A high-efficiency cooling and shaping device for polyurethane film production

Abstract

This invention belongs to the technical field of polyurethane film processing equipment and discloses a high-efficiency cooling and shaping device for polyurethane film production. It includes a cooling roller and a drive shaft, the drive shaft driving the cooling roller to rotate circumferentially. The device further includes: a corrugated groove located outside the drive shaft; a slide rod slidably disposed within the corrugated groove; as the drive shaft rotates circumferentially, the slide rod reciprocates along the crests and troughs of the corrugated groove; and a cleaning plate connected to the slide rod, with its cleaning side abutting against the area of ​​the cooling roller where no polyurethane film is attached. This invention uses the corrugated groove to cause the slide rod to reciprocate, thereby driving the cleaning plate to reciprocate and clean residual waste on the surface of the cooling roller. Furthermore, the air holes and airflow channels on the cleaning plate absorb residual waste through airflow, effectively removing and ensuring the cleanliness of the cooling roller surface, thus improving the adhesion quality of the polyurethane film. The airflow also accelerates heat dissipation on one side of the cooling roller, improving the heat dissipation efficiency of the cooling roller surface.

Description

Technical Field

[0001] This invention belongs to the technical field of polyurethane film processing equipment, specifically a high-efficiency cooling and shaping device for polyurethane film production. Background Technology

[0002] Polyurethane membranes, as a high-performance polymer material, are widely used in many fields such as clothing, medical, and construction due to their excellent wear resistance, hydrolysis resistance, high elasticity, and good biocompatibility. In the production process of polyurethane membranes, cooling and shaping is a crucial step that directly affects the quality and performance of the polyurethane membrane.

[0003] Traditional polyurethane film production cooling and shaping devices often employ simple quench roller structures. In actual production, after long-term use, residual waste generated during polyurethane film production tends to adhere to the surface of the quench roller. If this waste is not cleaned in time, it will not only affect the cooling efficiency of the quench roller, leading to uneven cooling of the polyurethane film and thus affecting product quality, but may also fall off and mix into the product due to excessive accumulation, causing product defects and affecting the molding quality and performance of the polyurethane film.

[0004] Therefore, a high-efficiency cooling and shaping device for polyurethane film production is proposed to solve the above problems. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention provides a high-efficiency cooling and shaping device for polyurethane film production.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency cooling and shaping device for polyurethane film production, comprising a chilling roller and a drive shaft, wherein the drive shaft drives the chilling roller to rotate circumferentially, and further comprising:

[0007] Wave grooves are located on the outside of the drive shaft;

[0008] The slide bar is slidably positioned within the wave groove;

[0009] As the drive shaft rotates circumferentially, the slide bar is driven to reciprocate along the crests and troughs of the wave groove;

[0010] The cleaning plate is connected to the slide bar and the cleaning side is attached to the part of the cooling roller where the polyurethane film is not attached.

[0011] The cleaning plate is hollow inside and has air pores on its surface.

[0012] The airflow channel is connected to the cleaning plate;

[0013] As the slide bar moves back and forth, the cleaning plate moves back and forth to clean the residual waste on the surface of the cooling roller, and the residual waste is drawn in by the air holes through the air guide channel.

[0014] In the above technical solution, preferably, the cleaning plate includes:

[0015] The mounting sleeve is connected to the slide bar and has a hollow interior.

[0016] The surface of the mounting sleeve is provided with a cleaning brush and air holes;

[0017] The filter box is hollow inside and is connected to the mounting sleeve and the airflow channel respectively.

[0018] The filter box is equipped with a filter plate;

[0019] The air is drawn from the surface of the cooling roller through the air holes along the air guide channel, and residual waste is collected and filtered along the gas flow direction to the filter plate.

[0020] The above technical solutions, preferably, also include:

[0021] The jet pipe has its jetting end facing downwards from where the cooling roller receives the polyurethane fiber filaments.

[0022] The air duct is connected at both ends to the jet pipe and the air duct passage, respectively.

[0023] The airflow channel is equipped with a cooling plate for cooling the circulating airflow;

[0024] The cooling airflow is guided by the air duct and flows through the air pipe to the jet pipe and is ejected onto the surface of the cooling roller.

[0025] In the above technical solution, preferably, the airflow channel includes:

[0026] An axial flow fan, one end of which is connected to the cleaning plate;

[0027] The cooling cylinder is connected to the other end of the axial flow fan and also to the air guide pipe;

[0028] The cooling element is located inside the cooling cylinder.

[0029] In the above technical solution, preferably, the cooling cylinder includes:

[0030] The first cavity and the second cavity, wherein the cooling end and the heating end of the cooling chip are located in the first cavity and the second cavity, respectively;

[0031] The first cavity is connected to the air guide pipe, and the second cavity is connected to the exhaust pipe.

[0032] The exhaust end of the exhaust pipe faces the point where the polyurethane film detaches from the chilling roller and exits.

[0033] The airflow is diverted into the first and second chambers, where it is cooled and heated respectively, before being introduced into the air duct and exhaust pipe.

[0034] In the above technical solution, preferably, the first cavity includes an upper cavity and a lower cavity, and the second cavity is located in the middle;

[0035] The air guide tube is connected to the upper cavity and the lower cavity, and the exhaust pipe is connected to the second cavity;

[0036] A partition is provided between the upper cavity, the lower cavity and the second cavity, and the cooling chip is disposed through the partition;

[0037] The cooling end and heating end of the cooling chip face the upper cavity, the lower cavity, and the second cavity, respectively.

[0038] In the above technical solution, preferably, the upper cavity, the lower cavity and the second cavity are respectively provided with a vertical guide plate and a triangular guide plate, the vertical guide plate and the partition have a guide area, and the inclined surface of the triangular guide plate is respectively facing the heating end of the cooling plates on both sides.

[0039] The above technical solutions, preferably, also include:

[0040] Fixed box, hollow interior;

[0041] An arc-shaped sleeve is fixed on the drive shaft;

[0042] The push wheel abuts against the arc-shaped sleeve, and its other end passes through the fixed box and is connected to the inner wall of the fixed box by an elastic element;

[0043] The motion conversion component is located inside the fixed box and is connected to the push wheel and the jet pipe;

[0044] The connecting ends of the jet pipe and the air guide pipe are rotatably connected and located inside the fixed box;

[0045] As the drive shaft drives the arc-shaped sleeve to rotate, it pushes the push wheel to move along the direction of approaching / moving away from the fixed box, causing the motion conversion component to drive the jet pipe to reciprocate around its own axis.

[0046] In the above technical solution, preferably, the motion conversion component includes:

[0047] Gear plate, mounted on the drive wheel;

[0048] The gear is located outside the jet pipe and meshes with the toothed plate.

[0049] The above technical solutions, preferably, also include:

[0050] The water bath is equipped with a cooling roller that is rotatably mounted inside the water bath. The fixed box and the airflow channel are both mounted on the water bath. The slide rod is slidably mounted on the water bath.

[0051] The drive motor's output end is connected to the drive shaft via a drive belt.

[0052] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0053] This invention uses a wave groove to make the slide bar move back and forth, thereby driving the cleaning plate to clean the residual waste on the surface of the chilling roller. In addition, the air holes and air guide channels on the cleaning plate use airflow to collect the residual waste, which can effectively remove and ensure the cleanliness of the surface of the chilling roller, thereby improving the adhesion quality of the polyurethane film. Furthermore, the airflow will also accelerate the heat dissipation on one side of the chilling roller, improving the heat dissipation efficiency of the chilling roller surface.

[0054] Furthermore, through the flow channel design of the first and second cavities inside the cooling cylinder of the airflow guide channel, combined with the heat generated by the cooling plate, the airflow is cooled and heated respectively. Then, it is introduced into the air guide pipe and the exhaust pipe to flow to the area below the polyurethane fiber filament receiving point of the chilling roller for cooling and the polyurethane film is pre-dried at the point where it is detached from the chilling roller and conveyed out. The cooling end promotes the rapid solidification and molding of the polyurethane fiber filament to improve its strength and toughness. The pre-drying removes residual moisture, stabilizes the film material performance, and improves the molding quality of the polyurethane film.

[0055] Furthermore, through the arrangement of the fixed box, arc sleeve, push wheel, elastic element and motion conversion element, the transmission shaft drives the arc sleeve to rotate while simultaneously driving the jet pipe to reciprocate around its own axis, thereby realizing multi-angle spraying of cooling air from the jet pipe and improving the uniformity of cooling effect on the surface of the cooling roller. Attached Figure Description

[0056] Figure 1 This is a schematic diagram of the structure of the present invention;

[0057] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0058] Figure 3 This is a three-dimensional structural diagram of the chilling roller, corrugated groove, and cleaning plate of the present invention;

[0059] Figure 4 This is a three-dimensional structural diagram of the airflow channel, jet pipe, and airflow tube of the present invention;

[0060] Figure 5 This is a three-dimensional structural diagram of the drive shaft, arc sleeve, and push wheel of the present invention;

[0061] Figure 6 This is a three-dimensional cross-sectional view of the mounting sleeve, cleaning brush, filter box, and filter plate of the present invention.

[0062] Figure 7 This is a cross-sectional view of the cooling cylinder of the present invention;

[0063] Figure 8 This is a cross-sectional view of the fixing box of the present invention.

[0064] In the diagram: 1. Cooling roller; 2. Drive shaft; 3. Corrugated groove; 4. Slide bar; 5. Cleaning plate; 51. Mounting sleeve; 52. Cleaning brush; 53. Filter box; 54. Filter plate; 6. Air hole; 7. Air guide channel; 71. Axial flow fan; 72. Cooling cylinder; 721. First chamber; 722. Second chamber; 8. Jet pipe; 9. Air guide pipe; 10. Cooling element; 11. Exhaust pipe; 12. Upper chamber; 13. Lower chamber; 14. Partition; 15. Vertical guide plate; 16. Triangular guide plate; 17. Guide zone; 18. Fixed box; 19. Arc sleeve; 20. Drive wheel; 21. Elastic element; 22. Motion conversion element; 221. Tooth plate; 222. Gear; 23. Water bath; 24. Drive motor; 25. Drive belt. Detailed Implementation

[0065] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0066] like Figure 1 , Figure 5 , Figure 6 As shown, the present invention provides a high-efficiency cooling and shaping device for polyurethane film production, including a cooling roller 1 and a drive shaft 2, wherein the drive shaft 2 drives the cooling roller 1 to rotate circumferentially, and further includes:

[0067] Wave groove 3 is located on the outside of drive shaft 2;

[0068] The slide bar 4 is slidably disposed within the wave groove 3;

[0069] As the drive shaft 2 rotates circumferentially, the drive slide bar 4 moves back and forth along the crests and troughs of the wave groove 3;

[0070] This mechanical structure converts the rotational motion of the transmission shaft 2 into the linear reciprocating motion of the slide bar 4, thereby driving the cleaning plate 5 connected to it to move back and forth on the surface of the cooling roller 1, so as to remove the residual waste on the surface of the cooling roller 1.

[0071] The cleaning plate 5 is connected to the slide bar 4 and the cleaning side is in contact with the part of the cooling roller 1 where the polyurethane film is not attached;

[0072] The cleaning plate 5 is hollow inside and has air holes 6 on its surface;

[0073] The airflow channel 7 is connected to the cleaning plate 5;

[0074] As the slide bar 4 moves back and forth, the transmission cleaning plate 5 moves back and forth to clean the residual waste on the surface of the cooling roller 1, and the residual waste is sucked up by the air hole 6 through the air guide channel 7.

[0075] While the cleaning plate 5 is reciprocating, the airflow channel 7 generates suction through the air holes 6 to achieve simultaneous cleaning and collection, preventing waste from drifting on the surface of the cooling roller 1 and mixing into the polyurethane fiber filaments or film material, thus ensuring the stable forming quality of the polyurethane film.

[0076] Furthermore, during the air extraction process, the flowing airflow exchanges heat with the surface of the cooling roller 1, carrying away some of the heat and accelerating the heat dissipation process of the cooling roller 1. This maintains the stable temperature of the cooling roller 1 and prevents the temperature from affecting the molding quality of the polyurethane film.

[0077] like Figure 3 , Figure 6 As shown, the cleaning plate 5 includes:

[0078] Mounting sleeve 51 is connected to slide bar 4 and is hollow inside;

[0079] The surface of the mounting sleeve 51 is provided with a cleaning brush 52 and air holes 6;

[0080] Specifically, the air holes 6 are distributed on the outer side of the cleaning brush 52 to prevent missed suction.

[0081] The filter box 53 is hollow inside and is connected to the mounting sleeve 51 and the airflow channel 7 respectively.

[0082] The filter box 53 is equipped with a filter plate 54;

[0083] Furthermore, the filter box 53 is equipped with an opening and closing door, which is located above the filter plate 54. When it is necessary to clean the waste material accumulated on the filter plate 54, simply open the opening and closing door to clean or replace the filter plate 54.

[0084] Air is drawn from the surface of the cooling roller 1 through the air hole 6 via the air guide channel 7, and residual waste is collected and filtered along the gas flow direction to the filter plate 54.

[0085] After the airflow channel 7 draws in air and waste material from the surface of the cooling roller 1 through the air hole 6, the airflow containing waste material enters the filter box 53, where the filter plate 54 effectively intercepts the waste particles for gas-solid separation. The purified air then continues to enter the subsequent operation through the airflow channel 7.

[0086] like Figure 2 , Figure 4 As shown, it also includes:

[0087] The jet pipe 8 has its jetting end facing downwards from the point where the cooling roller 1 receives the polyurethane fiber filaments.

[0088] The air duct 9 is connected at both ends to the jet pipe 8 and the air duct 7, respectively.

[0089] The airflow channel 7 is equipped with a cooling plate 10 for cooling the circulating airflow;

[0090] The cooling airflow is guided by the airflow channel 7, flows through the airflow pipe 9, and is ejected from the jet pipe 8 onto the surface of the cooling roller.

[0091] The jet pipe 8 sprays the airflow cooled by the cooling plate 10 towards the area below the polyurethane fiber filament receiving point on the cooling roller 1. The main purpose is to use the low-temperature airflow to reduce the temperature around the fiber filament, which promotes the rapid solidification and molding of the polyurethane fiber filament. This makes the internal structure of the fiber filament more compact and uniform, avoids deformation, and thus improves the strength and toughness of the fiber filament. At the same time, the cooling airflow also assists in the heat dissipation of the cooling roller 1, reducing the heat dissipation pressure of the cooling roller 1.

[0092] like Figure 2 , Figure 4 As shown, the airflow channel 7 includes:

[0093] An axial flow fan 71 is connected at one end to a cleaning plate 5;

[0094] The cooling cylinder 72 is connected to the other end of the axial flow fan 71 and to the air guide pipe 9;

[0095] The cooling element 10 is located inside the cooling cylinder 72.

[0096] The axial flow fan 71 can generate a stable airflow suction force, driving air through the air hole 6 to suck in the residual waste material after cleaning along with the airflow. The introduced air is temperature controlled by the cooling plate 10 and then passed into the air guide pipe 9 and the jet pipe 8, realizing the effective conversion of air from cleaning function to cooling function. This ensures the suction effect of the cleaning plate 5 on the surface of the cooling roller 1 and provides the required temperature-controlled airflow for the cooling roller 1, making it more energy-efficient and effective.

[0097] like Figure 7 As shown, the cooling cylinder 72 includes:

[0098] The first cavity 721 and the second cavity 722, the cooling end and the heating end of the cooling chip 10 are respectively located in the first cavity 721 and the second cavity 722;

[0099] The first cavity 721 is connected to the air guide pipe 9, and the second cavity 722 is connected to the exhaust pipe 11.

[0100] The exhaust end of the exhaust pipe 11 faces the polyurethane film as it detaches from the chill roller 1 and exits.

[0101] The airflow is diverted into the first cavity 721 and the second cavity 722, where it is cooled and heated respectively, before being introduced into the air duct 9 and the exhaust pipe 11.

[0102] When the cooling element 10 is working, it generates both cold and heat. Therefore, the cooling element 10 generates both cold and heat through the compartmentalized cooling cylinder 72. The cold air is used to cool the fiber filaments, and the hot air is used to dry the polyurethane film, which is more energy-efficient and efficient.

[0103] The hot airflow directed towards the point where the polyurethane membrane detaches from the cooling roller 1 can appropriately remove residual moisture from the surface and interior of the membrane, preventing the polyurethane membrane from being poorly bonded due to moisture residue, thus optimizing the physical properties of the membrane material and improving the forming effect of the polyurethane membrane.

[0104] The first cavity 721 includes an upper cavity 12 and a lower cavity 13, and the second cavity 722 is located in the middle.

[0105] The air duct 9 is connected to the upper cavity 12 and the lower cavity 13, and the exhaust pipe 11 is connected to the second cavity 722;

[0106] A partition 14 is provided between the upper cavity 12, the lower cavity 13 and the second cavity 722, and the cooling chip 10 is disposed through the partition 14.

[0107] The cooling end and heating end of the cooling element 10 face the upper cavity 12, the lower cavity 13, and the second cavity 722, respectively.

[0108] The partition 14 further rationally allocates the space for cold and hot air circulation, reduces mutual interference and heat transfer between cold and hot air, and allows the air to fully exchange heat with the cooling / heating end for more effective heating. This ensures that cold and hot air flow stably in their respective cavities, avoiding problems such as uneven cooling / drying.

[0109] The upper cavity 12, the lower cavity 13 and the second cavity 722 are respectively provided with a vertical guide plate 15 and a triangular guide plate 16. There is a guide area 17 between the vertical guide plate 15 and the partition 14. The inclined surface of the triangular guide plate 16 faces the heating end of the cooling plates 10 on both sides.

[0110] The vertical guide plate 15 and the triangular guide plate 16 are used to change the flow direction of the airflow in the cavity, so that the airflow entering the upper cavity 12, the lower cavity 13 and the second cavity 722 can flow along a specific path, which promotes the airflow to fully contact the cooling end / heating end of the cooling chip 10, and also extends the airflow path to fully exchange heat with the cavity, ensuring the stability of the cooling / heating effect, avoiding local overheating or overcooling, and providing a stable cold / hot airflow for the drying of polyurethane film and the cooling of fiber filaments.

[0111] like Figure 4 , Figure 8 As shown, it also includes:

[0112] Fixed box 18, with a hollow interior;

[0113] Arc-shaped sleeve 19 is fixed on drive shaft 2;

[0114] Among them, the arc sleeve 19 is a plum blossom shape that undulates outward along the two circumferences of the drive shaft;

[0115] The push wheel 20 abuts against the arc-shaped sleeve 19, and its other end passes through the fixed box 18 and is connected to the inner wall of the fixed box 18 by an elastic member 21;

[0116] Among them, the push wheel 20 has a sliding plate at one end that passes through the fixed box 18. The sliding plate is adapted to the shape of the inner cavity of the fixed box 18, and an elastic element 21 is provided between the sliding plate and the inner wall of the fixed box 18.

[0117] The elastic element 21 can be either a spring or a sheet, which can be selected by the operator according to the actual situation.

[0118] With the shape and structure of the arc-shaped sleeve 19, the push wheel 20 can be driven to move back and forth in sequence during rotation;

[0119] The motion conversion component 22 is located inside the fixed box 18 and is connected to the push wheel 20 and the jet pipe 8;

[0120] The connecting ends of the jet pipe 8 and the air guide pipe 9 are rotatably connected and located inside the fixed box 18;

[0121] Furthermore, the ends of the jet pipe 8 and the air guide pipe 9 are also rotatably connected to the fixed box 18;

[0122] As the drive shaft 2 drives the arc sleeve 19 to rotate, it pushes the push wheel 20 to move in the direction of approaching / moving away from the fixed box 18, which in turn drives the motion conversion component 22 to drive the jet pipe 8 to reciprocate around its own axis.

[0123] The above design mainly enables the cooling airflow ejected from the jet pipe 8 to cover a larger surface area of ​​the cooling roller 1, avoiding the airflow dead zone that may occur when jetting in a single direction. The airflow forms a convection pattern on the surface of the cooling roller 1, avoiding uneven cooling in local areas. During the process of the cooling roller 1 receiving polyurethane fiber filaments, multi-angle jetting can ensure that the fiber filaments are uniformly cooled at different positions, improving the strength and toughness of the fiber filaments and enhancing the consistency of product quality.

[0124] Furthermore, the above structure does not require an additional power device to drive the rotation of the jet pipe 8; the drive is achieved through the rotational power of the transmission shaft 2.

[0125] like Figure 1 , Figure 2 As shown, the motion conversion component 22 includes:

[0126] The toothed plate 221 is mounted on the push wheel 20 and is slidably mounted inside the fixed box 18;

[0127] Gear 222 is located outside the jet pipe 8 and meshes with toothed plate 221.

[0128] By meshing the toothed plate 221 with the gear 222, the linear motion of the push wheel 20 is converted into the circumferential rotation of the jet pipe 8 around its own axis, thus meeting the requirement for multi-angle jet cooling of the surface of the chilling roller.

[0129] As shown in the figure, it also includes:

[0130] The water bath 23 has a cooling roller 1 rotatably mounted inside it, a fixed box 18 and an air guide channel 7 are mounted on the water bath 23, and a slide rod 4 is slidably mounted on the water bath 23.

[0131] The output end of the drive motor 24 is connected to the drive shaft 2 via a drive belt 25.

[0132] Working principle and usage process of this invention:

[0133] The drive motor 24 drives the drive shaft 2 to rotate via the drive belt 25, and the cooling roller 1 rotates circumferentially accordingly. As the drive shaft 2 rotates, the wave groove 3 drives the slide bar 4 to move back and forth, which in turn drives the cleaning plate 5 to move back and forth. The cleaning brush 52 continuously cleans the residual waste on the surface of the cooling roller 1. The axial flow fan 71 draws air and waste through the air hole 6 and flows to the filter box 53 for filtration. The filtered air flows into the cooling cylinder 72, and the airflow enters the upper cavity 12, the lower cavity 13 and the second cavity 722 respectively.

[0134] The cooling end of the cooling chip 10 is located in the upper cavity 12 and the lower cavity 13, so that the air flowing through the upper cavity 12 and the lower cavity 13 flows along the guide area 17 to contact the cooling end and cool down, forming a cooling airflow. It is then transported to the jet pipe 8 through the air guide pipe 9 and sprayed towards the area below the polyurethane fiber filament receiving the cooling roller 1, which promotes the rapid solidification and molding of the polyurethane fiber filament.

[0135] The heating end of the cooling chip 10 is located in the second cavity 722. The air flowing through this cavity is guided by the triangular guide plate 16 and heated in contact with the heating end. It is then sprayed through the exhaust pipe 11 onto the polyurethane film and detached from the cooling roller 1 at the conveying point to pre-dry the polyurethane film.

[0136] During this process, the drive shaft 2 drives the arc sleeve 19 to rotate, which in turn drives the push wheel 20 to move. The elastic element 21 is compressed, and through the transmission of the toothed plate 221 and the gear 222, the jet pipe 8 is driven to reciprocate around its own axis to spray cooling air at multiple angles, thus completing the entire operation.

[0137] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0138] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency cooling and shaping device for polyurethane film production, comprising a chilling roller and a drive shaft, wherein the drive shaft drives the chilling roller to rotate circumferentially, characterized in that, Also includes: Wave grooves are located on the outside of the drive shaft; The slide bar is slidably positioned within the wave groove; As the drive shaft rotates circumferentially, the slide bar is driven to reciprocate along the crests and troughs of the wave groove; The cleaning plate is connected to the slide bar and the cleaning side is attached to the part of the cooling roller where the polyurethane film is not attached. The cleaning plate is hollow inside and has air pores on its surface. The airflow channel is connected to the cleaning plate; As the slide bar reciprocates, the cleaning plate reciprocates to clean the residual waste on the surface of the cooling roller, and the residual waste is collected by the air holes through the air guide channel; Also includes: The jet pipe has its jetting end facing downwards from where the cooling roller receives the polyurethane fiber filaments. The air duct is connected at both ends to the jet pipe and the air duct passage, respectively. The airflow channel is equipped with a cooling plate for cooling the circulating airflow; The cooling airflow is guided by the airflow channel and flows through the air pipe to the jet pipe and is ejected onto the surface of the cooling roller; The airflow channel includes: An axial flow fan, one end of which is connected to the cleaning plate; The cooling cylinder is connected to the other end of the axial flow fan and also to the air guide pipe; The cooling element is located inside the cooling cylinder; The cooling cylinder includes: The first cavity and the second cavity, wherein the cooling end and the heating end of the cooling chip are located in the first cavity and the second cavity, respectively; The first cavity is connected to the air guide pipe, and the second cavity is connected to the exhaust pipe. The exhaust end of the exhaust pipe faces the point where the polyurethane film detaches from the chilling roller and exits. The airflow is diverted into the first chamber and the second chamber, where it is cooled and heated respectively, before being introduced into the air duct and the exhaust pipe. Also includes: Fixed box, hollow interior; An arc-shaped sleeve is fixed on the drive shaft; The push wheel abuts against the arc-shaped sleeve, and its other end passes through the fixed box and is connected to the inner wall of the fixed box by an elastic element; The motion conversion component is located inside the fixed box and is connected to the push wheel and the jet pipe; The connecting ends of the jet pipe and the air guide pipe are rotatably connected and located inside the fixed box; As the drive shaft drives the arc sleeve to rotate, it pushes the push wheel to move along the direction of approaching / moving away from the fixed box, causing the motion conversion component to drive the jet pipe to reciprocate around its own axis. The first cavity includes an upper cavity and a lower cavity, and the second cavity is located in the middle; The air guide tube is connected to the upper cavity and the lower cavity, and the exhaust pipe is connected to the second cavity; A partition is provided between the upper cavity, the lower cavity and the second cavity, and the cooling chip is disposed through the partition; The cooling end and heating end of the cooling chip face the upper cavity, the lower cavity, and the second cavity, respectively. The upper cavity, lower cavity, and second cavity are respectively provided with vertical guide plates and triangular guide plates. There is a flow guiding area between the vertical guide plate and the partition. The inclined surfaces of the triangular guide plates are respectively facing the heating ends of the cooling plates on both sides.

2. The high-efficiency cooling and shaping device for polyurethane film production according to claim 1, characterized in that: The cleaning plate includes: The mounting sleeve is connected to the slide bar and has a hollow interior. The surface of the mounting sleeve is provided with a cleaning brush and air holes; The filter box is hollow inside and is connected to the mounting sleeve and the airflow channel respectively. The filter box is equipped with a filter plate; The air is drawn from the surface of the cooling roller through the air holes along the air guide channel, and residual waste is collected and filtered along the gas flow direction to the filter plate.

3. The high-efficiency cooling and shaping device for polyurethane film production according to claim 1, characterized in that: The motion conversion component includes: Gear plate, mounted on the drive wheel; The gear is located outside the jet pipe and meshes with the toothed plate.

4. The high-efficiency cooling and shaping device for polyurethane film production according to claim 1, characterized in that: Also includes: The water bath is equipped with a cooling roller that is rotatably mounted inside the water bath. The fixed box and the airflow channel are both mounted on the water bath. The slide rod is slidably mounted on the water bath. The drive motor's output end is connected to the drive shaft via a drive belt.

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