through the circulation hole 45 along the circulation plate 61 to achieve the collection effect.

[0039] Example 4

[0040] like Figure 8-Figure 10As shown, the right mouth plate 415 includes a shell 4151, the inner wall of the shell 4151 is fixedly connected to a trigger 4152, the inner wall of the shell 4151 is slidably connected to a rolling curtain 41511, the surface of the rolling curtain 41511 is fixedly connected to a connecting rod 41512, the surface of the connecting rod 41512 is fixedly connected to a first bevel gear 41513, the surface of the first bevel gear 41513 is meshingly connected to a second bevel gear 41514, the surface of the second bevel gear 41514 is fixedly connected to a rotating rod 41515, and the rotating rod 41515 is fixedly connected to the rotating rod 41516. The surface of 1515 is fixedly connected to the surface of the trigger 4152, and the trigger 4152 includes a support frame 41522, and the surface of the support frame 41522 is fixedly connected to the inner wall of the shell 4151, and the surface of the shell 4151 is fixedly connected to a short shaft 41523, and the surface of the short shaft 41523 is rotatably connected to a gear 41524, and the surface of the gear 41524 is fixedly connected to an elastic strip 41521, and the elastic strip 41521 is fixedly connected to the inner wall of the shell 4151 at one end away from the gear 41524.

[0041] When in use, the polyester yarn enters the right mouth plate 415 and the left mouth plate 416, so that the polyester yarn touches the gear 41524 and causes the gear 41524 to rotate. The surface of the gear 41524 is fixedly connected with a rotating rod 41512, so that the rotating rod 41512 rotates and drives the second bevel gear 41514 fixed on its surface to rotate together. In addition, the second bevel gear 41514 and the first bevel gear 41513 are meshed with each other for transmission, so the first bevel gear 41513 will rotate and drive the connecting rod 41512 fixed on its surface to rotate, and the connecting rod 415 12 has a rolling curtain 41511 rolled up on the surface, so the rolling curtain 41511 will spread out and slide along the inner wall of the shell 4151 to achieve the effect of blocking the opening on the surface of the shell 4151, because the surface of the gear 41524 is fixedly connected with the elastic strip 41521, when the rolling curtain 41511 blocks the opening on the surface of the shell 4151, the gear 41524 will not rotate, and when the polyester yarn enters the next process, the elastic strip 41521 will pull the gear 41524 to return to its original state, and the rolling curtain 41511 will be rewound back onto the connecting rod 41512.

[0042] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A polyester yarn anti-yellowing device, comprising a leak-proof tank (1), characterized in that: The inner wall of the leak-proof pool (1) is respectively fixedly connected with a drying device (2), a squeezing device (3) and a bleaching device (4); the top of the leak-proof pool (1) is fixedly connected with a scraping device (5); the drying device (2) comprises a leak-connecting pool (25); the bottom of the leak-connecting pool (25) is fixedly connected to the inner wall of the leak-proof pool (1); the top of the leak-connecting pool (25) is fixedly connected with a fixing plate (24); the surface of the fixing plate (24) is respectively sleeved with an upper dryer (22) and a lower dryer (21); the surfaces of the upper dryer (22) and the lower dryer (21) are both fixedly connected with a power transmitter (23); The squeezing device (3) comprises a water receiving pool (31), the bottom of the water receiving pool (31) is fixedly connected to the inner wall of the leak-proof pool (1), the top of the water receiving pool (31) is fixedly connected to a support plate (34), and the surface of the support plate (34) is respectively sleeved with an upper squeezing roller (32) and a lower squeezing roller (33); The scraping device (5) comprises a support plate (51), the surface of the support plate (51) is fixedly connected to the top of the leak-proof pool (1), the surface of the support plate (51) is sleeved with a long shaft (52), the surface of the long shaft (52) is fixedly connected to a motor (54), and the surface of the long shaft (52) is fixedly connected to a scraper (53).

2. The polyester yarn anti-yellowing device according to claim 1, characterized in that: The scraper (53) comprises a blade (532), the inner wall of which is fixedly connected to the surface of the long axis (52), the surface of the long axis (52) is rotatably connected to a scraper blade (533), the surface of the scraper blade (533) is fixedly connected to a receiving and sending plate (535), a collecting port (534) is provided on the surface of the scraper blade (533), the surface of the collecting port (534) is fixedly connected to the surface of the receiving and sending plate (535), and one end of the collecting port (534) away from the receiving and sending plate (535) is fixedly connected to a collecting bag (531).

3. The anti-yellowing device for polyester yarn according to claim 1, characterized in that: The bleaching device (4) comprises a bleaching tank (41), the surface of which is provided with a circulation hole (45), the surface of which is fixedly connected with a support (43), the inner wall of which is provided with an output roller (44), and a circulation device (6) is provided below the output roller (44).

4. The polyester yarn anti-yellowing device according to claim 1, characterized in that: The circulation device (6) comprises a circulation plate (61), the surface of which is fixedly connected to the surface of the water receiving tank (31), one end of the circulation plate (61) away from the water receiving tank (31) is fixedly connected to the inner wall of the circulation hole (45), the surface of the bleaching tank (41) is fixedly connected to a support shaft seat (63), and the surface of the support shaft seat (63) is sleeved with an input roller (62).

5. The polyester yarn anti-yellowing device according to claim 1, characterized in that: The bleaching tank (41) comprises a bleaching tank shell (413), the surfaces of which are respectively fixedly connected to the surfaces of the support (43) and the support shaft seat (63), the inner wall of the bleaching tank shell (413) is fixedly connected to a partition (412), the surface of which is fixedly connected to a stirring blade (42), the surface of which is respectively fixedly connected to an infusion port (411) and a liquid outlet (414), and the surface of which is respectively fixedly connected to a right port plate (415) and a left port plate (416).

6. The polyester yarn anti-yellowing device according to claim 1, characterized in that: The right mouth plate (415) comprises a shell (4151), the inner wall of the shell (4151) is fixedly connected with a trigger (4152), the inner wall of the shell (4151) is slidably connected with a roller blind (41511), the surface of the roller blind (41511) is fixedly connected with a connecting rod (41512), the surface of the connecting rod (41512) is fixedly connected with a first bevel gear (41513), the surface of the first bevel gear (41513) is meshingly connected with a second bevel gear (41514), the surface of the second bevel gear (41514) is fixedly connected with a rotating rod (41515), and the surface of the rotating rod (41515) is fixedly connected to the surface of the trigger (4152).

7. The polyester yarn anti-yellowing device according to claim 1, characterized in that: The trigger (4152) includes a support frame (41522), the surface of the support frame (41522) is fixedly connected to the inner wall of the shell (4151), the surface of the shell (4151) is fixedly connected to a short shaft (41523), the surface of the short shaft (41523) is rotatably connected to a gear (41524), the surface of the gear (41524) is fixedly connected to an elastic strip (41521), and the end of the elastic strip (41521) away from the gear (41524) is fixedly connected to the inner wall of the shell (4151).

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