Cooling device for polyester fiber crimping machine

Abstract

The invention relates to a cooling device for a polyester fiber crimping machine, the cooling device comprises a rack and a crimping wheel, the rack is provided with two rotating shafts and a driving assembly for driving the rotating shafts to rotate, one end of each rotating shaft is provided with a liquid inlet area, a plurality of liquid inlet holes are formed in the liquid inlet area, the other end of each rotating shaft is provided with a liquid outlet area, and a plurality of liquid outlet holes are formed in the liquid outlet area; the curling wheel is formed by splicing two half wheel bodies and detachably connected to the rotating shaft, cooling annular grooves are formed in the half wheel bodies, one end of each cooling annular groove is communicated with the liquid inlet hole, the other end of each cooling annular groove is communicated with the liquid outlet hole, a cooling box is arranged on one side of the rack and connected with a liquid outlet pipe, and the liquid outlet pipe is connected with the liquid outlet area through a sealing bearing. Cooling water is arranged in the cooling box, a cooling water pump is arranged on the cooling box, the liquid inlet end of the cooling water pump is communicated with the interior of the cooling box, and the liquid outlet end is connected with a liquid inlet pipe which is connected with the liquid inlet area through a sealing bearing. The cooling device has the effect of improving the cooling efficiency of the cooling device.

Description

Technical Field

[0001] The present application relates to the technical field of polyester fiber processing, and in particular to a cooling device for a polyester fiber crimping machine. Background Art

[0002] Polyester fiber crimping machine is a special equipment used for crimping polyester and other synthetic fibers. Its core function is to make the fiber produce a stable crimp structure through mechanical action. The equipment is usually composed of a crimping wheel, a crimping knife, a cooling system and a preheating device. It has the characteristics of wide application range, high crimping quality, simple operation, low cost and strong durability.

[0003] Polyester fiber needs to go through three stages during the processing: preheating stage, extrusion stage and shaping cooling stage. Preheating stage: The fiber bundle is heated to the glass transition temperature (about 60-100℃) by steam or hot air to improve plasticity; Extrusion stage: The fiber bundle is clamped and pulled by a pair of high-speed rotating crimping wheels, and the crimping knife applies pressure to make the fiber bundle bend and deform in the stuffing box; Shaping cooling stage: The crimped fiber bundle needs to be cooled quickly to stabilize the crimp structure.

[0004] During traction, the friction between the crimping wheel and the fiber generates high temperature, which may cause burns on the fiber surface or thermal deformation of equipment components. Therefore, it is necessary to provide a device to cool the crimping wheel.

[0005] A Chinese patent with announcement number CN209779090U discloses a cooling device for a crimping wheel in a crimping machine, which includes a machine body, a motor is fixedly connected to the machine body, a cold oil tank is arranged on the outside of the machine body, a cold water tank is arranged on one side of the cold oil tank, two rotating shafts are linked to the motor, the outer sides of the rotating shafts are fixedly connected to the crimping wheels, one end of the two rotating shafts is rotatably connected to a connecting pipe, the end of the connecting pipe away from the crimping wheel is connected to the crimping shaft, the end of the crimping shaft is connected to an oil inlet pipe, the connecting pipe is connected to an oil outlet pipe, and the oil inlet pipe and the oil outlet pipe are both connected to the cold oil tank; this cooling device for the crimping wheel in the crimping machine can ensure low-temperature cooling of the crimping wheel to prevent quality reduction caused by excessive fiber temperature, and when the cooling oil fills the crimping shaft, the second motor is started, and the second motor draws the cooling oil in the crimping shaft back into the cold oil tank to ensure efficient circulation cooling of the crimping shaft.

[0006] With respect to the above-mentioned related technologies, a cavity is set in the winding wheel in the prior art, and cooling oil is transported into the cavity through the through hole on the rotating shaft to achieve the effect of cooling the winding wheel. However, the winding wheel in the prior art is hollow as a whole, so the cooling oil entering the cavity and discharging the cavity will occupy the through hole, resulting in that the heated cooling oil cannot be discharged quickly, resulting in a reduction in the circulation and transportation efficiency of the cooling oil, thereby reducing the cooling efficiency of the cooling device. Summary of the invention

[0007] In order to improve the cooling efficiency of a crimping wheel in a crimping machine, the present application provides a cooling device for a polyester fiber crimping machine.

[0008] The present application provides a cooling device for a polyester fiber crimping machine using the following technical solutions: A cooling device for a polyester fiber crimping machine comprises a frame and a crimping wheel, wherein the frame is provided with two rotating shafts and a driving assembly for driving the rotating shafts to rotate, a liquid inlet area is provided at one end of the rotating shaft, a plurality of liquid inlet holes are provided in the liquid inlet area, and a liquid outlet area is provided at the other end, a plurality of liquid outlet holes are provided in the liquid outlet area, the crimping wheel is assembled from two half-wheel bodies and is detachably connected to the rotating shaft, a cooling ring groove is provided on the half-wheel body, one end of the cooling ring groove is communicated with the liquid inlet hole, and the other end is communicated with the liquid outlet hole, a cooling box is provided on one side of the frame, a liquid outlet pipe is connected to the cooling box, and the liquid outlet pipe is connected to the liquid outlet area through a sealing bearing, cooling water is provided in the cooling box, a cooling water pump is provided on the cooling box, a liquid inlet end of the cooling water pump is communicated with the inside of the cooling box, and a liquid outlet end is connected with a liquid inlet pipe, and the liquid inlet pipe is connected to the liquid inlet area through a sealing bearing.

[0009] By adopting the above technical solution, when working, the two rotating shafts are rotated by the driving assembly, the temperature of the winding wheel is increased, the cooling water pump is started, the cooling water enters the liquid inlet area, enters the cooling ring groove through the liquid inlet hole, exchanges heat with the winding wheel during flow, then enters the liquid outlet area through the liquid outlet hole, and finally flows into the cooling box, achieving the effect of circulating water cooling the winding wheel. By setting the liquid inlet area, liquid inlet hole, liquid outlet area and liquid outlet hole, the liquid inlet end and liquid outlet end of the cooling ring groove are processed separately, ensuring that the flow of cooling water is coherent and smooth, and compared with the existing technology, the cooling efficiency of the cooling device is improved.

[0010] Optionally, the cooling ring groove is formed by connecting a plurality of vertical ring grooves and a transverse ring groove, and the vertical ring groove and the transverse ring groove are connected head to tail.

[0011] By adopting the above technical solution and setting a plurality of vertical ring grooves and transverse ring grooves, the flow path of the cooling water is extended while ensuring the continuous flow of the cooling water. In this way, the winding wheel has more heat to exchange heat with the cooling water per unit time, thereby improving the cooling efficiency of the winding wheel.

[0012] Optionally, a positioning notch is provided on the rotating shaft at a position corresponding to between the liquid inlet area and the liquid outlet area, the half wheel body is adapted to fit into the positioning notch, and the liquid inlet hole and the liquid outlet hole are both located within the range of the positioning notch.

[0013] By adopting the above technical solution, the positioning notch is used to limit the installation angle of the curling wheel on the rotating shaft, thereby further improving the rotation stability of the curling wheel.

[0014] Optionally, an assembly component is arranged between the half-wheel body and the rotating shaft, and the assembly component includes a connecting plate, a limiting block, a hook plate and a fixed block. The connecting plate is arranged in an L shape and one end is connected to the half-wheel body. The two connecting plates are arranged opposite to each other. The limiting block is provided with a T-slot and a limiting groove. The two connecting plates are adapted to the T-slot. The fixed block is connected to the rotating shaft. The fixing block is provided with a receiving groove, and a connecting shaft is connected to the receiving groove. The hook plate is in a horizontal state, and one end is snap-fitted into the limiting groove. The other end of the hook plate is provided with a waist-shaped groove, and the connecting shaft passes through the waist-shaped groove and is located in the end of the waist-shaped groove close to one end of the hook plate. A limiting member that limits the movement of the hook plate is provided in the fixed block.

[0015] By adopting the above technical solution, when assembling the curling wheel, the half wheel body is adapted into the positioning notch, and the hook plate is moved so that the connecting shaft is located in the end of the waist-shaped groove close to the other end of the hook plate, so that the hook plate is flipped, and then the two connecting plates are adapted into the T-slots on the limiting block, the hook plate is rotated to a horizontal state, and moved in the reverse direction, and one end of the hook plate is engaged with the limiting groove. At this time, the connecting shaft is located in the other end of the waist-shaped groove, and the rotation of the hook plate is limited by the limitation of the connecting shaft and the accommodating groove. Finally, the movement of the hook plate is limited by the limiting member, thereby limiting the freedom of the curling wheel and achieving the assembly effect of the curling wheel.

[0016] Optionally, the limiting member is a clamping plate, an avoidance groove is formed on the fixed block, a driving rod is passed through the fixed block, the limiting member is connected to one end of the driving rod and slides in the avoidance groove, a clamping spring is connected between the limiting member and the end wall of the avoidance groove, and a fixing plate is connected to the hook plate. When snap-fitted, the fixing plate is located in the avoidance groove, and the limiting member is located between the clamping spring and the fixing plate.

[0017] By adopting the above technical solution, when limiting the movement of the hook plate, the driving rod is pressed before flipping the hook plate, the limiting member moves, and the clamping spring is compressed until the hook plate is engaged with the limiting groove, and the driving rod is released, and the limiting member moves in the opposite direction under the action of the clamping spring until it fits the fixed part, thereby limiting the freedom of the hook plate and achieving the effect of limiting the movement of the hook plate.

[0018] Optionally, an arc-shaped flange is provided in the limiting groove, and one end of the hook plate is adapted to the arc-shaped flange.

[0019] By adopting the above technical solution and providing an arc-shaped flange, the difficulty of rotating the hook plate during the snap-fitting is increased, and the snap-fitting stability between the hook plate and the limiting groove is improved.

[0020] Optionally, a water supply pipe and several exhaust fans are provided at the top of the cooling box, and leaf windows are provided on the two opposite side walls of the cooling box. A cooling tube group and a water remover are installed in the cooling box. The water remover is located above the cooling tube group. Several downward-facing nozzles are provided on the cooling tube group, and the cooling tube group connects the two liquid outlet areas.

[0021] By adopting the above technical solution, when cooling water is cooled, the cooling water is transported to the liquid inlet area through the cooling pump, the heated cooling water enters the cooling pipe group through the liquid outlet area, and falls through the nozzle. When the water droplets fall, they come into contact with the air and evaporate to absorb heat. The water vapor eliminates the white mist through the dehydrator, and the hot air is discharged from the cooling box through the exhaust fan, thereby achieving the effect of cooling the cooling water.

[0022] Optionally, the driving assembly includes a driving motor, a driving gear and a connecting gear, the driving motor is mounted on the frame, the driving gear is connected to the output shaft of the driving motor, the connecting gear is connected to one end of the rotating shaft, two connecting gears are meshed, and the driving gear is meshed with one of the connecting gears.

[0023] By adopting the above technical solution, when the winding wheel is driven to rotate, the driving motor is started to rotate the driving gear, and the two rotating shafts are driven to rotate synchronously through the connecting gear, thereby achieving the effect of synchronous relative rotation of the two winding wheels.

[0024] Optionally, a sealing groove is provided on the half wheel body, and a sealing ring is installed in the sealing groove.

[0025] By adopting the above technical solution, the sealing ring is used to improve the sealing between the two half-wheel bodies, thereby reducing the possibility of water seepage in the curling wheel.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. During operation, the two rotating shafts are rotated by the driving assembly, the temperature of the winding wheel is increased, the cooling water pump is started, the cooling water enters the liquid inlet area, enters the cooling ring groove through the liquid inlet hole, exchanges heat with the winding wheel during flow, then enters the liquid outlet area through the liquid outlet hole, and finally flows into the cooling box, achieving the effect of circulating water cooling the winding wheel. By setting the liquid inlet area, liquid inlet hole, liquid outlet area and liquid outlet hole, the liquid inlet end and liquid outlet end of the cooling ring groove are processed separately, ensuring the flow of cooling water is coherent and smooth, and improving the cooling efficiency of the cooling device compared with the existing technology; 2. When assembling the curling wheel, fit the half wheel body into the positioning notch, move the hook plate so that the connecting shaft is located in the end of the waist-shaped groove close to the other end of the hook plate, and flip the hook plate. Then fit the two connecting plates into the T-slots on the limiting block, rotate the hook plate to a horizontal state, and move in the opposite direction. One end of the hook plate is engaged with the limiting groove. At this time, the connecting shaft is located in the other end of the waist-shaped groove. The rotation of the hook plate is limited by the connection shaft and the accommodating groove. Finally, the movement of the hook plate is limited by the limiting member, thereby limiting the freedom of the curling wheel and achieving the assembly effect of the curling wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the cooling device in the embodiment of the present application.

[0028] Figure 2 It is an exploded view used to illustrate the structure of the rotating shaft and the winding wheel in the embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view used to illustrate the structure of the rotating shaft and the winding wheel in the embodiment of the present application.

[0030] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0031] Figure 5 It is a cross-sectional view used to reflect the internal structure of the cooling box in the embodiment of the present application.

[0032] Description of reference numerals: 1, frame; 2, winding wheel; 21, half wheel body; 22, cooling ring groove; 221, vertical ring groove; 222, horizontal ring groove; 23, sealing ring; 3, rotating shaft; 31, liquid inlet area; 311, liquid inlet hole; 32, liquid outlet area; 321, liquid outlet hole; 33, positioning notch; 4, assembly component; 41, connecting plate; 42, limiting block; 421, T-slot; 422, limiting groove; 423, arc flange; 43. Hook plate; 431. Waist-shaped groove; 432. Fixed plate; 44. Fixed block; 441. Connecting shaft; 442. Avoidance groove; 5. Limiting member; 51. Driving rod; 52. Clamping spring; 6. Driving assembly; 61. Driving motor; 62. Driving gear; 63. Connecting gear; 7. Cooling box; 71. Exhaust fan; 72. Drop leaf window; 73. Cooling pipe group; 731. Nozzle; 74. Water remover; 75. Cooling water pump. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0034] The present application embodiment discloses a cooling device for a polyester fiber crimping machine. Figure 1 , Figure 2 and Figure 3The cooling device for a polyester fiber crimping machine includes a frame 1 and a crimping wheel 2. Two rotating shafts 3 are rotatably connected to the frame 1. One end of the rotating shaft 3 is provided with a liquid inlet area 31, and the other end is provided with a liquid outlet area 32. A positioning notch 33 is provided on the rotating shaft 3 at a position corresponding to the area between the liquid inlet area 31 and the liquid outlet area 32. A plurality of liquid inlet holes 311 are provided between the positioning notch 33 and the liquid inlet area 31, and a plurality of liquid outlet holes 321 are provided between the positioning notch 33 and the liquid outlet area 32.

[0035] Reference Figure 2 and Figure 3 The winding wheel 2 is composed of two half-wheel bodies 21, and a cooling ring groove 22 is opened on the half-wheel body 21. The cooling ring groove 22 is formed by a plurality of vertical ring grooves 221 and a horizontal ring groove 222 connected to each other, and the vertical ring groove 221 and the horizontal ring groove 222 are connected head to tail. The liquid inlet hole 311 is connected to one end of the cooling ring groove 22, and the liquid outlet hole 321 is connected to the other end of the cooling ring groove 22.

[0036] Reference Figure 3 and Figure 4 , a plurality of assembling components 4 are arranged on the rotating shaft 3. In this embodiment, four groups are taken as an example. The assembling components 4 include a connecting plate 41, a limiting block 42, a hook plate 43 and a fixing block 44. The connecting plate 41 is fixedly connected to each of the two half-wheel bodies 21. The connecting plate 41 is arranged in an L shape, and the two connecting plates 41 are arranged opposite to each other. The limiting block 42 is provided with a T-slot 421 and a limiting groove 422. The two connecting plates 41 are adapted to fit into the T-slot 421. An arc-shaped flange 423 is fixedly connected in the limiting groove 422. The arc-shaped flange 423 is used to improve the assembly stability of the winding wheel 2.

[0037] Reference Figure 4 The fixing block 44 is fixedly connected to the rotating shaft 3, and a receiving groove is formed on the fixing block 44, and a connecting shaft 441 is fixedly connected in the receiving groove. The hook plate 43 moves horizontally in the receiving groove, and one end of the hook plate 43 is engaged with the limiting groove 422 and is adapted to the arc flange 423. The other end of the hook plate 43 is formed with a waist groove 431, and the connecting shaft 441 is slidably engaged in the waist groove 431. When engaged, the connecting shaft 441 is located in the end of the waist groove 431 close to one end of the hook plate 43.

[0038] Reference Figure 4 The bottom wall of the receiving groove is provided with an escape groove 442, and a limiting member 5 is arranged in the escape groove 442, and the limiting member 5 is a tightening plate. A driving rod 51 is passed through the escape groove 442, and the limiting member 5 is fixedly connected to one end of the driving rod 51, and a tightening spring 52 is installed between the limiting member 5 and the side wall of the escape groove 442. A fixing plate 432 is fixedly connected to the side wall of the hook plate 43. When in a horizontal state, the fixing plate 432 is located in the escape groove 442, and the limiting member 5 is located between the tightening spring 52 and the fixing plate 432.

[0039] When installing the winding wheel 2, the two half-wheel bodies 21 are embedded in the positioning notch 33, and then the two connecting plates 41 are adapted to the T-slot 421, and the driving rod 51 is pressed to move the limiting member 5, and the pressing spring 52 is compressed, and the hook plate 43 is flipped to a horizontal state, and the hook plate 43 moves, so that one end of the hook plate 43 is engaged with the limiting groove 422 and adapted to the arc flange 423. At this time, the connecting shaft 441 is located in the end of the waist groove 431 close to one end of the hook plate 43, and the driving rod 51 is released. Under the action of the pressing spring 52, the limiting member 5 moves and fits the fixing plate 432, thereby limiting the movement of the hook plate 43, limiting the degree of freedom of the half-wheel body 21, and realizing the installation of the winding wheel 2.

[0040] Reference Figure 2 A sealing groove is provided on the half wheel body 21, and the sealing groove surrounds the cooling ring groove 22. A sealing ring 23 is provided in the sealing groove, and the sealing ring 23 is made of fluorosilicone rubber. The sealing ring 23 is used to improve the sealing performance of the crimping wheel 2.

[0041] Reference Figure 1 A driving assembly 6 is provided on the frame 1, and the driving assembly 6 includes a driving motor 61, a driving gear 62, and a connecting gear 63. The driving motor 61 is mounted on the frame 1, and the driving gear 62 is fixedly connected to the output shaft of the driving motor 61. One connecting gear 63 is fixedly connected to each end of the two rotating shafts 3, and the two connecting gears 63 are meshed with each other, and one of the connecting gears 63 is meshed with the driving gear 62.

[0042] When rotating, the driving motor 61 is started to rotate the driving gear 62, thereby driving the connecting gear 63 to rotate, thereby achieving the effect of relative rotation of the two winding wheels 2.

[0043] Reference Figure 1 and Figure 5 A cooling box 7 is provided on one side of the frame 1. A water supply pipe and a plurality of exhaust ports are provided on the top of the cooling box 7. An exhaust fan 71 is installed at the exhaust port. Drop leaf windows 72 are provided on the opposite side walls of the cooling box 7. A cooling pipe group 73 and a water remover 74 are fixedly connected inside the cooling box 7. A plurality of nozzles 731 facing downward are fixedly connected to the cooling pipe group 73. A liquid outlet pipe is commonly connected between the two liquid outlet areas 32 and the cooling pipe group 73. The liquid outlet pipe is connected to the rotating shaft 3 through a sealed bearing. Cooling water is provided at the bottom of the cooling box 7. The water remover 74 is located above the cooling pipe group 73. The water remover 74 covers the inside of the cooling box 7. A cooling water pump 75 is provided between the cooling box 7 and the frame 1. The liquid inlet end of the cooling water pump 75 is connected to the inside of the cooling box 7. The liquid outlet end and the two liquid inlet areas 31 are commonly connected by a liquid inlet pipe. The liquid inlet pipe is connected to the rotating shaft 3 through a sealed bearing.

[0044] During cooling, the cooling water pump 75 is started, and the cooling water is transported to the liquid inlet area 31 through the cooling water pump 75, and enters from one end of the cooling ring groove 22. During the flow, it exchanges heat with the curling wheel 2 body to cool the curling wheel 2, and then flows into the liquid outlet area 32 from the other end of the cooling ring groove 22, and falls back into the cooling box 7 through the liquid outlet pipe, the cooling pipe group 73 and the nozzle 731 in sequence. In this process, it comes into contact with the air inside the cooling box 7, the heated cooling water absorbs heat and evaporates, the dehumidifier 74 eliminates the white mist, and the heat is discharged from the cooling box 7 with the exhaust fan 71, thereby achieving the effect of cooling water heat dissipation.

[0045] The implementation principle of a cooling device for a polyester fiber curling machine in an embodiment of the present application is as follows: when assembling the curling wheel 2, the two half-wheel bodies 21 are both embedded in the limiting notch, the limiting block 42 is sleeved between the two connecting plates 41, the driving rod 51 is pressed, the limiting member 5 moves, the pressing spring 52 is compressed, the hook plate 43 is flipped to a horizontal state, and the hook plate 43 is moved, one end of the hook plate 43 is snap-fitted with the limiting groove 422, at this time, the connecting shaft 441 is located in the end of the waist-shaped groove 431 close to one end of the hook plate 43, the driving rod 51 is released, and the limiting member 5 moves in the opposite direction under the action of the pressing spring 52 until it fits the limiting member 5 to limit the movement of the hook plate 43, thereby limiting the degree of freedom of the half-wheel body 21 and realizing the installation of the curling wheel 2.

[0046] During cooling, the cooling water pump 75 is started, the cooling water enters the liquid inlet area 31, enters one end of the cooling ring groove 22 through the liquid inlet hole 311, exchanges heat with the curling wheel 2, and then enters the liquid outlet area 32 from the other end of the cooling ring groove 22, and then enters the cooling pipe group 73 through the liquid outlet pipe, and is sprayed out from the nozzle 731. The heated cooling water contacts the air in the cooling box 7 and evaporates to absorb heat. The dehumidifier 74 eliminates the white mist, and the exhaust fan 71 discharges the heat out of the cooling box 7, thereby achieving the effect of cooling the curling wheel 2.

[0047] By providing the liquid inlet area 31, the liquid inlet hole 311, the liquid outlet area 32 and the liquid outlet hole 321, the liquid inlet end and the liquid outlet end of the cooling ring groove 22 are treated separately to ensure the continuous and smooth flow of cooling water, thereby improving the cooling efficiency of the cooling device compared to the prior art.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cooling device for a polyester fiber crimping machine, characterized in that: The invention comprises a frame (1) and a winding wheel (2), wherein the frame (1) is provided with two rotating shafts (3) and a driving assembly (6) for driving the rotating shafts (3) to rotate, wherein one end of the rotating shaft (3) is provided with a liquid inlet area (31), wherein the liquid inlet area (31) is provided with a plurality of liquid inlet holes (311), and the other end is provided with a liquid outlet area (32), wherein the liquid outlet area (32) is provided with a plurality of liquid outlet holes (321), wherein the winding wheel (2) is assembled from two half wheel bodies (21) and is detachably connected to the rotating shaft (3), wherein the half wheel body (21) is provided with a cooling ring groove (22), wherein the One end of the cooling ring groove (22) is connected to the liquid inlet hole (311), and the other end is connected to the liquid outlet hole (321). A cooling box (7) is provided on one side of the frame (1). A liquid outlet pipe is connected to the cooling box (7). The liquid outlet pipe is connected to the liquid outlet area (32) through a sealing bearing. Cooling water is provided in the cooling box (7). A cooling water pump (75) is provided on the cooling box (7). The liquid inlet end of the cooling water pump (75) is connected to the inside of the cooling box (7), and the liquid outlet end is connected to the liquid inlet pipe. The liquid inlet pipe is connected to the liquid inlet area (31) through a sealing bearing.

2. The cooling device for a polyester fiber crimping machine according to claim 1, characterized in that: The cooling annular groove (22) is formed by a plurality of vertical annular grooves (221) and a transverse annular groove (222) being connected, and the vertical annular groove (221) and the transverse annular groove (222) are connected end to end.

3. The cooling device for a polyester fiber crimping machine according to claim 1, characterized in that: A positioning notch (33) is provided on the rotating shaft (3) at a position corresponding to the position between the liquid inlet area (31) and the liquid outlet area (32); the half wheel body (21) is adapted to fit into the positioning notch (33); and the liquid inlet hole (311) and the liquid outlet hole (321) are both located within the range of the positioning notch (33).

4. The cooling device for a polyester fiber crimping machine according to claim 1, characterized in that: An assembling component (4) is arranged between the half wheel body (21) and the rotating shaft (3), and the assembling component (4) comprises a connecting plate (41), a limiting block (42), a hook plate (43) and a fixing block (44). The connecting plate (41) is arranged in an L shape, and one end is connected to the half wheel body (21). The two connecting plates (41) are arranged opposite to each other. The limiting block (42) is provided with a T-shaped groove (421) and a limiting groove (422). The two connecting plates (41) are adapted to fit in the T-shaped groove (421). The fixing block (44) is connected to the half wheel body (21). On the rotating shaft (3), the fixed block (44) is provided with a receiving groove, and a connecting shaft (441) is connected to the receiving groove. The hook plate (43) is in a horizontal state, and one end is snap-fitted into the limiting groove (422). The other end of the hook plate (43) is provided with a waist-shaped groove (431). The connecting shaft (441) passes through the waist-shaped groove (431) and is located in the end of the waist-shaped groove (431) close to one end of the hook plate (43). A limiting member (5) for limiting the movement of the hook plate (43) is provided in the fixed block (44).

5. The cooling device for a polyester fiber crimping machine according to claim 4, characterized in that: The limiting member (5) is a clamping plate, an avoidance groove (442) is formed on the fixing block (44), a driving rod (51) is passed through the fixing block (44), the limiting member (5) is connected to one end of the driving rod (51), and is slidably fitted in the avoidance groove (442), a clamping spring (52) is connected between the limiting member (5) and the end wall of the avoidance groove (442), a fixing plate (432) is connected to the hook plate (43), and when snap-fitted, the fixing plate (432) is located in the avoidance groove (442), and the limiting member (5) is located between the clamping spring (52) and the fixing plate (432).

6. The cooling device for a polyester fiber crimping machine according to claim 4, characterized in that: An arc-shaped flange (423) is arranged in the limiting groove (422), and one end of the hook plate (43) is adapted to the arc-shaped flange (423).

7. The cooling device for a polyester fiber crimping machine according to claim 1, characterized in that: A water supply pipe and a plurality of exhaust fans (71) are arranged at the top of the cooling box (7), and leaf windows (72) are arranged on the opposite side walls of the cooling box (7). A cooling pipe group (73) and a water remover (74) are installed in the cooling box (7), and the water remover (74) is located above the cooling pipe group (73). The cooling pipe group (73) is provided with a plurality of nozzles (731) facing downward, and the cooling pipe group (73) is connected to the two liquid outlet areas (32).

8. The cooling device for a polyester fiber crimping machine according to claim 1, characterized in that: The driving assembly (6) comprises a driving motor (61), a driving gear (62) and a connecting gear (63); the driving motor (61) is mounted on the frame (1); the driving gear (62) is connected to an output shaft of the driving motor (61); the connecting gear (63) is connected to one end of the rotating shaft (3); two connecting gears (63) are meshed, and the driving gear (62) is meshed with one of the connecting gears (63).

9. The cooling device for a polyester fiber crimping machine according to claim 1, characterized in that: The half wheel body (21) is provided with a sealing groove, and a sealing ring (23) is installed in the sealing groove.

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