Oiling agent oiling device for DTY (Draw Textured Yarn) polyester yarns

Abstract

The utility model relates to the technical field of polyester yarn processing, in particular to a DTY polyester yarn oiling device which comprises a bottom plate, the upper end of the bottom plate is symmetrically connected with side plates, one side of one side plate is provided with a first oiling mechanism, one side of the first oiling mechanism is connected with a fixing base, and the fixing base is provided with a second oiling mechanism. One end of the fixing base is connected with the other side plate, square grooves are formed in the outer sides of the side plates, a second oiling mechanism is jointly inserted into inner cavities of the square grooves, the second oiling mechanism is located below the first oiling mechanism, an oil tank is installed at the upper end of the bottom plate, and a recycling mechanism is arranged at the lower end of the second oiling mechanism. Compared with the prior art, the DTY polyester yarn oiling device has the advantages that the structural design is reasonable, the practicability is high, the DTY polyester yarn can be evenly coated with oiling agent conveniently, the working efficiency is high, the oiling agent can be recycled conveniently, and resource waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of polyester filament processing, in particular to an oiling device for DTY polyester filaments. Background Technique

[0002] Polyester is an important variety in synthetic fibers. The characteristics of polyester filaments are that they can withstand chemical substances and frequent washing, reducing the phenomenon of clothing fading and decolorization. Polyester filaments are tougher than rayon, and polyester drawn textured yarn is simply called polyester DTY yarn. It is a type of deformed yarn of polyester chemical fiber. It uses polyester chips as raw materials, adopts high-speed spinning of polyester pre-oriented yarn, and then is processed by drawing and false twisting. During the production and processing of DTY polyester filaments, it is necessary to oil them. Oiling is an important step in the spinning process, which can avoid static electricity in polyester filaments, endow polyester filaments with good bundling property, smoothness and antistatic property, reduce the generation of hairiness and broken ends, improve the spinnability and post-processing performance, and is an essential link in chemical fiber preparation.

[0003] When the current oiling equipment oils DTY polyester filaments, some equipment not only applies the oil unevenly during oiling, with low efficiency, affecting the quality of product processing, but also the used oil cannot be recycled, resulting in waste of resources. Therefore, we provide an oiling device for DTY polyester filaments to solve this problem. Content of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an oiling device for DTY polyester filaments to solve this problem.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] Design an oiling device for DTY polyester filaments, including a bottom plate. The upper end of the bottom plate is symmetrically connected with side plates. One side of one of the side plates is provided with a first oiling mechanism. One side of the first oiling mechanism is connected with a fixing seat. One end of the fixing seat is connected with the other side plate. Square grooves are arranged on the outer sides of the side plates. The inner cavities of the square grooves are jointly inserted with a second oiling mechanism. The second oiling mechanism is located below the first oiling mechanism. The upper end of the bottom plate is provided with an oil tank. The lower end of the second oiling mechanism is provided with a recovery mechanism. The recovery mechanism is connected with the oil tank. An outer cover assembly is jointly installed between the side plates. One side of one of the side plates is provided with a pump body. One end of the pump body is connected with the oil tank through a suction pipe. The outside of the pump body is connected with the first oiling mechanism through an oil delivery pipe;

[0007] The first oiling mechanism includes a housing installed on the outer side of the side plate. One side of the housing is connected to a first cylinder. One end of the first cylinder is connected to a fixed seat. An upper part of the outer side of the first cylinder is provided with a first oil storage tank. The outer side of the first cylinder is provided with a first annular oil drainage groove communicated with the first oil storage tank. An oil injection assembly is installed in the inner cavity of the housing. One end of the oil injection assembly penetrates through the housing and extends into the inner cavity of the first oil storage tank.

[0008] Preferably, the oil injection assembly includes a fixed cylinder installed in the inner cavity of the housing. One end of an oil delivery pipe is connected to the fixed cylinder. A sealing column is installed in the inner cavity of the fixed cylinder. A conical groove is provided in the middle of the sealing column. A sealing groove is provided on one side of the sealing column. The sealing groove is communicated with the conical groove. A conical column is inserted into the inner cavity of the conical groove. One end of the conical column is connected to a retaining disc. The retaining disc is located in the inner cavity of the sealing groove. One side of the retaining disc penetrates through the housing through a fixed column and extends into the inner cavity of the first oil storage tank to be connected to a rectangular block. An arc-shaped opening is provided at the lower end of the rectangular block. A movable frame is installed in the inner cavity of the housing. The movable frame is movably sleeved on the outer side of the fixed column. A spring is jointly connected between the retaining disc and the movable frame. An oil outlet hole is provided on the outer side of the housing.

[0009] Preferably, the second oiling mechanism includes two threaded columns inserted into the inner cavity of the square groove. One end of each of the two threaded columns is connected to a support column. A second cylinder is jointly connected between the support columns. An upper part of the outer side of the second cylinder is provided with a second oil storage tank. The outer side of the second cylinder is provided with a second annular oil drainage groove communicated with the second oil storage tank. The position of the second annular oil drainage groove corresponds to that of the first annular oil drainage groove. Nuts are screwed on one ends of the threaded columns passing through the square groove. Brackets are connected to the lower ends of the second cylinders.

[0010] Preferably, the recovery mechanism includes an arc-shaped plate provided on the outer side of the second cylinder. The position of the arc-shaped plate corresponds to that of the second annular oil drainage groove. An oil collection groove is provided on the inner side of the arc-shaped plate. The inner width of the oil collection groove is greater than the inner width of the second annular oil drainage groove. A fixed pipe is screwed at the lower end of the arc-shaped plate. The lower end of the fixed pipe penetrates through the bracket and is connected to a return oil pipe. The return oil pipe is connected to an oil tank.

[0011] Preferably, a limit sleeve is installed on the outer side of the fixed pipe. The limit sleeve is located at the lower end of the bracket. A threaded sleeve is screwed on the outer side of the fixed pipe. The threaded sleeve is located at the inner bottom end of the bracket.

[0012] Preferably, the outer cover assembly includes a U-shaped glass cover installed between the two side plates. The upper end of the U-shaped glass cover is rotatably connected to a top plate. Notch openings are provided on both sides of the U-shaped glass cover. The first oiling mechanism, the second oiling mechanism and the arc-shaped plate are all located in the inner cavity of the U-shaped glass cover.

[0013] An oiling device for DTY polyester filaments proposed by the present utility model has the beneficial effects as follows:

[0014] 1. Through the cooperation between the first oiling mechanism and the second oiling mechanism, the polyester filaments passing through the upper part of the inner cavity of the second annular oil drainage groove and the lower part of the inner cavity of the first annular oil drainage groove are oiled, effectively performing a more comprehensive and uniform oiling operation on the polyester filaments, improving the oiling effect, and the automatic oiling effectively improves the working efficiency;

[0015] 2. By fitting the arc plate on the lower outer side of the second cylinder, it is convenient for the oil agent dripping from the lower end of the second annular oil drainage groove to fall into the oil collecting groove of the arc plate, and then enter the fuel tank through the fixed pipe and the oil return pipe for recycling and reuse, effectively reducing the cost and avoiding waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic three-dimensional structure diagram of the whole proposed by the present utility model;

[0017] Figure 2 It is a schematic three-dimensional structure diagram of the whole internal part proposed by the present utility model;

[0018] Figure 3 It is a schematic three-dimensional structure diagram of a semi-section of the first oiling mechanism proposed by the present utility model;

[0019] Figure 4 It is a schematic three-dimensional structure diagram of a semi-section of the oil injection assembly proposed by the present utility model;

[0020] Figure 5 It is a schematic three-dimensional structure diagram of a part of the second oiling mechanism proposed by the present utility model;

[0021] Figure 6 It is a schematic three-dimensional structure diagram of a part of the recovery mechanism proposed by the present utility model;

[0022] Figure 7 It is a schematic three-dimensional structure diagram of the side plate proposed by the present utility model;

[0023] Figure 8 It is a schematic three-dimensional structure diagram of a semi-section of the outer cover assembly proposed by the present utility model.

[0024] In the figure: bottom plate 1, side plate 2, first oiling mechanism 3, housing 31, oil injection assembly 32, fixed cylinder 321, sealing column 322, conical column 323, retaining plate 324, fixed column 325, rectangular block 326, arc-shaped opening 327, movable frame 328, spring 329, oil outlet hole 3210, first cylinder 33, first oil storage tank 34, first annular oil drainage groove 35, fixed seat 4, second oiling mechanism 5, threaded column 51, nut 52, support column 53, second cylinder 54, second oil storage tank 55, second annular oil drainage groove 56, bracket 57, recovery mechanism 6, arc-shaped plate 61, oil collection tank 62, fixed pipe 63, return oil pipe 64, limit sleeve 65, threaded sleeve 66, fuel tank 7, outer cover assembly 8, U-shaped glass cover 81, top plate 82, notch 83, pump body 9, suction pipe 10, delivery pipe 11, square groove 12. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] Refer to Figure 1-8 , an oiling device for DTY polyester filaments, including a bottom plate 1, side plates 2 symmetrically connected to the upper end of the bottom plate 1, a first oiling mechanism 3 is installed on one side of one of the side plates 2, a fixed seat 4 is connected to one side of the first oiling mechanism 3, and one end of the fixed seat 4 is connected to the other side plate 2. A pump body 9 is installed outside one of the side plates 2. One end of the pump body 9 is connected to the fuel tank 7 through a suction pipe 10, and the outside of the pump body 9 is connected to the first oiling mechanism 3 through a delivery pipe 11.

[0027] The first oiling mechanism 3 includes a housing 31 installed outside the side plate 2. One side of the housing 31 is connected to a first cylinder 33. One end of the first cylinder 33 is connected to the fixed seat 4. The upper part outside the first cylinder 33 is provided with a first oil storage tank 34. The outside of the first cylinder 33 is provided with a first annular oil drainage groove 35 communicated with the first oil storage tank 34. An oil injection assembly 32 is installed in the inner cavity of the housing 31. One end of the oil injection assembly 32 penetrates through the housing 31 and extends into the inner cavity of the first oil storage tank 34.

[0028] The fuel injection assembly 32 includes a fixed cylinder 321 installed in the inner cavity of the housing 31. One end of the fuel delivery pipe 11 is connected to the fixed cylinder 321. A sealing column 322 is installed in the inner cavity of the fixed cylinder 321. A conical groove is provided in the middle of the sealing column 322. A sealing groove is provided on one side of the sealing column 322, and the sealing groove communicates with the conical groove. A conical column 323 is inserted into the inner cavity of the conical groove. One end of the conical column 323 is connected with a retaining disc 324. The retaining disc 324 is located in the inner cavity of the sealing groove. One side of the retaining disc 324 passes through the housing 31 through a fixed column 325 and extends to be connected with a rectangular block 326 in the inner cavity of the first oil storage tank 34. An arc-shaped opening 327 is provided at the lower end of the rectangular block 326. A movable frame 328 is installed in the inner cavity of the housing 31. The movable frame 328 is movably sleeved on the outside of the fixed column 325. A spring 329 is jointly connected between the retaining disc 324 and the movable frame 328. An oil outlet hole 3210 is provided on the outside of the housing 31.

[0029] The pump body 9 sucks the oil agent from the fuel tank 7 through the suction pipe 10 and then sends it into the inner cavity of the fixed cylinder 321 through the fuel delivery pipe 11. When the inner cavity of the fixed cylinder 321 is filled with the oil agent and the pump body 9 continues to work, the oil agent pushes the conical column 323. Then, the conical column 323 drives the retaining disc 324 and the fixed column 325 to move to the right, and at the same time compresses the spring 329. At this time, the oil agent discharges through the gap between the conical column 323 and the conical groove, and then discharges through the oil outlet hole 3210, and then enters the first oil storage tank 34 outside the first column 33, and discharges towards the other side of the inner cavity of the first oil storage tank 34 through the arc-shaped opening 327 at the lower end of the rectangular block 326, which is convenient for filling the entire first oil storage tank 34. When the oil agent in the inner cavity of the first oil storage tank 34 is filled, the oil agent then leaks out, and flows downward from the upper end of the inner cavity of the first annular oil drainage groove 35 towards both sides, and finally converges at the lower end of the inner cavity of the first annular oil drainage groove 35, which is convenient for oiling the polyester filaments passing through the lower end of the inner cavity of the first annular oil drainage groove 35, and the excess oil agent drips downward and enters the second oiling mechanism 5, which is convenient for the second oiling mechanism 5 to collect the oil agent, facilitating oiling the lower surface of the polyester filaments and improving the effect of uniform oiling.

[0030] Square grooves 12 are provided on the outer sides of the side plates 2. A second oiling mechanism 5 is jointly inserted into the inner cavities of the square grooves 12. The second oiling mechanism 5 is located below the first oiling mechanism 3. The second oiling mechanism 5 includes two threaded columns 51 inserted into the inner cavities of the square grooves 12. One end of each of the two threaded columns 51 is connected with a support column 53. A second column 54 is jointly connected between the support columns 53. A second oil storage tank 55 is provided on the upper part of the outer side of the second column 54. A second annular oil drainage groove 56 is provided on the outer side of the second column 54 and communicates with the second oil storage tank 55. The second annular oil drainage groove 56 corresponds to the position of the first annular oil drainage groove 35. Nuts 52 are screwed on one end of each of the threaded columns 51 passing through the square grooves 12. Brackets 57 are connected to the lower ends of the second columns 54.

[0031] The oil agent dripping from the lower end of the inner cavity of the first annular oil drainage groove 35 falls into the inner cavity of the second oil storage tank 55. When the inner cavity of the second oil storage tank 55 is filled with the oil agent, it is convenient to perform the oiling operation on the polyester filament together with the first oiling mechanism 3. Then, after the polyester filament at the lower end of the inner cavity of the first annular oil drainage groove 35 is oiled, the excessive oil agent still drips into the inner cavity of the second oil storage tank 55, and the excessive oil agent in the second oil storage tank 55 drains downward from the upper end of the inner cavity of the second annular oil drainage groove 56 to both sides. During this process, it is convenient to oil the polyester filament passing through the upper part of the inner cavity of the second annular oil drainage groove 56, effectively performing a more comprehensive and uniform oiling operation on the polyester filament, improving the oiling effect, and the automatic oiling effectively improves the working efficiency. And by moving the threaded column 51 up and down and tightening the threaded column 51, it is convenient to finely adjust the height of the second oiling mechanism 5, so that when polyester filaments with different diameters pass through the first cylinder 33 and the second cylinder 54, they are closer to the first annular oil drainage groove 35 and the second annular oil drainage groove 56, which is convenient to improve the oiling effect.

[0032] A fuel tank 7 is installed at the upper end of the bottom plate 1. A recovery mechanism 6 is arranged at the lower end of the second oiling mechanism 5, and the recovery mechanism 6 is connected to the fuel tank 7. The recovery mechanism 6 includes an arc-shaped plate 61 arranged outside the second cylinder 54. The arc-shaped plate 61 corresponds to the position of the second annular oil drainage groove 56. An oil collection groove 62 is arranged inside the arc-shaped plate 61. The inner width of the oil collection groove 62 is greater than the inner width of the second annular oil drainage groove 56. A fixed pipe 63 is screwed at the lower end of the arc-shaped plate 61. The lower end of the fixed pipe 63 penetrates through the support 57 and is connected with an oil return pipe 64. The oil return pipe 64 is connected to the fuel tank 7. A limit sleeve 65 is installed outside the fixed pipe 63. The limit sleeve 65 is located at the lower end of the support 57. A threaded sleeve 66 is screwed outside the fixed pipe 63. The threaded sleeve 66 is located at the bottom end inside the support 57.

[0033] By fitting the arc-shaped plate 61 to the lower part of the outside of the second cylinder 54, it is convenient for the oil agent dripping from the lower end of the second annular oil drainage groove 56 to fall into the oil collection groove 62 of the arc-shaped plate 61, and then enter the fuel tank 7 through the fixed pipe 63 and the oil return pipe 64 for recycling, effectively reducing the cost and avoiding waste of resources. And after the fixed pipe 63 penetrates through the support 57, after being limited by the limit sleeve 65, the fixed pipe 63 is screwed and fixed by the threaded sleeve 66, which is convenient for the arc-shaped plate 61 to fit more stably on the surface of the second cylinder 54, effectively improving the stability of the recovered oil agent.

[0034] An outer cover assembly 8 is commonly installed between the side plates 2. The outer cover assembly 8 includes a U-shaped glass cover 81 installed between the two side plates 2. The upper end of the U-shaped glass cover 81 is rotatably connected to a top plate 82. Notch openings 83 are provided on both sides of the U-shaped glass cover 81. The first oiling mechanism 3, the second oiling mechanism 5, and the arc-shaped plate 61 are all located inside the U-shaped glass cover 81.

[0035] By designing the U-shaped glass cover 81 outside the first oiling mechanism 3, the second oiling mechanism 5, and the arc-shaped plate 61, most dust is effectively prevented from entering the exposed oil agent, which may affect the purity of the recycled oil agent, thereby effectively improving the usage effect.

[0036] Working principle: When the present utility model is in use, the pump body 9 is controlled to be opened by an external controller. The pump body 9 sucks the oil agent from the fuel tank 7 through the suction pipe 10 and then sends it into the inner cavity of the fixed cylinder 321 through the oil delivery pipe 11. When the inner cavity of the fixed cylinder 321 is filled with the oil agent, the oil agent pushes the conical column 323, and then the conical column 323 drives the retaining disc 324 and the fixed column 325 to move to the right, while compressing the spring 329. At this time, the oil agent discharges through the gap between the conical column 323 of the oil agent and the conical groove, and then discharges through the oil outlet hole 3210, and then enters the first oil storage tank 34 outside the first column body 33, and is discharged towards the other side of the inner cavity of the first oil storage tank 34 through the arc-shaped opening 327 at the lower end of the rectangular block 326, which is convenient for filling the entire first oil storage tank 34. When the inner cavity of the first oil storage tank 34 is filled with the oil agent, the oil agent then leaks out and flows downward from the upper end of the inner cavity of the first annular oil drainage groove 35 towards both sides, and finally converges at the lower end of the inner cavity of the first annular oil drainage groove 35, and then enters the inner cavity of the second oil storage tank 55. When the inner cavity of the second oil storage tank 55 is filled with the oil agent, the excess oil agent in the second oil storage tank 55 drains downward from the upper end of the inner cavity of the second annular oil drainage groove 56 towards both sides. During this process, it is convenient to oil the polyester filaments passing through the upper part of the inner cavity of the second annular oil drainage groove 56 and the lower part of the inner cavity of the first annular oil drainage groove 35, effectively performing a more comprehensive and uniform oiling operation on the polyester filaments, improving the oiling effect, and the automatic oiling effectively improves the working efficiency. And then, after the polyester filaments passing through the lower end of the inner cavity of the first annular oil drainage groove 35 are oiled, the excess oil agent still drips into the inner cavity of the second oil storage tank 55, which is convenient for subsequent oil agent recovery. Furthermore, by the arc-shaped plate 61 being attached to the lower part of the outer side of the second column body 54, it is convenient for the oil agent dripping from the lower end of the second annular oil drainage groove 56 to fall into the oil collection groove 62 of the arc-shaped plate 61, and then enters the fuel tank 7 through the fixed pipe 63 and the oil return pipe 64 for recycling and reuse, effectively reducing the cost and avoiding waste of resources. When the oiling operation is stopped, the pump body 9 is closed, and the compressed spring 329 loses the pushing force to the right, automatically resets, and drives the retaining disc 324 and the conical column 323, etc. to reset, preventing the oil agent in the inner cavity of the fixed cylinder 321 from continuing to discharge.

[0037] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A DTY polyester yarn oiling device, comprising a bottom plate (1), characterized in that: The upper end of the bottom plate (1) is symmetrically connected to the side plates (2), one side of one of the side plates (2) is equipped with a first oiling mechanism (3), one side of the first oiling mechanism (3) is connected to a fixing seat (4), one end of the fixing seat (4) is connected to the other side plate (2), the outer sides of the side plates (2) are each provided with a square groove (12), the inner cavities of the square grooves (12) are commonly plugged with a second oiling mechanism (5), and the second oiling mechanism (5) is located below the first oiling mechanism (3). An oil tank (7) is installed at the upper end of the bottom plate (1), a recovery mechanism (6) is provided at the lower end of the second oiling mechanism (5), the recovery mechanism (6) is connected to the oil tank (7), an outer cover assembly (8) is installed between the side plates (2), a pump body (9) is installed on the outer side of one of the side plates (2), one end of the pump body (9) is connected to the oil tank (7) via an oil suction pipe (10), and the outer side of the pump body (9) is connected to the first oiling mechanism (3) via an oil delivery pipe (11); The first oiling mechanism (3) comprises a shell (31) mounted on the outside of the side plate (2); a first column (33) is connected to one side of the shell (31); one end of the first column (33) is connected to a fixing seat (4); a first oil storage groove (34) is arranged on the upper part of the outer side of the first column (33); a first annular oil discharge groove (35) connected to the first oil storage groove (34) is arranged on the outer side of the first column (33); an oil injection assembly (32) is installed in the inner cavity of the shell (31); one end of the oil injection assembly (32) passes through the shell (31) and extends to the inner cavity of the first oil storage groove (34).

2. The oiling device for DTY polyester yarn according to claim 1, characterized in that: The oil injection assembly (32) comprises a fixed cylinder (321) installed in the inner cavity of the housing (31); one end of the oil delivery pipe (11) is connected to the fixed cylinder (321); a sealing column (322) is installed in the inner cavity of the fixed cylinder (321); a conical groove is provided in the middle of the sealing column (322); a sealing groove is provided on one side of the sealing column (322); the sealing groove is connected to the conical groove; a conical cylinder (323) is inserted in the inner cavity of the conical groove; one end of the conical cylinder (323) is connected to a baffle (324); the baffle (324) is located at the sealing cavity; The inner cavity of the groove, one side of the baffle plate (324) passes through the shell (31) through the fixed column (325) and extends to the inner cavity of the first oil storage groove (34) and is connected to a rectangular block (326), the lower end of the rectangular block (326) is provided with an arc-shaped opening (327), the inner cavity of the shell (31) is installed with a movable frame (328), the movable frame (328) is movably sleeved on the outer side of the fixed column (325), the baffle plate (324) and the movable frame (328) are commonly connected with a spring (329), and the outer side of the shell (31) is provided with an oil outlet hole (3210).

3. The oiling device for DTY polyester yarn according to claim 1, characterized in that: The second oiling mechanism (5) comprises two threaded columns (51) inserted into the inner cavity of the square groove (12), one end of the two threaded columns (51) are connected to the support column (53), and the support columns (53) are commonly connected to a second column (54), a second oil storage groove (55) is arranged on the upper outer side of the second column (54), and a second annular oil discharge groove (56) connected to the second oil storage groove (55) is arranged on the outer side of the second column (54), and the second annular oil discharge groove (56) corresponds to the position of the first annular oil discharge groove (35), one end of the threaded column (51) passes through the square groove (12) and is screwed with a nut (52), and the lower end of the second column (54) is connected to a bracket (57).

4. The oiling device for DTY polyester yarn according to claim 3, characterized in that: The recovery mechanism (6) includes an arc plate (61) arranged on the outside of the second column (54), the arc plate (61) corresponds to the position of the second annular oil drain groove (56), an oil collecting groove (62) is arranged on the inside of the arc plate (61), the inner width of the oil collecting groove (62) is greater than the inner width of the second annular oil drain groove (56), a fixing pipe (63) is screwed to the lower end of the arc plate (61), the lower end of the fixing pipe (63) passes through the bracket (57) and is connected to an oil return pipe (64), and the oil return pipe (64) is connected to the oil tank (7).

5. The oiling device for DTY polyester yarn according to claim 4, characterized in that: A limiting sleeve (65) is installed on the outer side of the fixing tube (63), and the limiting sleeve (65) is located at the lower end of the bracket (57). A threaded sleeve (66) is threadedly connected to the outer side of the fixing tube (63), and the threaded sleeve (66) is located at the bottom end of the inner side of the bracket (57).

6. The oiling device for DTY polyester yarn according to claim 4, characterized in that: The outer cover assembly (8) comprises a U-shaped glass cover (81) installed between two side plates (2); the upper end of the U-shaped glass cover (81) is rotatably connected to a top plate (82); notches (83) are provided on both sides of the U-shaped glass cover (81); and the first oiling mechanism (3), the second oiling mechanism (5) and the arc plate (61) are all located in the inner cavity of the U-shaped glass cover (81).

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