Production device of polyacrylamide composite polyurethane sponge

Abstract

The invention relates to the technical field of polyacrylamide composite polyurethane production, and particularly discloses a polyacrylamide composite polyurethane sponge production device, which comprises a reaction box, a foaming part is arranged in the reaction box, the foaming part comprises a plurality of air blowing pipes, a plurality of uniformly distributed air outlet holes are formed in the air blowing pipes, and the air outlet holes are communicated with the reaction box. The air blowing pipe is responsible for receiving outside air, so that the air outlet intermittently discharges air. According to the production device of the polyacrylamide composite polyurethane sponge provided by the invention, each air outlet hole can be temporarily blocked by arranging the arc-shaped blocking piece, and the internal air pressure gradually rises and gradually tends to be stable; by arranging a telescopic pipe, when the telescopic pipe extends, a driving gear is forced to rotate, four driven gears can also rotate at the same time, an arc-shaped blocking piece is forced to rotate, four air blowing pipes lose blocking of the arc-shaped blocking piece due to the fact that high-pressure air exists in the four air blowing pipes, air bubbles begin to be blown out through air outlet holes at the same time, and therefore simultaneous bubbling at multiple positions is achieved; the foaming sizes are the same.

Description

Technical Field

[0001] The invention relates to the technical field of polyacrylamide composite polyurethane production, in particular to a production device for polyacrylamide composite polyurethane sponge. Background Art

[0002] Polyacrylamide composite polyurethane is a composite material that combines the properties of polyacrylamide and polyurethane. This composite material can be used in many fields such as filter membranes, soil improvement, building materials, composite fibers, etc., and is also very popular in the sponge field. At present, the preparation of polyacrylamide composite polyurethane is to mix polyurethane and polyacrylamide, add them to the solvent and stir them thoroughly to make them cross-linked into a composite structure, followed by foaming.

[0003] However, current foaming methods include chemical foaming and physical foaming. In chemical foaming, reagents are added and stirred repeatedly to achieve uniform foaming. However, bubbles are easily broken during the stirring process, resulting in uneven foaming and defects in the size of the sponge pores. In physical foaming, gas is introduced for foaming. When the gas just enters the foaming air pipe, the air pressure inside the foaming air pipe is unstable, and the air pressure close to the air inlet end is greater than the air pressure far from the air inlet end, resulting in multiple pores being unable to foam at the same time and the size of the foam produced is also different. Summary of the invention

[0004] The purpose of the present invention is to provide a production device for polyacrylamide composite polyurethane sponge to solve the above-mentioned shortcomings in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A production device for polyacrylamide composite polyurethane sponge, comprising a reaction box, wherein a foaming component is arranged in the reaction box, wherein the foaming component comprises a plurality of air blowing pipes, wherein a plurality of evenly distributed air outlet holes are opened on the air blowing pipes, and the air blowing pipes are responsible for receiving external gas, so that the air outlet holes intermittently emit gas, thereby achieving a foaming effect;

[0007] The air blast pipe is provided with a constant pressure component, the constant pressure component includes a plurality of arc-shaped baffles, and the arc-shaped baffles are rotatably connected to the outer wall of the air blast pipe;

[0008] The constant pressure component is provided with a driving component, which is used to intermittently rotate with the arc-shaped baffle. The arc-shaped baffle is responsible for blocking the air outlet for a set time after the external gas enters the air pipe. When the air pressure inside the air pipe is balanced, the driven component is taken away from the air outlet, so that each air outlet can evenly emit bubbles at the same time.

[0009] Furthermore, the foaming component also includes an air storage pipe, which is fixedly connected to a plurality of air blowing pipes and interconnected internally; an outer end of the air storage pipe is fixedly connected to an air supply pipe, and one end of the air supply pipe is connected to the air supply component.

[0010] Furthermore, a cover plate is clamped on the top of the reaction box, and the gas delivery component includes a support plate fixedly connected to the top surface of the cover plate, the side end of the support plate is fixedly connected to a reduction motor and a gas delivery box, the output end of the reduction motor is fixedly connected to a drive shaft, the outer end of the drive shaft is fixedly sleeved with a semi-cylinder, the inner wall of the gas delivery box is slidably connected to a piston plate, the bottom of the piston plate is fixedly connected to a piston rod, the bottom of the piston rod is fixedly connected to an arc plate, and one end of the gas pipe is fixedly connected to the outer end of the gas delivery box near the top.

[0011] Furthermore, the constant pressure component also includes a ring rotatably sleeved on the outer wall of the air blast pipe, a pair of rings are fixedly connected to an arc-shaped baffle, a driven gear is also movably sleeved on the air blast pipe, the ring close to the air storage pipe is fixedly connected to the driven gear, a driving gear is rotatably sleeved on the outer end of the air storage pipe, an arc-shaped ramp plate is fixedly connected to the top of the driving gear, and a plurality of the driven gears are evenly meshed and connected to the driving gears.

[0012] Furthermore, the driving component includes a telescopic tube, a hose is fixedly connected to the top of the telescopic tube, a connecting plate is also fixedly connected to the side end of the support plate, the end of the connecting plate is fixedly connected to a gas storage box close to the semi-cylinder, a cam plate is slidably connected to the inner wall of the gas storage box, one end of the flexible tube extends to the interior of the gas storage box, and the flexible tube transports gas to the interior of the telescopic tube, causing the telescopic tube to extend, forcing the arc ramp plate to rotate.

[0013] Furthermore, a fixing plate is fixedly connected to the outer wall of the gas storage pipe, and a reset member is fixedly connected between the fixing plate and the arc-shaped ramp plate.

[0014] Furthermore, the gas storage pipe comprises a hollow tube, the inner wall of the hollow tube is slidably connected with a square tube with a hollow interior, the square tube is interconnected with the gas transmission pipe, and the hollow tube is interconnected with a plurality of air blowing pipes.

[0015] Furthermore, a zone changing component is provided on the square tube, and the zone changing component includes a fixed cylinder fixedly connected to the top of the cover plate, the top of the fixed cylinder is rotatably connected to a rotating plate, the bottom surface of the rotating plate is fixedly connected to the top of the square tube, the outer end of the rotating plate is fixedly connected to a plurality of first levers, the outer end of the driving shaft is fixedly sleeved with a rotating sleeve, the outer end of the rotating sleeve is fixedly connected to a second lever, and each rotation of the second lever causes the corresponding first lever to rotate by a set angle.

[0016] Furthermore, a locking component is provided on the rotating plate, a guide groove is provided on the outer end of the fixed cylinder, a baffle is slidably connected to the guide groove, an elastic member is fixedly connected between the baffle and the guide groove, a reciprocating plate is fixedly connected to the bottom of the baffle, a pressure hole is provided on the reciprocating plate, a paddle is fixedly connected to the outer end of the driving shaft, and before the second lever pushes the corresponding first lever to rotate, the paddle pushes the baffle downward first.

[0017] Furthermore, the air blast pipe is made of metal material, and a downward moving component is provided on the air blast pipe, and the downward moving component includes a linkage ring, and the linkage ring is fixedly connected to multiple air blast pipes, and a pair of counterweights are fixedly connected to the outer end of the linkage ring, and multiple retaining rings that are evenly and vertically distributed are fixedly connected to the inner wall of the reaction box, and a pair of movable holes are opened on the retaining ring, and the adjacent upper and lower pairs of movable holes are staggered.

[0018] In the above technical scheme, the production device of polyacrylamide composite polyurethane sponge provided by the present invention has the beneficial effects:

[0019] By setting an arc-shaped baffle, each air outlet can be temporarily blocked until the internal air pressure gradually increases and gradually tends to be stable; by setting a telescopic tube, when the telescopic tube is extended, the driving gear is forced to rotate, so that the four driven gears will also rotate at the same time, and the arc-shaped baffle is forced to rotate. Since the four air blowing pipes are in high-pressure gas inside, they will lose the obstruction of the arc-shaped baffle and will start to blow bubbles through the air outlet at the same time, thereby achieving simultaneous bubbling in multiple places, and the bubbles are of the same and uniform size.

[0020] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0021] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 A schematic diagram of the overall external structure provided by an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the internal structure of a reaction box provided in an embodiment of the present invention;

[0025] Figure 3A schematic diagram of the bottom view structure of a cover plate provided in an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the structure of a gas delivery component provided in an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of the structure of a foaming component and a constant pressure component provided in an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the structure of a driving component provided by an embodiment of the present invention;

[0029] Figure 7 A schematic diagram of a portion of the structure of a driving component provided by an embodiment of the present invention;

[0030] Figure 8 A schematic diagram of the structure of a zone changing component and a locking component provided in an embodiment of the present invention;

[0031] Fig. 9 A schematic diagram of the structure of a downward moving component provided in an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Reaction box; 2. Cover plate; 3. Foaming component; 31. Air pipe; 32. Air outlet; 33. Air storage pipe; 331. Hollow pipe; 332. Square pipe; 34. Air delivery pipe; 4. Constant pressure component; 41. Arc baffle; 42. Ring; 43. Driven gear; 44. Driving gear; 45. Arc ramp plate; 5. Driving component; 51. Telescopic tube; 52. Hose; 53. Connecting plate; 54. Air storage box; 55. Cam plate; 56. Fixed plate; 57. Reset member; 6. Air delivery component; 61. Support Plate; 62, reduction motor; 63, air box; 64, drive shaft; 65, semi-cylinder; 66, piston plate; 67, piston rod; 68, arc plate; 7, zone change component; 71, fixed cylinder; 72, rotating plate; 73, first shift rod; 74, rotating sleeve; 75, second shift rod; 8, locking component; 81, guide groove; 82, baffle; 83, elastic member; 84, reciprocating plate; 85, pressure hole; 86, paddle; 9, downward moving component; 91, linkage ring; 92, counterweight block; 93, baffle ring; 94, movable hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0035] See also Figure 1-3 A production device of polyacrylamide composite polyurethane sponge comprises a reaction box 1, in which a foaming component 3 is arranged, the foaming component 3 comprises a plurality of air blast pipes 31, on which a plurality of evenly distributed air outlets 32 are provided, the air blast pipes 31 are responsible for receiving external gas, so that the air outlets 32 intermittently discharge gas, thereby playing a foaming role; a constant pressure component 4 is arranged on the air blast pipe 31, the constant pressure component 4 comprises a plurality of arc-shaped baffles 41, and the arc-shaped baffles 41 are rotatably connected to the outer wall of the air blast pipe 31; a driving component 5 is arranged on the constant pressure component 4, the driving component 5 is used for intermittently rotating with the arc-shaped baffles 41, the arc-shaped baffles 41 are responsible for blocking the air outlets 32 for a set time after the external gas enters the air blast pipe 31, and when the internal air pressure of the air blast pipe 31 is balanced, the driven component 5 is taken away from the air outlets 32, so that each air outlet 32 ​​is foamed evenly at the same time.

[0036] Specifically, a one-way valve is provided in the air outlet 32 ​​. If necessary, a waterproof membrane may be provided near the port of the air outlet 32 ​​to prevent a small amount of water from flowing back into the air inflation pipe 31 .

[0037] In the present embodiment, the staff first mixes the polyurethane and the polyacrylamide, and adds them to the solvent to stir and mix them thoroughly to make them cross-linked into a composite structure, and then foaming is carried out in the reaction box 1. The present embodiment adopts a physical foaming method, that is, a plurality of air blowing tubes 31 are arranged inside the liquid, and gas is transported to the air blowing tubes 31. When the gas is transported to the air blowing tubes 31, the air pressure inside the air blowing tubes 31 is unstable during the period when the gas just enters the air blowing tubes 31, and the air pressure close to the air inlet end is greater than the air pressure far from the air inlet end. By setting an arc-shaped baffle 41, each air outlet 32 ​​can be temporarily blocked. When the internal air pressure is higher than the external air pressure and tends to be stable, the arc-shaped baffle 41 is rotated. At this time, it can be ensured that each air outlet 32 ​​can bubble at the same time and the bubbles are uniform.

[0038] In an embodiment further provided by the present invention, the foaming component 3 also includes an air storage pipe 33, which is fixedly connected to the multiple air blowing pipes 31 and internally interconnected. The outer end of the air storage pipe 33 is fixedly connected to the air supply pipe 34, and one end of the air supply pipe 34 is connected to the air supply component 6.

[0039] See also Figure 4The top of the reaction box 1 is clamped with a cover plate 2, and the gas delivery component 6 includes a support plate 61 fixedly connected to the top surface of the cover plate 2, and the side end of the support plate 61 is fixedly connected to a reduction motor 62 and a gas delivery box 63, and the output end of the reduction motor 62 is fixedly connected to a drive shaft 64, and the outer end of the drive shaft 64 is fixedly sleeved with a semi-cylinder 65, and the inner wall of the gas delivery box 63 is slidably connected to a piston plate 66, and the bottom of the piston plate 66 is fixedly connected to a piston rod 67, and the bottom of the piston rod 67 is fixedly connected to an arc plate 68, and one end of the gas delivery pipe 34 is fixedly connected to the outer end of the gas delivery box 63 near the top; the top of the gas delivery box 63 is also fixedly connected to an air inlet pipe, and one end of the air inlet pipe can extend into the box body storing carbon dioxide, and can also be directly connected to the outside atmosphere. A one-way valve is provided inside the air inlet pipe and the air delivery pipe 34, and a return spring is fixedly connected between the piston plate 66 and the gas delivery box 63.

[0040] Turn on the reduction motor 62, which drives the semi-cylinder 65 to rotate, so that the arc plate 68 and the piston plate 66 repeatedly drive the piston plate 66 to reciprocate up and down. During the up and down movement, the piston plate 66 repeatedly squeezes the gas and delivers the gas to the gas storage pipe 33 through the gas supply pipe 34. The gas storage pipe 33 evenly distributes the gas to multiple air blowing pipes 31. In this case, four air blowing pipes 31 are taken as an example.

[0041] See also Figure 5 In an embodiment further provided by the present invention, the constant pressure component 4 also includes a ring 42 rotatably sleeved on the outer wall of the air blast pipe 31, a pair of rings 42 are fixedly connected to the arc-shaped baffle 41, a driven gear 43 is also movably sleeved on the air blast pipe 31, the ring 42 close to the air storage pipe 33 is fixedly connected to the driven gear 43, a driving gear 44 is rotatably sleeved on the outer end of the air storage pipe 33, an annular limiting groove is provided on the outer wall of the air storage pipe 33, the driving gear 44 rotates on the outer wall of the air storage pipe 33 through the annular limiting groove, an arc-shaped ramp plate 45 is fixedly connected to the top of the driving gear 44, and multiple driven gears 43 are evenly meshed and connected with the driving gears 44.

[0042] See also Figure 6 The driving component 5 includes a telescopic tube 51, a hose 52 is fixedly connected to the top of the telescopic tube 51, a connecting plate 53 is also fixedly connected to the side end of the support plate 61, and the end of the connecting plate 53 is fixedly connected to a gas storage box 54 close to the semi-cylinder 65, and a cam plate 55 is slidably connected to the inner wall of the gas storage box 54. The cam plate 55 is slidably sealed to the inner wall of the gas storage box 54, and one end of the flexible tube extends to the interior of the gas storage box 54. The flexible tube transports gas to the interior of the telescopic tube 51, so that the telescopic tube 51 extends, forcing the arc ramp plate 45 to rotate.

[0043] See also Figure 7A fixing plate 56 is fixedly connected to the outer wall of the gas storage pipe 33 , and a reset member 57 is fixedly connected between the fixing plate 56 and the arc-shaped ramp plate 45 , and the reset member 57 is an arc-shaped spring.

[0044] The reduction motor 62 carries the drive shaft 64. When the semi-cylinder 65 squeezes the piston plate 66, the four air blast tubes 31 are in a high-pressure state and gradually stabilize. At this time, the semi-cylinder 65 begins to rotate downward and presses the cam plate 55 to deliver gas to the telescopic tube 51 through the hose 52, so that the telescopic tube 51 begins to extend and rotates with the driving gear 44 through the arc ramp plate 45. The rotation angle range is between 30-75 degrees. Since the driving gear 44 is engaged with the four driven gears 43, when the driving gear 44 rotates, the four driven gears 43 will also rotate at the same time. Since the four air blast tubes 31 are in high-pressure gas, they will begin to swell bubbles through the air outlet 32 ​​at the same time, thereby achieving simultaneous bubbling in multiple places and uniform bubble size.

[0045] In the solution further provided by the present invention, the gas storage pipe 33 includes a hollow tube 331, the inner wall of the hollow tube 331 is slidably connected with a square tube 332 with a hollow interior, the square tube 332 is interconnected with the gas supply pipe 34, and the hollow tube 331 is interconnected with multiple air blowing pipes 31.

[0046] See also Figure 8 A zone changing component 7 is provided on the square tube 332, and the zone changing component 7 includes a fixed cylinder 71 fixedly connected to the top of the cover plate 2, and the top of the fixed cylinder 71 is rotatably connected to a rotating plate 72, and the bottom surface of the rotating plate 72 is fixedly connected to the top of the square tube 332, and the outer end of the rotating plate 72 is fixedly connected to a plurality of first shifting rods 73, and the outer end of the driving shaft 64 is fixedly sleeved with a rotating sleeve 74, and the outer end of the rotating sleeve 74 is fixedly connected to a second shifting rod 75, and each rotation of the second shifting rod 75 causes the corresponding first shifting rod 73 to rotate a set angle.

[0047] During the rotation process, the driving shaft 64 will also rotate with the second lever 75 through the rotating sleeve 74. Whenever the second lever 75 rotates to the position of the first lever 73, it will rotate the first lever 73 to a set angle, thereby rotating the rotating plate 72 and the square tube 332, and finally rotating the four air blowing tubes 31 to a set angle through the hollow tube 331. The rotation angle range is 5-20 degrees. Therefore, whenever one area is inflated, it will be rotated to a set angle and the next area will be inflated and foamed, finally realizing multi-area foaming treatment to make the foaming uniform.

[0048] In the solution further provided by the present invention, a locking component 8 is provided on the rotating plate 72, a guide groove 81 is provided at the outer end of the fixed cylinder 71, a baffle 82 is slidably connected to the guide groove 81, an elastic member 83 is fixedly connected between the baffle 82 and the guide groove 81, the elastic member 83 is a compression spring, a reciprocating plate 84 is fixedly connected to the bottom of the baffle 82, a pressure hole 85 is provided on the reciprocating plate 84, a paddle 86 is fixedly connected to the outer end of the driving shaft 64, and before the second lever 75 pushes the corresponding first lever 73 to rotate, the paddle 86 first pushes the baffle 82 downward.

[0049] In order to eliminate the influence of acceleration caused by inertia, a locking component 8 can also be provided. When the drive shaft 64 rotates, before the second lever 75 pushes the corresponding first lever 73 to rotate, the paddle 86 first rotates to the vicinity of the pressure hole 85. The pressure hole 85 is provided with a protrusion. The paddle 86 will press the protrusion and, under the action of the guide groove 81, will push the baffle 82 downward. Then the second lever 75 will push the corresponding first lever 73 to rotate to a set angle. Subsequently, the paddle 86 moves away from the protrusion. Then, under the action of the elastic member 83, the baffle 82 rises and blocks the first lever 73 to prevent the rotating plate 72 from continuing to rotate.

[0050] See also Fig. 9 In the solution further provided by the present invention, a downward moving component 9 is provided on the air blast pipe 31, and the downward moving component 9 includes a linkage ring 91, and the linkage ring 91 is fixedly connected to the plurality of air blast pipes 31, and a pair of counterweights 92 are fixedly connected to the outer end of the linkage ring 91, and a plurality of retaining rings 93 that are evenly and vertically distributed are fixedly connected to the inner wall of the reaction box 1, and a pair of movable holes 94 are opened on the retaining ring 93, and the adjacent upper and lower pairs of movable holes 94 are staggered; in this case, the angle formed between the upper and lower pairs of movable holes 94 is 90 degrees.

[0051] The air blast pipe 31 is made of metal material, and the counterweight block 92 is made of a material with a relatively large mass, so that the structural density of the connection between the four air blast pipes 31 and the linkage ring 91 is greater than that of the liquid.

[0052] Since the four air blowing tubes 31 will rotate slowly and intermittently during the foaming process, after rotating 90 degrees, the entire area of ​​the first layer of liquid is foamed, and the counterweight block 92 is rotated to the position of the movable hole 94 and smoothly falls to the second layer, and is caught by the second baffle ring 93, and the above operation is repeated until the entire area of ​​the liquid is foamed, finally achieving the purpose of uniform foaming in the entire area, and without the need for a stirring structure, the bubbles can be evenly distributed, the design is more reasonable, and the influence of the stirring mechanism on the destruction of bubbles is also eliminated.

[0053] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A production device for polyacrylamide composite polyurethane sponge, comprising a reaction box (1), characterized in that: A foaming component (3) is arranged in the reaction box (1), and the foaming component (3) includes a plurality of air blowing pipes (31), and a plurality of evenly distributed air outlet holes (32) are provided on the air blowing pipes (31). The air blowing pipes (31) are responsible for receiving external gas, so that the air outlet holes (32) intermittently discharge gas, thereby achieving a foaming effect; The air blast pipe (31) is provided with a constant pressure component (4), the constant pressure component (4) comprises a plurality of arc-shaped baffles (41), and the arc-shaped baffles (41) are rotatably connected to the outer wall of the air blast pipe (31); The constant pressure component (4) is provided with a driving component (5), and the driving component (5) is used for intermittently rotating with the arc-shaped baffle (41). After the external gas enters the air blast pipe (31), the arc-shaped baffle (41) is responsible for blocking the air outlet (32) for a set time. When the air pressure inside the air blast pipe (31) is balanced, the driving component (5) is driven away from the air outlet (32), so that each air outlet (32) can evenly emit bubbles at the same time.

2. The production device of polyacrylamide composite polyurethane sponge according to claim 1, characterized in that: The foaming component (3) further comprises an air storage pipe (33), the air storage pipe (33) being fixedly connected to the plurality of air blowing pipes (31) and being internally interconnected, the outer end of the air storage pipe (33) being fixedly connected to an air delivery pipe (34), one end of the air delivery pipe (34) being connected to an air delivery component (6).

3. The production device of polyacrylamide composite polyurethane sponge according to claim 2, characterized in that: The top of the reaction box (1) is clamped with a cover plate (2), and the gas delivery component (6) includes a support plate (61) fixedly connected to the top surface of the cover plate (2), and the side end of the support plate (61) is fixedly connected to a reduction motor (62) and a gas delivery box (63), and the output end of the reduction motor (62) is fixedly connected to a drive shaft (64), and the outer end of the drive shaft (64) is fixedly sleeved with a semi-cylinder (65), and the inner wall of the gas delivery box (63) is slidably connected to a piston plate (66), and the bottom of the piston plate (66) is fixedly connected to a piston rod (67), and the bottom of the piston rod (67) is fixedly connected to an arc plate (68), and one end of the gas delivery pipe (34) is fixedly connected to the outer end of the gas delivery box (63) near the top.

4. The production device of polyacrylamide composite polyurethane sponge according to claim 3, characterized in that: The constant pressure component (4) further comprises a collar (42) rotatably sleeved on the outer wall of the air blast pipe (31); a pair of collars (42) are fixedly connected to the arc-shaped baffle (41); a driven gear (43) is movably sleeved on the air blast pipe (31); the collar (42) near the air storage pipe (33) is fixedly connected to the driven gear (43); a driving gear (44) is rotatably sleeved on the outer end of the air storage pipe (33); a top of the driving gear (44) is fixedly connected to an arc-shaped ramp plate (45); and a plurality of driven gears (43) are evenly meshed and connected to the driving gear (44).

5. The production device of polyacrylamide composite polyurethane sponge according to claim 4, characterized in that: The driving component (5) comprises a telescopic tube (51), the top of which is fixedly connected to a hose (52), the side end of the support plate (61) is also fixedly connected to a connecting plate (53), the end of the connecting plate (53) is fixedly connected to a gas storage box (54) close to the semi-cylinder (65), the inner wall of the gas storage box (54) is slidably connected to a cam plate (55), one end of the flexible tube extends to the inside of the gas storage box (54), the flexible tube transports gas to the inside of the telescopic tube (51), so that the telescopic tube (51) extends, forcing the arc-shaped ramp plate (45) to rotate.

6. The production device of polyacrylamide composite polyurethane sponge according to claim 5, characterized in that: A fixing plate (56) is fixedly connected to the outer wall of the gas storage pipe (33), and a reset member (57) is fixedly connected between the fixing plate (56) and the arc-shaped ramp plate (45).

7. The production device of polyacrylamide composite polyurethane sponge according to claim 6, characterized in that: The gas storage pipe (33) comprises a hollow pipe (331), the inner wall of the hollow pipe (331) is slidably connected with a square pipe (332) with a hollow interior, the square pipe (332) is interconnected with the gas delivery pipe (34), and the hollow pipe (331) is interconnected with a plurality of air blowing pipes (31).

8. The production device of polyacrylamide composite polyurethane sponge according to claim 7, characterized in that: The square tube (332) is provided with a zone changing component (7), the zone changing component (7) comprising a fixed cylinder (71) fixedly connected to the top of the cover plate (2), the top of the fixed cylinder (71) being rotatably connected to a rotating plate (72), the bottom surface of the rotating plate (72) being fixedly connected to the top of the square tube (332), the outer end of the rotating plate (72) being fixedly connected to a plurality of first shifting rods (73), the outer end of the driving shaft (64) being fixedly sleeved with a rotating sleeve (74), the outer end of the rotating sleeve (74) being fixedly connected to a second shifting rod (75), and each rotation of the second shifting rod (75) causes the corresponding first shifting rod (73) to rotate by a set angle.

9. The production device of polyacrylamide composite polyurethane sponge according to claim 8, characterized in that: The rotating plate (72) is provided with a locking component (8), the outer end of the fixed cylinder (71) is provided with a guide groove (81), a baffle (82) is slidably connected to the guide groove (81), an elastic member (83) is fixedly connected between the baffle (82) and the guide groove (81), a reciprocating plate (84) is fixedly connected to the bottom of the baffle (82), a pressure-bearing hole (85) is provided on the reciprocating plate (84), the outer end of the driving shaft (64) is fixedly connected with a paddle (86), and before the second paddle rod (75) pushes the corresponding first paddle rod (73) to rotate, the paddle (86) first pushes the baffle plate (82) to move downward.

10. The production device of polyacrylamide composite polyurethane sponge according to claim 9, characterized in that: The air blast pipe (31) is made of metal material. A downward moving component (9) is arranged on the air blast pipe (31). The downward moving component (9) comprises a linkage ring (91). The linkage ring (91) is fixedly connected to a plurality of air blast pipes (31). A pair of counterweights (92) are fixedly connected to the outer end of the linkage ring (91). A plurality of retaining rings (93) that are evenly and vertically distributed are fixedly connected to the inner wall of the reaction box (1). A pair of movable holes (94) are formed on the retaining ring (93). The adjacent upper and lower pairs of movable holes (94) are staggered.

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