Cooling equipment for polypropylene filament yarn production and processing and production process

Abstract

The invention relates to the related technical field of textile equipment, in particular to cooling equipment for polypropylene filament yarn production and processing and a production technology.The cooling equipment comprises a base, polypropylene filament yarn forming equipment, a cooling wheel, a guide wheel and a cooling water tank, a mounting plate is fixedly mounted on the base, a mounting shaft is fixedly mounted on the mounting plate, and a main air channel is formed in the mounting shaft; an air pipe connector is formed at a port of the main air passage; the cooling wheel is rotationally mounted on the mounting shaft through the first-stage sealing bearing and the second-stage sealing bearing, the first-stage air channel, the second-stage air channel, the third-stage air channel, the fourth-stage air channel and the cooling air channel are formed in the cooling wheel, and it is guaranteed that the lower side edge of the guide wheel makes contact with water in the cooling water tank, so that the cooling air channel is soaked by the water in the cooling water tank, and the cooling effect is improved. Therefore, the humidity of the air flow blown out of the cooling air channel is increased, the specific heat capacity of the air flow is increased, the air flow can take away more heat, and the purpose of improving the cooling and shaping efficiency of the cellosilk is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field related to textile equipment, and in particular to cooling equipment and a production process for producing and processing polypropylene filaments. Background Art

[0002] The existing Chinese patent document with announcement number CN113758117A discloses a fiber rapid cooling device and cooling method for polypropylene line processing, and the scheme includes a cooling control plate, two active cooling wheels, a driving mechanism, two wheel cooling mechanisms, two driven cooling wheels, a driving wheel, a cooling box, a coolant mechanism and a blower mechanism. The two active cooling wheels are rotatably mounted on one side of the cooling control plate, the driving mechanism is arranged on the cooling control plate, the driving mechanism is connected to the two active cooling wheels, the driving mechanism includes two driven sprockets, a chain, a stepper motor 2 and a driving sprocket, one side of the two active cooling wheels is fixedly mounted with a round rod, the two round rods are rotatably mounted on the cooling control plate, one end of the two round rods is fixedly mounted with a driven sprocket, the two driven sprockets are transmission-connected with the same chain, and one side of the cooling control plate is fixedly mounted with Stepper motor 2, a driving sprocket is fixedly connected to the output shaft of stepper motor 2, the driving sprocket is connected with the chain transmission, the wheel cooling mechanism is arranged on the corresponding active cooling wheel, the two driven cooling wheels are rotatably mounted on the cooling control board, the cooling box is fixedly mounted on one side of the cooling control board, the top of the cooling box is an opening, the driving wheel is rotatably mounted in the cooling box, the coolant mechanism is arranged in the cooling box, the blowing mechanism is arranged on the cooling control board, two circulating pumps are fixedly mounted on one side of the cooling control board, connecting pipes are fixedly mounted on the liquid outlets of the two circulating pumps, the two connecting pipes are arranged on the top of the driving wheel, circulating conveying pipes are fixedly mounted on the liquid inlets of the two circulating pumps, one end of the two circulating conveying pipes are fixedly connected in the cooling box, and the two circulating conveying pipes are fixedly connected with refrigerators; However, in the above technical solution, the hair blowing mechanism only blows air simply, and its cooling effect is poor. When the cooling effect is improved by increasing the wind speed, the fiber filaments may be damaged due to the excessive wind speed, thereby affecting the quality of the final product. For this reason, the present invention proposes a cooling device and a production process for the production and processing of polypropylene filaments to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a cooling device and a production process for the production and processing of polypropylene filaments to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: A cooling device for the production and processing of polypropylene filaments, comprising: A base, a mounting plate is fixedly mounted on the base, a mounting shaft is fixedly mounted on the mounting plate, a main airway is opened on the mounting shaft, an air pipe connector is formed at the port of the main airway, and the air pipe connector is connected to the air supply port of the air supply device through an air pipe; Polypropylene filament forming equipment, the polypropylene filament forming equipment is fixedly mounted on a base through a support; A cooling wheel, wherein the cooling wheel is rotatably mounted on the mounting shaft through a primary sealed bearing and a secondary sealed bearing, and the side wall of the cooling wheel is concavely arranged, and the cooling wheel is provided with a primary air duct, a secondary air duct, a tertiary air duct, a quaternary air duct and a cooling air duct; A guide wheel, wherein the guide wheel is rotatably mounted on the mounting plate via a rotating shaft, and the fiber filaments formed by the polypropylene filament forming device sequentially pass through the lower side of the cooling wheel and the upper side of the guide wheel; A cooling water tank is fixed on the base, and the cooling water tank is arranged corresponding to the guide wheel, and the lower side of the guide wheel is in contact with the water in the cooling water tank, and the fiber filaments are not in contact with the water in the cooling water tank.

[0005] Preferably, a ring gear is integrally formed on the inner side surface of the cooling wheel, a reduction motor is fixedly mounted on the mounting plate, a transmission gear is fixedly mounted on the output shaft of the reduction motor, and the transmission gear is meshed with the ring gear.

[0006] Preferably, a sealing ring mounting seat is integrally formed on the mounting shaft, a primary air groove is formed on the sealing ring mounting seat, a rubber sealing ring is installed on the sealing ring mounting seat, a secondary air groove is formed on the rubber sealing ring, and the primary air groove and the secondary air groove are relatively aligned.

[0007] Preferably, an alignment groove is provided on the outer wall of the sealing ring mounting seat, and an alignment protrusion is provided on the inner wall of the rubber sealing ring. The alignment protrusion is aligned with the alignment groove, and when the rubber sealing ring is actually installed, the alignment protrusion is embedded in the alignment groove, and the secondary air groove and the alignment protrusion are staggered.

[0008] Preferably, an air chamber is opened at the end of the main air duct, the first-level air groove is connected to the air chamber, the first-level air duct is arranged in a circle around the circumference of the cooling wheel, the second-level air duct is connected to the first-level air duct, and the second-level air duct is symmetrically arranged on both sides of the first-level air duct, the third-level air duct is connected to the second-level air duct, the fourth-level air duct is connected to the third-level air duct, the cooling air duct is connected to the fourth-level air duct, and when the cooling air duct is aligned with the fiber filaments in the direction of the polypropylene filament forming equipment, the first-level air duct connected to the cooling air duct is located in the middle of the first-level air groove.

[0009] Preferably, when the cooling air duct moves to the lowermost side, the water in the cooling water tank completely submerges the cooling air duct on the corresponding side, the third-level air duct and the fourth-level air duct are arranged at an angle of one hundred and twenty degrees, and when the cooling air duct is completely separated from the water in the cooling water tank, the end of the fourth-level air duct corresponding to the cooling air duct is arranged vertically downward.

[0010] Preferably, a water storage mechanism is provided in the cooling air duct, and the water storage mechanism includes a water storage ring and a connecting rod. The water storage ring is a circular ring structure, and a plurality of water storage rings are arranged at equal intervals, and the water storage rings are connected by connecting rods. Water storage micropores are opened on the water storage ring, and a plurality of water storage micropores are evenly arranged on the water storage ring, and the straight line where the water storage ring is located is perpendicular to the axis of the cooling air duct.

[0011] Preferably, a connecting ring is fixedly welded on the outer end of the connecting rod, an elastic sheet is fixedly welded on the outer wall of the connecting ring, and a guide rod is fixedly welded on the inner end side wall of the connecting rod, the end of the guide rod is hemispherical, and the end of the guide rod is arranged in contact with the side wall of the cooling air duct, and a snap-fit ​​groove is provided at the port of the cooling air duct, and the snap-fit ​​groove is an annular groove, and when the elastic sheet is in a reset state, the end of the elastic sheet is snapped into the snap-fit ​​groove.

[0012] Preferably, a cross bar is integrally formed in the connecting ring, a pull rod is welded on the cross bar, when the elastic sheet is engaged in the engagement groove, the end of the pull rod protrudes outside the port of the cooling air duct, and an anti-slip protrusion is integrally formed on the side wall of the pull rod.

[0013] A polypropylene filament production process is realized by the cooling equipment for polypropylene filament production and processing. The production process is to shape fiber filaments by polypropylene filament forming equipment, and then supply air by air supply equipment, so that the airflow passes through the main airway, the air chamber, the primary airway, the secondary airway, the tertiary airway and the quaternary airway in sequence, and finally blows out through the cooling airway, so as to achieve the purpose of cooling and shaping the fiber filaments, and the lower side part of the cooling wheel will be immersed in the cooling water tank for cooling and cooling, and the cooling airway will be soaked, so as to increase the humidity of the airflow blown out of the cooling airway, thereby increasing the specific heat capacity of the airflow, so that the airflow can take away more heat, thereby improving the cooling and shaping effect on the fiber filaments.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. A cooling device for the production and processing of polypropylene filaments is provided, which is composed of a base, a polypropylene filament forming device, a cooling wheel, a guide wheel and a cooling water tank. The cooling wheel is rotatably mounted on the mounting shaft through a primary sealed bearing and a secondary sealed bearing. A primary air duct, a secondary air duct, a tertiary air duct, a quaternary air duct and a cooling air duct are provided on the cooling wheel. The lower side of the guide wheel is ensured to be in contact with the water in the cooling water tank, so that the cooling air duct is wetted by the water in the cooling water tank, thereby increasing the humidity of the air flow blown out of the cooling air duct, increasing the specific heat capacity of the air flow, and allowing the air flow to take away more heat, thereby achieving the purpose of improving the cooling and shaping efficiency of the fiber filaments. 2. A water storage mechanism composed of a water storage ring and a connecting rod is arranged in the cooling air duct, and water storage micropores are opened on the water storage ring. It is ensured that the straight line where the water storage ring is located is perpendicular to the axis of the cooling air duct. By utilizing the Bernoulli principle, the water accumulated in the water storage micropores can be slowly precipitated under the action of negative pressure, thereby ensuring the moistening effect on the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle; Figure 3 It is a cross-sectional view of the present invention along the vertical symmetry plane of the cooling wheel; Figure 4 for Figure 3 A magnified schematic diagram of the structure at B in the middle; Figure 5 This is a schematic diagram of the cooling wheel structure of the present invention; Figure 6 This is a schematic diagram of the shaft installation structure of the present invention; Figure 7 This is a schematic diagram of the structure of the rubber sealing ring of the present invention; Figure 8 A half-section view of the cooling wheel of the present invention along the cooling air passage; Fig. 9 for Figure 8 A magnified schematic diagram of the structure at C in the middle; Fig.10 for Figure 8 A magnified schematic diagram of the structure at D in the middle; Fig.11 for Fig.10 The enlarged schematic diagram of the structure at E in the middle; Fig.12 It is a schematic diagram of the water storage mechanism of the present invention; Fig.13 for Fig.12 The enlarged schematic diagram of the structure at F in the middle; Fig.14It is a cross-sectional view of the cooling wheel of the present invention along the third-level air duct and the fourth-level air duct; Fig.15 for Fig.14 Enlarged schematic diagram of the structure at G in the middle.

[0016] In the figure: base 1, polypropylene filament molding equipment 2, cooling wheel 3, guide wheel 4, cooling water tank 5, mounting plate 6, support 7, mounting shaft 8, reduction motor 9, transmission gear 10, ring gear 11, primary sealed bearing 12, secondary sealed bearing 13, sealing ring mounting seat 14, rubber sealing ring 15, primary air groove 16, secondary air groove 17, main air duct 18, air pipe connector 19, air chamber 20, alignment groove 21, alignment protrusion 22, primary air duct 23, secondary air duct 24, tertiary air duct 25, quaternary air duct 26, water storage mechanism 27, water storage ring 28, connecting rod 29, guide rod 30, connecting ring 31, elastic sheet 32, cross bar 33, pull rod 34, engaging groove 35, anti-slip protrusion 36, cooling air duct 39, fiber filament 40. DETAILED DESCRIPTION

[0017] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 15 The present invention provides the following three preferred embodiments: Embodiment 1, a cooling device for the production and processing of polypropylene filaments, comprising a base 1, a polypropylene filament forming device 2, a cooling wheel 3, a guide wheel 4 and a cooling water tank 5, a mounting plate 6 is fixedly mounted on the base 1, a mounting shaft 8 is fixedly mounted on the mounting plate 6, a main airway 18 is provided on the mounting shaft 8, an air pipe connector 19 is formed at the port of the main airway 18, and the air pipe connector 19 is connected to the air supply port of the air supply device through an air pipe, the polypropylene filament forming device 2 is fixedly mounted on the base 1 through a support 7, the cooling wheel 3 is rotatably mounted on the mounting shaft 8 through a primary sealed bearing 12 and a secondary sealed bearing 13, and the side wall of the cooling wheel 3 is concavely arranged, and a primary airway 23 and a secondary airway 23 are provided on the cooling wheel 3. 4. The tertiary air duct 25, the quaternary air duct 26 and the cooling air duct 39, the guide wheel 4 is rotatably mounted on the mounting plate 6 through a rotating shaft, the fiber filaments 40 formed by the polypropylene filament forming equipment 2 pass through the lower side of the cooling wheel 3 and the upper side of the guide wheel 4 in sequence, the cooling water tank 5 is fixed on the base 1, and the cooling water tank 5 is arranged corresponding to the guide wheel 4, and the lower side of the guide wheel 4 is in contact with the water in the cooling water tank 5, and the fiber filaments 40 are not in contact with the water in the cooling water tank 5, the inner side of the cooling wheel 3 is integrally formed with a ring gear 11, a reduction motor 9 is fixedly mounted on the mounting plate 6, and a transmission gear 10 is fixedly mounted on the output shaft of the reduction motor 9, and the transmission gear 10 is meshed with the ring gear 11.

[0019] A sealing ring mounting seat 14 is integrally formed on the mounting shaft 8, and a primary air groove 16 is provided on the sealing ring mounting seat 14. A rubber sealing ring 15 is installed on the sealing ring mounting seat 14, and a secondary air groove 17 is provided on the rubber sealing ring 15. The primary air groove 16 and the secondary air groove 17 are relatively aligned. An alignment groove 21 is provided on the outer side wall of the sealing ring mounting seat 14, and an alignment protrusion 22 is provided on the inner side wall of the rubber sealing ring 15. The alignment protrusion 22 is aligned with the alignment groove 21, and when the rubber sealing ring 15 is actually installed, the alignment protrusion 22 is embedded in the alignment groove 21, and the secondary air groove 17 is staggered with the alignment protrusion 22. By setting the alignment protrusion 22 and the alignment groove 21, it is ensured that the primary air groove 16 and the secondary air groove 17 are always relatively aligned.

[0020] An air chamber 20 is provided at the end of the main air duct 18, the first-level air groove 16 is connected to the air chamber 20, the first-level air duct 23 is arranged in a circle around the circumference of the cooling wheel 3, the second-level air duct 24 is connected to the first-level air duct 23, and the second-level air duct 24 is symmetrically arranged on both sides of the first-level air duct 23, the tertiary air duct 25 is connected to the secondary air duct 24, the fourth-level air duct 26 is connected to the tertiary air duct 25, and the cooling air duct 39 is connected to the fourth-level air duct 26. When the cooling air duct 39 is aligned with the fiber filament 40 in the direction of the polypropylene filament forming equipment 2, the first-level air duct 23 connected to the cooling air duct 39 is located in the middle of the first-level air groove 16.

[0021] When the cooling air duct 39 moves to the lowermost side, the water in the cooling water tank 5 completely submerges the cooling air duct 39 on the corresponding side, and the tertiary air duct 25 and the quaternary air duct 26 are arranged at an angle of 120 degrees, and when the cooling air duct 39 is completely separated from the water in the cooling water tank 5, the end of the quaternary air duct 26 corresponding to the cooling air duct 39 is arranged vertically downward, and the cooling equipment for the production and processing of polypropylene filaments is arranged, which is composed of a base 1, a polypropylene filament forming equipment 2, a cooling wheel 3, a guide wheel 4 and a cooling water tank 5, and the primary sealed bearing 12, the secondary sealed bearing 12, the secondary sealed bearing 12, the secondary sealed bearing 12, the secondary sealed bearing 12, the secondary sealed bearing 12, the secondary sealed bearing 12, the secondary sealed bearing 12, the quaternary ... The sealed bearing 13 rotatably mounts the cooling wheel 3 on the mounting shaft 8, and opens a primary air duct 23, a secondary air duct 24, a tertiary air duct 25, a quaternary air duct 26 and a cooling air duct 39 on the cooling wheel 3, and ensures that the lower side of the guide wheel 4 is in contact with the water in the cooling water tank 5, so that the cooling air duct 39 is soaked by the water in the cooling water tank 5, thereby increasing the humidity of the air flow blown out of the cooling air duct 39, so as to increase the specific heat capacity of the air flow, so that the air flow can take away more heat, thereby achieving the purpose of improving the cooling and shaping efficiency of the fiber filaments 40.

[0022] Embodiment 2, on the basis of embodiment 1, a water storage mechanism 27 is provided in the cooling air duct 39, the water storage mechanism 27 includes a water storage ring 28 and a connecting rod 29, the water storage ring 28 is a circular ring structure, and a plurality of water storage rings 28 are arranged at equal intervals, and the water storage rings 28 are connected by connecting rods 29, water storage micropores 38 are provided on the water storage ring 28, and a plurality of water storage micropores 38 are evenly arranged on the water storage ring 28, and the straight line where the water storage ring 28 is located is perpendicular to the axis of the cooling air duct 39, by providing a water storage mechanism 27 composed of a water storage ring 28 and a connecting rod 29 in the cooling air duct 39, and providing water storage micropores 38 on the water storage ring 28, and ensuring that the straight line where the water storage ring 28 is located is perpendicular to the axis of the cooling air duct 39, thereby utilizing the Bernoulli principle, the water accumulated in the water storage micropores 38 can be slowly precipitated under the action of negative pressure, thereby ensuring the wetting effect on the airflow.

[0023] A connecting ring 31 is fixedly welded to the outer end of the connecting rod 29, an elastic sheet 32 ​​is fixedly welded on the outer wall of the connecting ring 31, and a guide rod 30 is fixedly welded on the inner end side wall of the connecting rod 29. The end of the guide rod 30 is hemispherical, and the end of the guide rod 30 is arranged in contact with the side wall of the cooling air duct 39. A snap-fit ​​groove 35 is provided at the end of the cooling air duct 39, and the snap-fit ​​groove 35 is an annular groove. When the elastic sheet 32 ​​is in the reset state, the end of the elastic sheet 32 ​​is snapped into the snap-fit ​​groove 35, which is convenient for the staff to disassemble and clean the water storage mechanism 27.

[0024] A cross bar 33 is integrally formed in the connecting ring 31, and a pull rod 34 is welded on the cross bar 33. When the elastic sheet 32 ​​is engaged in the engagement groove 35, the end of the pull rod 34 protrudes outside the port of the cooling air duct 39, and an anti-slip protrusion 36 is integrally formed on the side wall of the pull rod 34, which makes it convenient for the staff to take out the water storage mechanism 27 through the clamping mechanism.

[0025] Embodiment 3, on the basis of embodiment 2, a polypropylene filament production process is provided, and the polypropylene filament production process is realized by the cooling equipment for polypropylene filament production and processing. The production process is to form the fiber filament 40 by the polypropylene filament forming equipment 2, and then supply air by the air supply equipment, so that the air flow passes through the main air duct 18, the air chamber 20, the primary air duct 23, the secondary air duct 24, the tertiary air duct 25 and the quaternary air duct 26 in sequence, and finally blown out through the cooling air duct 39, so as to form the fiber filament 40 for the purpose of cooling and shaping, and the lower side part of the cooling wheel 3 will be immersed in the cooling water tank 5 for cooling and cooling, and the cooling air duct 39 will be soaked, so that the humidity of the air flow blown out of the cooling air duct 39 is increased, so that the specific heat capacity of the air flow is increased, so that the air flow can take away more heat, thereby improving the cooling and shaping effect of the fiber filament 40.

[0026] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A cooling device for the production and processing of polypropylene filaments, characterized in that: include: A base (1), wherein a mounting plate (6) is fixedly mounted on the base (1), a mounting shaft (8) is fixedly mounted on the mounting plate (6), a main air passage (18) is formed on the mounting shaft (8), an air pipe connector (19) is formed at the port of the main air passage (18), and the air pipe connector (19) is connected to the air supply port of the air supply device via an air pipe; A polypropylene filament forming device (2), wherein the polypropylene filament forming device (2) is fixedly mounted on a base (1) via a support (7); A cooling wheel (3), the cooling wheel (3) being rotatably mounted on a mounting shaft (8) via a primary sealed bearing (12) and a secondary sealed bearing (13), and the side wall of the cooling wheel (3) being arranged in a concave manner, and the cooling wheel (3) being provided with a primary air duct (23), a secondary air duct (24), a tertiary air duct (25), a quaternary air duct (26) and a cooling air duct (39); A guide wheel (4), wherein the guide wheel (4) is rotatably mounted on a mounting plate (6) via a rotating shaft, and the fiber filaments (40) formed by the polypropylene filament forming device (2) sequentially pass through the lower side of the cooling wheel (3) and the upper side of the guide wheel (4); A cooling water tank (5), wherein the cooling water tank (5) is fixed on the base (1), and the cooling water tank (5) and the guide wheel (4) are arranged correspondingly, and the lower side of the guide wheel (4) is in contact with the water in the cooling water tank (5), and the fiber filaments (40) are not in contact with the water in the cooling water tank (5).

2. The cooling device for producing and processing polypropylene filament according to claim 1, characterized in that: A ring gear (11) is integrally formed on the inner side surface of the cooling wheel (3), a reduction motor (9) is fixedly mounted on the mounting plate (6), a transmission gear (10) is fixedly mounted on the output shaft of the reduction motor (9), and the transmission gear (10) is meshed with the ring gear (11).

3. The cooling device for producing and processing polypropylene filament according to claim 2, characterized in that: A sealing ring mounting seat (14) is integrally formed on the mounting shaft (8), a primary air groove (16) is provided on the sealing ring mounting seat (14), a rubber sealing ring (15) is mounted on the sealing ring mounting seat (14), a secondary air groove (17) is provided on the rubber sealing ring (15), and the primary air groove (16) and the secondary air groove (17) are arranged to be aligned with each other.

4. The cooling device for producing and processing polypropylene filaments according to claim 3 is characterized in that: An alignment groove (21) is provided on the outer wall of the sealing ring mounting seat (14), and an alignment protrusion (22) is provided on the inner wall of the rubber sealing ring (15). The alignment protrusion (22) is aligned with the alignment groove (21), and when the rubber sealing ring (15) is actually installed, the alignment protrusion (22) is embedded in the alignment groove (21), and the secondary air groove (17) and the alignment protrusion (22) are offset.

5. The cooling device for producing and processing polypropylene filament according to claim 3, characterized in that: An air chamber (20) is provided at the end of the main air channel (18), the primary air groove (16) is connected to the air chamber (20), the primary air channel (23) is arranged in a circle around the circumference of the cooling wheel (3), the secondary air channel (24) is connected to the primary air channel (23), and the secondary air channel (24) is symmetrically arranged on both sides of the primary air channel (23), the tertiary air channel (25) is connected to the secondary air channel (24), the quaternary air channel (26) is connected to the tertiary air channel (25), and the cooling air channel (39) is connected to the quaternary air channel (26). When the cooling air channel (39) is aligned with the fiber filaments (40) in the direction of the polypropylene filament forming device (2), the primary air channel (23) connected to the cooling air channel (39) is located in the middle of the primary air groove (16).

6. The cooling device for producing and processing polypropylene filaments according to claim 5, characterized in that: When the cooling air duct (39) moves to the lowest side, the water in the cooling water tank (5) completely submerges the cooling air duct (39) on the corresponding side, the tertiary air duct (25) and the quaternary air duct (26) are arranged at an angle of one hundred and twenty degrees, and when the cooling air duct (39) is completely separated from the water in the cooling water tank (5), the end of the quaternary air duct (26) corresponding to the cooling air duct (39) is arranged vertically downward.

7. The cooling device for producing and processing polypropylene filaments according to claim 6, characterized in that: A water storage mechanism (27) is provided in the cooling air passage (39), the water storage mechanism (27) comprising a water storage ring (28) and a connecting rod (29), the water storage ring (28) being a circular ring structure, and the water storage ring (28) being provided with a plurality of water storage rings at equal intervals, and the water storage rings (28) being connected by the connecting rod (29), the water storage ring (28) being provided with water storage micropores (38), the water storage micropores (38) being evenly provided on the water storage ring (28), and the straight line where the water storage ring (28) is located is perpendicular to the axis of the cooling air passage (39).

8. The cooling device for producing and processing polypropylene filaments according to claim 7, characterized in that: A connecting ring (31) is fixedly welded to the outer end of the connecting rod (29), an elastic sheet (32) is fixedly welded to the outer wall of the connecting ring (31), and a guide rod (30) is fixedly welded to the inner side wall of the connecting rod (29), the end of the guide rod (30) is hemispherical, and the end of the guide rod (30) is arranged to be in contact with the side wall of the cooling air duct (39), and a snap-fit ​​groove (35) is provided at the end of the cooling air duct (39), and the snap-fit ​​groove (35) is an annular groove, and when the elastic sheet (32) is in a reset state, the end of the elastic sheet (32) is snap-fitted into the snap-fit ​​groove (35).

9. The cooling device for producing and processing polypropylene filaments according to claim 8, characterized in that: A cross bar (33) is integrally formed in the connecting ring (31), a pull rod (34) is welded to the cross bar (33), and when the elastic sheet (32) is engaged in the engagement groove (35), the end of the pull rod (34) protrudes outside the port of the cooling air duct (39), and an anti-slip protrusion (36) is integrally formed on the side wall of the pull rod (34).

10. A polypropylene filament production process, characterized in that: The polypropylene filament production process is implemented by any one of the polypropylene filament production and processing cooling devices described in claims 1-9. The production process is to form the fiber filament (40) by a polypropylene filament forming device (2), and then supply air by an air supply device, so that the air flow passes through the main air duct (18), the air chamber (20), the primary air duct (23), the secondary air duct (24), the tertiary air duct (25) and the quaternary air duct (26) in sequence, and finally blown out through the cooling air duct (39), so as to cool and shape the fiber filament (40), and the lower part of the cooling wheel (3) will be immersed in the cooling water tank (5) for cooling and cooling, and the cooling air duct (39) will be soaked, so that the humidity of the air flow blown out of the cooling air duct (39) is increased, so that the specific heat capacity of the air flow is increased, so that the air flow can take away more heat, thereby improving the cooling and shaping effect of the fiber filament (40).

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