A polyurethane waterproof coating production and processing equipment

Abstract

This invention relates to the field of polyurethane waterproof coating technology, and discloses a production and processing equipment for polyurethane waterproof coating, including a cylinder and a base. A feed pipe is fixedly and continuously installed at the top of the cylinder, and a discharge pipe is fixedly and continuously installed at the lower end of the side wall of the cylinder, with a valve installed on the discharge pipe. Support rods are horizontally and fixedly installed on both sides of the cylinder. Support plates are fixedly installed at both ends of the top surface of the base, and the support rods on the left and right sides are respectively borne through the support plates on the left and right sides. A stirring rod is longitudinally and continuously installed at the center of the bottom of the cylinder. This production and processing equipment for polyurethane waterproof coating can enhance the mixing effect through the coordinated operation of multiple mechanisms, solving the problem of dead zones in the flow, while ensuring full contact and uniform fusion of various raw materials, improving the quality stability of the polyurethane waterproof coating, increasing the production and processing efficiency of the polyurethane waterproof coating, and reducing production costs.

Description

Technical Field

[0001] This invention relates to the field of polyurethane waterproof coating technology, specifically to a production and processing equipment for polyurethane waterproof coatings. Background Technology

[0002] Polyurethane waterproof coating is a single-component, environmentally friendly waterproof coating applied in a liquid state. It uses imported polyurethane prepolymer as its basic component, contains no tar or asphalt additives, and features high strength, high elongation, and good water resistance. The production and processing of polyurethane waterproof coating requires mixing multiple raw materials; however, existing production and processing equipment for polyurethane waterproof coating still has certain shortcomings, such as:

[0003] The application CN202221506253.2, entitled "A Single-Unit Polyurethane Waterproof Coating Production Equipment", has an overly simplistic mixing method during use, resulting in poor mixing effects, dead zones in the mixing process, and an inability to quickly and thoroughly mix the internal polyurethane waterproof coating. This makes it difficult to fully and evenly blend the various raw materials, affecting the quality of the polyurethane waterproof coating product and hindering the improvement of the production and processing efficiency of the polyurethane waterproof coating.

[0004] In view of this, and in response to the above problems, an in-depth study was conducted, and a production and processing equipment for polyurethane waterproof coatings was proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a production and processing equipment for polyurethane waterproof coatings, in order to solve the problems mentioned in the background art, such as poor mixing effect of existing polyurethane waterproof coating production and processing equipment, which affects the production quality of polyurethane waterproof coatings and is not conducive to improving the production and processing efficiency of polyurethane waterproof coatings.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a production and processing equipment for polyurethane waterproof coatings, comprising a cylinder and a base.

[0007] A feed pipe is fixedly and continuously installed at the top of the cylinder, and a discharge pipe is fixedly and continuously installed at the lower end of the side wall of the cylinder. A valve is installed on the discharge pipe. Support rods are fixedly installed laterally on both the left and right sides of the cylinder. Support plates are fixedly installed at both ends of the top surface of the base. The support rods on the left and right sides are respectively pierced through the support plates on the left and right sides.

[0008] A stirring rod is provided through the longitudinal bearing at the bottom center of the cylinder, and stirring blades are evenly installed on the surface of the stirring rod, with the stirring blades located inside the cylinder.

[0009] A rotating mechanism is provided on the support plate on the right side, and a power mechanism is connected to the right end of the rotating mechanism. The rotating mechanism is connected to the support rod on the right side through a swing mechanism.

[0010] The bottom end of the stirring rod is connected to a driving mechanism, and the driving mechanism is located on the top surface of the base. The lower ends of the front and rear outer walls of the cylinder are connected to a reciprocating moving mechanism, and the outer ends of the reciprocating moving mechanism are connected to a gas supply mechanism, which is connected to the cylinder.

[0011] The above technical solution facilitates the rapid and uniform mixing of raw materials for polyurethane waterproof coating production, thereby improving product quality and production efficiency.

[0012] As a preferred embodiment of the present invention, the rotating mechanism includes a rotating shaft, the horizontal shaft bearing of which passes through the right side of the support plate and is located below the support rod. A turntable is fixedly installed at the left end of the rotating shaft, and a cylindrical pin is fixedly installed on the left side of the turntable.

[0013] The above technical solution facilitates the synchronous rotation of the turntable and cylindrical pin by rotating the shaft.

[0014] As a preferred embodiment of the present invention, the center line of the horizontal axis of the turntable is collinear with the center line of the horizontal axis of the rotating shaft, and the cylindrical pin is located at an eccentric position on the left side of the turntable.

[0015] The above technical solution ensures that the turntable drives the cylindrical pin to rotate in a circular motion.

[0016] As a preferred embodiment of the present invention, the power mechanism includes a motor, which is fixedly installed on the outer side of the support plate on the right side, and the shaft end of the motor is coaxially and fixedly connected to the right end of the rotating shaft.

[0017] The above technical solution facilitates the rotation of the shaft by driving it with a motor.

[0018] As a preferred embodiment of the present invention, the swing mechanism includes a swing plate, which is fixedly installed on the surface of the support rod on the right side and is located on the left side of the turntable. A strip groove is opened horizontally through the swing plate, and a cylindrical pin is provided through the strip groove, and the diameter of the cylindrical pin matches the width of the strip groove.

[0019] By adopting the above technical solution, the cylindrical pin can rotate in a circular motion and, through its cooperation with the strip groove, cause the support rod to drive the cylinder to reciprocate and swing, thereby causing the material inside the cylinder to flow and collide.

[0020] As a preferred embodiment of the present invention, the driving mechanism includes a housing, which is fixedly installed on the bottom surface of the cylinder. The stirring rod bearing is disposed through the top of the housing. A rotating rod is disposed through the left side wall of the housing by a transverse bearing. A bevel gear set is fixedly installed on the right end of the rotating rod and is fixedly connected to the bottom end of the stirring rod. A transmission gear is coaxially fixedly installed on the left end of the rotating rod and meshes with an arc-shaped rack. A support is fixedly installed on the bottom surface of the arc-shaped rack and is fixedly installed on the top surface of the base.

[0021] By adopting the above technical solution, the arc-shaped rack facilitates the rotation of the transmission gear that moves with the cylinder during its reciprocating oscillation. This, in turn, causes the rotating rod to drive the stirring rod and stirring blades to rotate through the bevel gear set, thereby achieving the mixing of the polyurethane waterproof coating.

[0022] As a preferred embodiment of the present invention, the reciprocating moving mechanism includes a moving plate. Two moving plates are symmetrically arranged and located on the front and rear sides of the cylinder respectively. The bottom surface of the moving plate is slidably connected to a groove formed on the top surface of the base. A first fixed seat is fixedly installed on the inner side of the moving plate. The first fixed seat is rotatably connected to the outer end of the connecting rod. The inner end of the connecting rod is rotatably connected to a second fixed seat. The second fixed seat is fixedly installed on the lower end of the outer wall of the cylinder.

[0023] By adopting the above technical solution, it is convenient to drive the second fixed seat to swing back and forth synchronously during the reciprocating swing of the cylinder, so that the first fixed seat and the moving plate can be driven to move back and forth through the connecting rod.

[0024] As a preferred embodiment of the present invention, the air delivery mechanism includes an air cylinder. Two air cylinders are symmetrically arranged and fixedly installed at the front and rear ends of the top surface of the base, respectively. A piston is movably installed inside the air cylinder, and the diameter of the piston matches the inner diameter of the air cylinder. The inner side of the piston is fixedly connected to the outer end of a straight rod, and the inner end of the straight rod is fixedly connected to the outer side of the moving plate. An air inlet pipe is fixedly provided through the lower end of the side wall of the air cylinder, and a one-way air inlet valve is provided on the air inlet pipe. One end of the air outlet hose is fixedly connected to the upper end of the side wall of the air cylinder, and a one-way air outlet valve is provided on the air outlet hose. The air outlet hose is fixedly provided through the side wall of the cylinder, and a connecting pipe is fixedly installed at the other end of the air outlet hose. The connecting pipe is fixedly installed on the inner top surface of the cylinder, and multiple air nozzles are evenly and equidistantly installed on the inner side of the connecting pipe.

[0025] By adopting the above technical solution, the piston can be driven to move back and forth by the straight rod when the moving plate moves back and forth, so as to draw in air and deliver it into the cylinder, ensuring that the material is impacted by the airflow and further improving the mixing effect.

[0026] As a preferred embodiment of the present invention, an electric heating mesh is fixedly installed on the inner wall of the air cylinder, and the electric heating mesh is located on the outside of the piston.

[0027] The above technical solution facilitates heating of the gas via electric heating, allowing the hot gas to act on the material, thereby accelerating the material mixing and reaction rate.

[0028] Compared with the prior art, the beneficial effects of the present invention are: the production and processing equipment for polyurethane waterproof coating can enhance the mixing effect through the coordinated operation of multiple mechanisms, solve the problem of easy flow dead zones, and at the same time ensure that various raw materials are fully contacted and uniformly blended, thereby improving the quality stability of polyurethane waterproof coating, increasing the production and processing efficiency of polyurethane waterproof coating, and reducing production costs.

[0029] 1. The rotating shaft is driven by a motor, which causes the turntable to drive the cylindrical pin to rotate in a circle. Under the action of the cylindrical pin and the strip groove, the swing plate drives the support shaft and the cylinder to swing back and forth, so that the material inside the cylinder flows and collides, while avoiding dead corners.

[0030] 2. While the cylinder body swings, the stirring plate, stirring blade, rotating rod, bevel gear set, and transmission rack swing synchronously. Under the meshing action of the arc rack and the transmission gear, the transmission gear drives the rotating rod to reciprocate and rotate while swinging, which in turn drives the stirring rod and stirring blade to reciprocate and rotate through the bevel gear set, thereby improving the mixing effect of the material.

[0031] 3. When the cylinder swings, it drives the second fixed seat to swing synchronously. Through the action of the connecting rod, it drives the first fixed seat and the moving plate to move back and forth. The moving plate drives the piston to move back and forth through the straight rod, thereby drawing external gas into the air cylinder. Then, it enters the through pipe through the air outlet hose and is finally sprayed by the air nozzle. The airflow impacts the material, thereby further improving the mixing effect of the material, ensuring that the material is fully contacted and blended, and improving the production quality and processing efficiency of polyurethane waterproof coating.

[0032] 4. The gas entering the cylinder can be heated by an electric heating grid, ensuring that hot gas enters the cylinder, thereby accelerating the material mixing reaction rate and improving processing efficiency. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the cross-sectional structure of the cylindrical body of the present invention;

[0035] Figure 3 For the present invention Figure 2Enlarged structural diagram at point A in the middle;

[0036] Figure 4 This is a schematic diagram of the connection structure between the cylindrical pin and the slot in this invention;

[0037] Figure 5 This is a schematic diagram of the connection structure between the cylinder and the box body of the present invention;

[0038] Figure 6 This is a schematic diagram of the cross-sectional structure of the box body of the present invention;

[0039] Figure 7 This is a schematic diagram of the connection structure between the transmission gear and the arc-shaped rack of the present invention;

[0040] Figure 8 This is a schematic diagram of the connection structure between the connecting rod and the first and second fixed seats of the present invention;

[0041] Figure 9 This is a schematic diagram of the cross-sectional structure of the air cylinder of the present invention.

[0042] In the diagram: 1. Cylinder; 2. Base; 3. Feed pipe; 4. Discharge pipe; 5. Support rod; 6. Support plate; 7. Stirring rod; 8. Stirring blade; 9. Rotating shaft; 10. Turntable; 11. Cylindrical pin; 12. Motor; 13. Swing plate; 14. Strip groove; 15. Box body; 16. Rotating rod; 17. Bevel gear set; 18. Transmission gear; 19. Arc rack; 20. Support; 21. Moving plate; 22. Slide groove; 23. First fixed seat; 24. Connecting rod; 25. Second fixed seat; 26. Air cylinder; 27. Piston; 28. Straight rod; 29. ​​Air inlet pipe; 30. Air outlet hose; 31. Through pipe; 32. Air nozzle; 33. Electric heating grid. Detailed Implementation

[0043] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figure 1 - Figure 9 The technical solution of the present invention is as follows: a production and processing equipment for polyurethane waterproof coating, including a cylinder 1 and a base 2. A feed pipe 3 is fixedly and through the top of the cylinder 1, and a discharge pipe 4 is fixedly and through the lower end of the side wall of the cylinder 1. A valve is provided on the discharge pipe 4. Support rods 5 are horizontally and fixedly installed on both the left and right sides of the cylinder 1. Support plates 6 are fixedly installed on both the left and right ends of the top surface of the base 2. The support rods 5 on the left and right sides are respectively borne through the support plates 6 on the left and right sides.

[0045] A stirring rod 7 is installed through a longitudinal bearing at the bottom center of the cylinder 1, and stirring blades 8 are evenly installed on the surface of the stirring rod 7, and the stirring blades 8 are located inside the cylinder 1.

[0046] A rotating mechanism is provided on the right support plate 6, and a power mechanism is connected to the right end of the rotating mechanism. The rotating mechanism is connected to the right support rod 5 through a swing mechanism.

[0047] The bottom end of the stirring rod 7 is connected to a driving mechanism, which is located on the top surface of the base 2. The lower ends of the front and rear outer walls of the cylinder 1 are connected to a reciprocating moving mechanism, and the outer ends of the reciprocating moving mechanism are connected to a gas supply mechanism, which is connected to the cylinder 1.

[0048] The rotating mechanism includes a rotating shaft 9, with a horizontal shaft bearing passing through the right support plate 6. The rotating shaft 9 is located below the support rod 5. A turntable 10 is fixedly installed at the left end of the rotating shaft 9, and a cylindrical pin 11 is fixedly installed on the left side of the turntable 10. The center line of the horizontal axis of the turntable 10 is collinear with the center line of the horizontal axis of the rotating shaft 9, and the cylindrical pin 11 is located at an eccentric position on the left side of the turntable 10.

[0049] The power mechanism includes a motor 12, which is fixedly installed on the outer side of the right support plate 6, and the shaft end of the motor 12 is coaxially and fixedly connected to the right end of the rotating shaft 9.

[0050] The swing mechanism includes a swing plate 13, which is fixedly installed on the surface of the right support rod 5 and is located on the left side of the turntable 10. A strip groove 14 is opened horizontally through the swing plate 13, and a cylindrical pin 11 is set through the strip groove 14, and the diameter of the cylindrical pin 11 matches the width of the strip groove 14.

[0051] The drive mechanism includes a housing 15, which is fixedly installed on the bottom surface of the cylinder 1. The stirring rod 7 is bearing through the top of the housing 15. A rotating rod 16 is provided through the left side wall of the housing 15 with a transverse bearing. A bevel gear set 17 is fixedly installed on the right end of the rotating rod 16 and is fixedly connected to the bottom end of the stirring rod 7. A transmission gear 18 is coaxially fixedly installed on the left end of the rotating rod 16 and meshes with an arc rack 19. A support 20 is fixedly installed on the bottom surface of the arc rack 19 and is fixedly installed on the top surface of the base 2.

[0052] The reciprocating moving mechanism includes a moving plate 21. Two moving plates 21 are symmetrically arranged and located on the front and rear sides of the cylinder 1 respectively. The bottom surface of the moving plate 21 is slidably connected to the sliding groove 22 opened on the top surface of the base 2. A first fixed seat 23 is fixedly installed on the inner side of the moving plate 21. The first fixed seat 23 is rotatably connected to the outer end of the connecting rod 24. The inner end of the connecting rod 24 is rotatably connected to the second fixed seat 25. The second fixed seat 25 is fixedly installed on the lower end of the outer wall surface of the cylinder 1.

[0053] The gas delivery mechanism includes two gas cylinders 26, which are symmetrically arranged and fixedly installed at the front and rear ends of the top surface of the base 2. A piston 27 is movably installed inside each gas cylinder 26, and the diameter of the piston 27 matches the inner diameter of the gas cylinder 26. An electric heating mesh 33 is fixedly installed on the inner wall of the gas cylinder 26, and the electric heating mesh 33 is located outside the piston 27. The inner side of the piston 27 is fixedly connected to the outer end of a straight rod 28, and the inner end of the straight rod 28 is fixedly connected to the outer side of a moving plate 21. An air inlet pipe 29 is fixedly installed through the lower end of the side wall of the cylinder 26, and a one-way air inlet valve is installed on the air inlet pipe 29. The upper end of the side wall of the cylinder 26 is fixedly connected to one end of the air outlet hose 30, and a one-way air outlet valve is installed on the air outlet hose 30. The air outlet hose 30 is fixedly installed through the side wall of the cylinder 1, and a connecting pipe 31 is fixedly installed at the other end of the air outlet hose 30. The connecting pipe 31 is fixedly installed on the inner top surface of the cylinder 1, and multiple air nozzles 32 are evenly installed on the inner side of the connecting pipe 31 at equal intervals.

[0054] Working principle: During use, various raw materials required for the production of polyurethane waterproof coating are fed into the cylinder 1 through the feed pipe 3. Then, the motor 12 is started to drive the rotating shaft 9 to rotate. When the rotating shaft 9 rotates, it drives the turntable 10 to rotate, which in turn drives the cylindrical pin 11 to rotate in a circle. Through the cooperation between the cylindrical pin 11 and the strip groove 14, the swing plate 13 drives the support rod 5 to swing, which causes the cylinder 1 to swing back and forth around the axis of the support rod 5, thereby causing the material in the cylinder 1 to flow, collide and mix.

[0055] When the cylinder 1 swings, it drives the stirring rod 7, stirring blade 8, box 15, rotating rod 16, bevel gear set 17 and transmission gear 18 to swing synchronously. Under the meshing connection between the transmission gear 18 and the arc rack 19, the transmission gear 18 rotates during the swinging process, causing the rotating rod 16 to rotate synchronously and drive the stirring rod 7 and stirring blade 8 to rotate through the bevel gear set 17, thereby stirring and mixing the material in the cylinder 1.

[0056] When the cylinder 1 swings, it drives the second fixed seat 25 to swing synchronously. Through the action of the connecting rod 24 and the first fixed seat 23, it drives the moving plate 21 to reciprocate in the slide groove 22. When the moving plate 21 moves, it drives the piston 27 to reciprocate through the straight rod 28. When the piston 27 moves inward, it draws external gas into the air cylinder 26 through the air inlet pipe 29. When the piston 27 moves outward, it delivers the gas into the through pipe 31 through the air outlet hose 30. Finally, it sprays the gas into the cylinder 1 through the jet nozzle 32, thereby improving the mixing effect of the material by impacting the material with the airflow.

[0057] During the gas transport process, the electric heating grid 33 can be activated to heat the transported gas, thereby ensuring that hot gas enters the cylinder 1 and accelerates the material mixing reaction efficiency.

[0058] The above operations can ensure that the raw materials for polyurethane waterproof coating production are quickly, fully and evenly mixed, improve the quality of polyurethane waterproof coating products, and increase the production and processing efficiency of polyurethane waterproof coatings.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A production and processing equipment for polyurethane waterproof coating, comprising a cylinder (1) and a base (2), characterized in that: The top of the cylinder (1) is fixedly provided with a feed pipe (3), and the lower end of the side wall of the cylinder (1) is fixedly provided with a discharge pipe (4), and a valve is provided on the discharge pipe (4). Support rods (5) are fixedly installed horizontally on both the left and right sides of the cylinder (1). Support plates (6) are fixedly installed on both the left and right ends of the top surface of the base (2), and the support rods (5) on the left and right sides are respectively pierced through the support plates (6) on the left and right sides. A stirring rod (7) is provided through the longitudinal bearing at the bottom center of the cylinder (1), and stirring blades (8) are evenly installed on the surface of the stirring rod (7), and the stirring blades (8) are located inside the cylinder (1). A rotating mechanism is provided on the support plate (6) on the right side, and a power mechanism is connected to the right end of the rotating mechanism. The rotating mechanism is connected to the support rod (5) on the right side through a swing mechanism. The bottom end of the stirring rod (7) is connected to a driving mechanism, and the driving mechanism is located on the top surface of the base (2). The lower end of the front and rear outer walls of the cylinder (1) is connected to a reciprocating moving mechanism, and the outer end of the reciprocating moving mechanism is connected to a gas supply mechanism, and the gas supply mechanism is connected to the cylinder (1).

2. The production and processing equipment for polyurethane waterproof coating according to claim 1, characterized in that, The rotating mechanism includes a rotating shaft (9), the rotating shaft (9) is mounted on a horizontal axis bearing that passes through the right side of the support plate (6), and the rotating shaft (9) is located below the support rod (5). A turntable (10) is fixedly installed on the left end of the rotating shaft (9), and a cylindrical pin (11) is fixedly installed on the left side of the turntable (10).

3. The production and processing equipment for polyurethane waterproof coating according to claim 2, characterized in that, The horizontal axis centerline of the turntable (10) is collinear with the horizontal axis centerline of the rotating shaft (9), and the cylindrical pin (11) is located at an eccentric position on the left side of the turntable (10).

4. The production and processing equipment for polyurethane waterproof coating according to claim 2, characterized in that, The power mechanism includes a motor (12), which is fixedly installed on the outer side of the support plate (6) on the right side, and the shaft end of the motor (12) is coaxially and fixedly connected to the right end of the rotating shaft (9).

5. The production and processing equipment for polyurethane waterproof coating according to claim 2, characterized in that, The swing mechanism includes a swing plate (13), which is fixedly installed on the surface of the support rod (5) on the right side. The swing plate (13) is located on the left side of the turntable (10). A strip groove (14) is opened horizontally through the swing plate (13), and a cylindrical pin (11) is set through the strip groove (14). The diameter of the cylindrical pin (11) matches the width of the strip groove (14).

6. The production and processing equipment for polyurethane waterproof coating according to claim 1, characterized in that, The driving mechanism includes a housing (15), which is fixedly installed on the bottom surface of the cylinder (1). The stirring rod (7) is pierced through the top of the housing (15) by a bearing. A rotating rod (16) is pierced through the left side wall of the housing (15) by a transverse bearing. A bevel gear set (17) is fixedly installed on the right end of the rotating rod (16). The bevel gear set (17) is fixedly connected to the bottom end of the stirring rod (7). A transmission gear (18) is coaxially fixedly installed on the left end of the rotating rod (16). The transmission gear (18) meshes with an arc rack (19). A support (20) is fixedly installed on the bottom surface of the arc rack (19). The support (20) is fixedly installed on the top surface of the base (2).

7. The production and processing equipment for polyurethane waterproof coating according to claim 1, characterized in that, The reciprocating moving mechanism includes a moving plate (21), two moving plates (21) are symmetrically arranged and located on the front and rear sides of the cylinder (1) respectively. The bottom surface of the moving plate (21) is slidably connected to the sliding groove (22) opened on the top surface of the base (2). A first fixed seat (23) is fixedly installed on the inner side of the moving plate (21). The first fixed seat (23) is rotatably connected to the outer end of the connecting rod (24). The inner end of the connecting rod (24) is rotatably connected to the second fixed seat (25). The second fixed seat (25) is fixedly installed on the lower end of the outer wall surface of the cylinder (1).

8. The production and processing equipment for polyurethane waterproof coating according to claim 7, characterized in that, The gas delivery mechanism includes two air cylinders (26), which are symmetrically arranged and fixedly installed at the front and rear ends of the top surface of the base (2). A piston (27) is movably installed inside each air cylinder (26), and the diameter of the piston (27) matches the inner diameter of the air cylinder (26). The inner side of the piston (27) is fixedly connected to the outer end of a straight rod (28), and the inner end of the straight rod (28) is fixedly connected to the outer side of the moving plate (21). An air inlet pipe (2) is fixedly installed through the lower end of the side wall of the air cylinder (26). 9), and the air inlet pipe (29) is provided with a one-way air inlet valve. The upper end of the side wall of the air cylinder (26) is fixedly connected to one end of the air outlet hose (30). The air outlet hose (30) is provided with a one-way air outlet valve. The air outlet hose (30) is fixedly installed through the side wall of the cylinder (1). The other end of the air outlet hose (30) is fixedly connected to a connecting pipe (31). The connecting pipe (31) is fixedly installed on the inner top surface of the cylinder (1). Multiple air nozzles (32) are evenly installed on the inner side of the connecting pipe (31).

9. The production and processing equipment for polyurethane waterproof coating according to claim 8, characterized in that, An electric heating mesh (33) is fixedly installed on the inner wall of the air cylinder (26), and the electric heating mesh (33) is located on the outside of the piston (27).

Images