Foaming equipment and foaming method for gradient foaming material

Abstract

The invention relates to the technical field of foaming equipment, in particular to foaming equipment and a foaming method.The foaming equipment for the gradient foaming material.The foaming equipment for the gradient foaming material comprises an equipment body, a material storage tank is installed on the equipment body, a cover plate is installed on the material storage tank, and a stirring motor is installed on the cover plate; a conveying pipe is installed on the side face of the material storage tank, a spray gun is installed at the end, away from the material storage tank, of the conveying pipe, a controller is installed on the equipment body, a connecting assembly is arranged between the cover plate and the material storage tank, and a limiting assembly and a reinforcing assembly are arranged on the cover plate. The cover plate and the material storage tank can be quickly fixed and disassembled through the connecting assembly, other tools are not needed in the whole assembling and disassembling process, and compared with a traditional flange bolt fixing mode, the cover plate and the material storage tank are more convenient to separate to clean residues in the material storage tank when foaming raw materials are replaced, so that the production efficiency is improved, and the production cost is reduced. The working efficiency is improved, so that the foaming efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of foaming equipment, and particularly to a foaming equipment and a foaming method for gradient foaming materials. Background Art

[0002] Gradient foaming materials are a new type of heterogeneous materials, whose organizational structure, composition and properties can change according to a preset gradient direction, showing unique advantages and broad application prospects in multiple fields, and are produced by foaming equipment.

[0003] When preparing foaming materials using foaming equipment, the polymer raw materials required for preparing gradient foaming materials are accurately weighed according to the formula ratio and added into the storage tank. The raw materials are heated and mixed to make foaming agents, catalysts, etc. evenly dispersed in the polymer system. The uniformly mixed material is injected into a mold with a specific shape through a pipeline from a spray gun under pressure, and the shape of the mold determines the shape of the final foaming material.

[0004] Since the foaming material formulas of different products are different, after the raw materials in the storage tank are used up, it is necessary to open the cover plate to clean the residual raw materials inside the tank body to avoid affecting the new foaming materials. However, the storage tank of the existing foaming equipment and the cover body are connected by means of a flange and multiple bolts. When disassembling and installing, it is necessary to use tools to disassemble and install multiple fasteners one by one, resulting in a decrease in foaming efficiency. Summary of the Invention

[0005] (I) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a foaming equipment and a foaming method for gradient foaming materials, which have the advantage of being able to quickly install and disassemble the cover plate. Compared with the traditional fixing method of flange bolts, it is more convenient, so that when replacing the foaming raw materials, it is easier to separate the cover plate from the storage tank to clean the residue inside the storage tank and improve work efficiency.

[0006] (II) Technical Solutions To achieve the above object, the present invention provides the following technical solutions: A foaming equipment for gradient foaming materials, including an equipment main body, a storage tank is installed on the equipment main body, a cover plate is installed on the storage tank, a stirring motor is installed on the cover plate, a conveying pipe is installed on the side of the storage tank, a spray gun is installed at the end of the conveying pipe away from the storage tank, a controller is installed on the equipment main body, a connection component is arranged between the cover plate and the storage tank, and a limiting component and a reinforcement component are arranged on the cover plate; The connection component includes a support frame fixed to the upper end of the cover plate. Inside the support frame, a connection sleeve is fixed. A threaded column is threadedly connected inside the connection sleeve. The lower end of the threaded column is rotatably connected to a connection block. Two symmetrically arranged connecting rods are hinged to the connection block. One end of the connecting rod away from the connection block is hinged to a pull rod. The pull rod slidably penetrates the support frame. One end of the pull rod away from the connecting rod is hinged to a vertical plate. The vertical plate is hinged to the cover plate. A fixing plate is fixed to the end of the vertical plate away from the pull rod. A connection plate is fixed to the storage tank. A driving member is arranged between the threaded column and the cover plate; By driving the threaded column to rotate through the driving member, the threaded column moves upward, enabling the fixing plate to cooperate with the connection plate to fix the cover plate and the storage tank. When the driving member works, the limiting component is forced to work, and when the driving member works, the strengthening component also works.

[0007] Preferably, the driving member includes a driving shaft rotatably connected to the support frame. A handle is fixed to the upper end of the driving shaft. A driving gear is fixed to the driving shaft. A driven gear meshing with the driving gear is rotatably connected to the upper end of the connection sleeve.

[0008] Preferably, four first balls are rotatably connected inside the driven gear. A driving shaft is fixed to the upper end of the threaded column. Four limiting grooves are formed on the driving shaft. The four first balls are respectively connected corresponding to the four limiting grooves.

[0009] Preferably, the limiting component includes a limiting sleeve fixed to the support frame. A telescopic column is slidably arranged inside the limiting sleeve. A resisting spring is arranged inside the limiting sleeve. Two ends of the resisting spring are respectively fixed to the limiting sleeve and the telescopic column. A limiting hole is formed on the driving gear.

[0010] Preferably, a second ball is rotatably connected to the upper end of the telescopic column. A pressing piece is fixed to the telescopic column.

[0011] Preferably, the strengthening component includes an inflation chamber fixed to the upper end of the support frame. A first piston plate is slidably arranged inside the inflation chamber. A pushing plate is fixed to one side surface of the first piston plate. A resisting block is fixed to the driving shaft. An air conveying member is arranged on the side surface of the inflation chamber. A strengthening member is arranged inside the fixing plate. A resetting member is arranged between the pushing plate and the support frame.

[0012] Preferably, the air conveying member includes an air conveying pipe fixed to the side surface of the inflation chamber. One end of the air conveying pipe away from the inflation chamber is fixed to a shunt pipe. Both ends of the shunt pipe are fixed to a guiding pipe. The guiding pipe is slidably connected to both the pull rod and the vertical plate. One end of the guiding pipe away from the shunt pipe is fixed to the fixing plate.

[0013] Preferably, the reinforcement member includes an extrusion cavity formed in the fixing plate. One end of the diversion pipe away from the shunt pipe is communicated with the extrusion cavity. A second piston plate is slidably arranged inside the extrusion cavity, and a reinforcement plate is fixed to the upper end of the second piston plate.

[0014] Preferably, the reset member includes a movable groove formed in the upper end of the support frame. A sliding column is fixed inside the movable groove. The push plate is slidably sleeved on the sliding column. A reset spring is slidably sleeved on the sliding column, and two ends of the reset spring are respectively fixedly connected to the push plate and the support frame.

[0015] A foaming method of a foaming device for a gradient foaming material includes the following steps: S1: Before foaming, raw materials such as foaming agent, polymer, catalyst, crosslinking agent, etc. are respectively added into the storage tank, and then the cover plate is covered and fixed. S2: When fixing, the driving member drives the threaded column to rotate, so that the threaded column moves upward. When the threaded column moves upward, it drives the connecting block to move upward, so that the two connecting rods drive the pull rod to move. The movement of the pull rod makes the fixing plate located below the connecting plate, realizing the fixation between the cover plate and the storage tank. S3: When the driving member works, the limiting component is stressed. After the fixing is completed, the limiting component limits the driving member. S4: And when the driving member works, the reinforcement component works, thereby reinforcing the fixing plate and the connecting plate. S5: After the cover plate is fixed, the materials inside the storage tank are heated and fully stirred. Then the spray gun is aimed at the mold position, and the heated and stirred materials are pumped out and transported to the spray gun through the conveying pipe and sprayed into the mold.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. When the present invention fixes the cover plate and the storage tank, turning the handle makes the threaded rod rotate and move upward, so that the fixing plate cooperates with the connecting plate to achieve fixation. When disassembling, turning the handle in the reverse direction makes the fixing plate open to release the fixation. Through the connecting component, the rapid fixation and disassembly between the cover plate and the storage tank can be realized. No other tools are needed during the whole installation and disassembly process. Compared with the traditional flange bolt fixing method, it is more convenient. Therefore, when replacing the foaming raw materials, it is easier to separate the cover plate from the storage tank to clean the residue inside the storage tank, improving the work efficiency and thus the foaming efficiency. 2. During the process of rotating the handle to fix the cover plate and the storage tank, the driving gear will squeeze the telescopic column, causing the telescopic column to contract into the limiting sleeve and squeezing the resisting spring. As the driving gear rotates, when the position of the limiting hole corresponds to the position of the telescopic column, the telescopic column is no longer restricted by the driving gear. Under the action of the resisting spring, the telescopic column moves upward and enters the limiting hole. At this time, it indicates that the fixing of the cover plate and the storage tank has been completed, and continuous force application is no longer required. During the process of the threaded column moving to drive the fixing plate to fix the cover plate and the tank body, it is avoided that due to continuous force application to improve the fixing effect of the fixing plate, the wear between the threaded rod and the connecting sleeve is relatively large, resulting in the problem that the entire connecting component cannot be used normally. Through the limiting component, not only can the fixing effect of the connecting component be ensured, but also the problem that the connecting component cannot be used normally caused by continuous force application can be avoided; 3. At the same time, after the fixing is completed, the limiting column is inside the limiting hole, which can play a role in restricting the rotation of the driving gear. By limiting the driving gear, it is possible to avoid the problem that the handle or the driving gear is loosened by external force during the use of the foaming equipment, resulting in the loosening of the entire connecting component and the reduction of the connecting effect. Furthermore, the fixing effect of the connecting component on the cover plate and the storage tank can be ensured; 4. When fixing the cover plate and the storage tank, the rotation of the driving shaft drives the abutting block to rotate, which will squeeze the pushing plate, causing the pushing plate to push the piston plate one to move, thereby squeezing the air inside the inflating cavity. After the air inside the inflating cavity is squeezed, the squeezed air will enter the squeezing cavity. The increased pressure inside the squeezing cavity causes the piston plate two to drive the reinforcing plate to move upward, making the reinforcing plate abut against the connecting plate, thereby improving the abutting force between the fixing plate and the connecting plate, and further improving the fixing effect of the connecting component on the cover plate and the storage tank. When the reinforcing plate abuts against the connecting plate, both the connecting component and the connecting plate are stressed, which can make the cover plate fit more closely to the storage tank, and further improve the sealing performance between the cover plate and the storage tank. Description of the Drawings

[0017] Figure 1 It is the first overall schematic diagram of the device of the present invention.

[0018] Figure 2 It is the second overall schematic diagram of the device of the present invention.

[0019] Figure 3 It is the first schematic diagram of the connecting component in the device of the present invention.

[0020] Figure 4 It is the second schematic diagram of the connecting component in the device of the present invention.

[0021] Figure 5 It is the exploded view of the connecting component in the device of the present invention.

[0022] Figure 6 Schematic diagram for disassembling the threaded column and the driven gear in the device of the present invention.

[0023] Figure 7 Cross-sectional view of the connection assembly of the device of the present invention.

[0024] Figure 8 For the device of the present invention Figure 5 Enlarged schematic view at position A.

[0025] Figure 9 For the device of the present invention Figure 7 Enlarged schematic view at position B.

[0026] Figure 10 For the device of the present invention Figure 5 Enlarged schematic view at position C.

[0027] In the figure: 1. Equipment main body; 11. Storage tank; 12. Cover plate; 13. Stirring motor; 14. Delivery pipe; 15. Spray gun; 16. Controller; 2. Connection assembly; 21. Support frame; 22. Connection sleeve; 23. Threaded column; 24. Connection block; 25. Connecting rod; 26. Pull rod; 27. Vertical plate; 28. Fixed plate; 29. Connection plate; 3. Driving member; 31. Driving shaft; 32. Handle; 33. Driving gear; 34. Driven gear; 35. Ball one; 36. Driving shaft; 37. Limiting groove; 4. Limiting assembly; 41. Limiting sleeve; 42. Telescopic column; 43. Resisting spring; 44. Ball two; 45. Pressing piece; 46. Limiting hole; 5. Reinforcing assembly; 51. Inflatable cavity; 52. Piston plate one; 53. Pushing plate; 54. Resisting block; 55. Air delivery member; 551. Air delivery pipe; 552. Shunt pipe; 553. Diversion pipe; 56. Reinforcing member; 561. Extrusion cavity; 562. Piston plate two; 563. Reinforcing plate; 57. Reset member; 571. Activity groove; 572. Sliding column; 573. Reset spring. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1 Please refer to Figures 1 to 6 , which is the first embodiment of the present invention, and provides a technical solution: A foaming device for a gradient foaming material, comprising a device main body 1, on which a storage tank 11 is installed. There are two storage tanks 11 for storing raw materials of different components. A cover plate 12 is installed on the storage tank 11, and a stirring motor 13 is installed on the cover plate 12. The output end of the stirring motor 13 extends into the interior of the storage tank 11 and is fixed with a stirring rod for stirring the materials inside the storage tank 11. A conveying pipe 14 is installed on the side of the storage tank 11, and a spray gun 15 is installed at one end of the conveying pipe 14 away from the storage tank 11. A controller 16 is installed on the device main body 1. A connection component 2 is arranged between the cover plate 12 and the storage tank 11. The connection component 2 is used to fix the storage tank 11 and the cover plate 12. The fixing and disassembly processes are relatively convenient and do not require the assistance of other tools. A limiting component 4 and a reinforcement component 5 are arranged on the cover plate 12. The limiting component 4 is used to limit the rotation of the threaded column 23, improve the fixing effect of the connection component 2, and at the same time play a reminder role to avoid continuously applying force when turning the threaded rod to make the fixing plate 28 press against the connecting plate 29, resulting in a large wear between the threaded rod and the connecting sleeve 22. The reinforcement component 5 is used to improve the fixing effect between the fixing plate 28 and the connecting plate 29, and at the same time can make the cover plate 12 fit more closely to the storage tank 11 and improve the sealing effect; The connecting component 2 includes a support frame 21 fixed to the upper end of the cover plate 12. Inside the support frame 21, a connecting sleeve 22 is fixed. A threaded column 23 is threadedly connected inside the connecting sleeve 22. The lower end of the threaded column 23 is rotatably connected to a connecting block 24. Two symmetrically arranged connecting rods 25 are hinged on the connecting block 24. One end of the connecting rod 25 away from the connecting block 24 is hinged to a pull rod 26. The pull rod 26 slidably penetrates through the support frame 21. One end of the pull rod 26 away from the connecting rod 25 is hinged to a vertical plate 27. The vertical plate 27 is hinged on the cover plate 12. A fixing plate 28 is fixed to the end of the vertical plate 27 away from the pull rod 26. A connecting plate 29 is fixed on the storage tank 11. A driving member 3 is arranged between the threaded column 23 and the cover plate 12. When fixing the cover plate 12 and the storage tank 11, the driving member 3 drives the threaded column 23 to rotate, causing the threaded column 23 to move upward. When the threaded column 23 moves upward, it drives the connecting block 24 to move upward. When the connecting block 24 moves, it pulls the two connecting rods 25 to move, causing the angle between the two connecting rods 25 to gradually increase. At this time, the pull rod 26 is forced to move outward toward the outside of the support frame 21. At this time, the vertical plate 27 is forced and restricted by the hinge point between it and the cover plate 12, so that the fixing plate 28 moves downward toward the lower part of the connecting plate 29, making the fixing plate 28 located below the connecting plate 29, realizing the connection and fixation between the cover plate 12 and the storage tank 11. When disassembly is required, the driving member 3 drives the threaded rod to move downward, causing the angle between the two connecting rods 25 to gradually decrease, thereby pulling the pull rod 26. The pull rod 26 pulls the vertical plate 27, causing the vertical plate 27 to be separated from the connecting plate 29, releasing the restriction between the cover plate 12 and the storage tank 11. Through the connecting component 2, the rapid fixation and disassembly between the cover plate 12 and the storage tank 11 can be realized, and no other tools are needed, which is relatively convenient. When replacing the foaming raw material, it is more convenient to separate the cover plate 12 from the storage tank 11 to clean the residue inside the storage tank 11; The driving member 3 drives the threaded column 23 to rotate, causing the threaded column 23 to move upward, enabling the fixing plate 28 to cooperate with the connecting plate 29 to fix the cover plate 12 and the storage tank 11. When the driving member 3 works, the limiting component 4 is forced to work, and when the driving member 3 works, the reinforcing component 5 works.

[0030] The driving member 3 includes a driving shaft 31 rotatably connected to the support frame 21. A handle 32 is fixed to the upper end of the driving shaft 31. A driving gear 33 is fixed on the driving shaft 31. A driven gear 34 meshing with the driving gear 33 is rotatably connected to the upper end of the connecting sleeve 22. The number of teeth of the driving gear 33 is three times that of the driven gear 34. Therefore, when the driving gear 33 rotates one circle, the driven gear 34 rotates three circles, causing the threaded column 23 to rotate three circles. The upward or downward movement stroke of the threaded rod for three circles can meet the requirements of fixation and release of fixation. By turning the handle 32, the driving shaft 31 rotates. The rotation of the driving shaft 31 causes the driving gear 33 to rotate, thereby driving the driven gear 34 to rotate, playing a role in driving the threaded rod to rotate.

[0031] There are four first ball bearings 35 rotatably connected inside the driven gear 34. The upper end of the threaded column 23 is fixed with a drive shaft 36. Four limiting grooves 37 are formed on the drive shaft 36. The four first ball bearings 35 are respectively connected corresponding to the four limiting grooves 37. When the driving gear 33 rotates to drive the driven gear 34 to rotate, under the action of the first ball bearings 35 and the limiting grooves 37, the drive shaft 36 rotates. The rotation of the drive shaft 36 causes the threaded column 23 to rotate. Restricted by the connecting sleeve 22, the threaded column 23 rotates and moves upward or downward. Due to the setting of the first ball bearings 35, when the threaded column 23 moves upward or downward, the first ball bearings 35 rotate, which will not affect the movement of the threaded column 23.

[0032] During use, after covering the cover plate 12 on the storage tank 11, it is necessary to fix the cover plate 12 and the storage tank 11. When fixing, turn the handle 32 to make the driving shaft 31 rotate. The rotation of the driving shaft 31 causes the driving gear 33 to rotate, thereby driving the driven gear 34 to rotate, making the threaded column 23 rotate. When the threaded column 23 rotates, restricted by the connecting sleeve 22, the threaded column 23 moves upward. When the threaded column 23 moves upward, it drives the connecting block 24 to move upward. When the connecting block 24 moves, it pulls the two connecting rods 25 to move, making the angle between the two connecting rods 25 gradually increase. At this time, the pull rod 26 is stressed and moves outward toward the outside of the support frame 21. At this time, the vertical plate 27 is stressed and restricted by the hinge point between it and the cover plate 12, so that the fixing plate 28 moves downward toward the lower part of the connecting plate 29, making the fixing plate 28 located below the connecting plate 29, realizing the connection and fixation between the cover plate 12 and the storage tank 11. When disassembly is required, drive the threaded rod downward through the driving member 3 to reduce the angle between the two connecting rods 25, thereby pulling the pull rod 26. The pull rod 26 pulls the vertical plate 27, making the vertical plate 27 separate from the connecting plate 29, releasing the restriction between the cover plate 12 and the storage tank 11. Through the connecting component 2, the cover plate 12 and the storage tank 11 can be quickly fixed and disassembled. No other tools are required during the entire installation and disassembly process, which is more convenient compared with the traditional flange bolt fixing method. Therefore, when replacing the foaming raw material, it is more convenient to separate the cover plate 12 from the storage tank 11 to clean the residue inside the storage tank 11, improving work efficiency.

[0033] Embodiment 2 Please refer to Figure 5 、 Figure 7 、 Figure 9 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is: The limiting component 4 includes a limiting sleeve 41 fixed on the support frame 21. An expansion column 42 is slidably arranged inside the limiting sleeve 41. A resisting spring 43 is arranged inside the limiting sleeve 41. The two ends of the resisting spring 43 are respectively fixedly connected to the limiting sleeve 41 and the expansion column 42. A limiting hole 46 is formed in the driving gear 33. When the handle 32 is rotated to make the driving gear 33 rotate, the driving gear 33 will squeeze the expansion column 42, causing the expansion column 42 to contract into the limiting sleeve 41 and squeezing the resisting spring 43. When the position of the limiting hole 46 corresponds to the position of the expansion column 42, the expansion column 42 is no longer restricted by the driving gear 33. Under the action of the resisting spring 43, the expansion column 42 moves upward and enters the limiting hole 46. At this time, it means that the fixing of the cover plate 12 and the storage tank 11 has been completed, and there is no need to apply force continuously, avoiding the problem of large wear between the threaded rod and the connecting sleeve 22 caused by continuous force application. At the same time, after the fixing is completed, the limiting column plays a role in restricting the rotation of the driving gear 33, thereby being able to avoid the problem that the handle 32 or the driving gear 33 is loosened by an external force during the use of the foaming device, resulting in the loosening of the entire connecting component 2 and the reduction of the connecting effect.

[0034] A second ball 44 is rotatably connected to the upper end of the expansion column 42. When the driving gear 33 rotates and squeezes the expansion column 42, the second ball 44 rotates. By the rotation of the second ball 44, the friction force between the expansion column 42 and the driving gear 33 can be reduced, and thus the rotation of the driving gear 33 is made smoother. A pressing piece 45 is fixed on the expansion column 42. When disassembling, it is necessary to release the limiting effect of the expansion column 42. At this time, the pressing piece 45 is pressed downward to drive the expansion column 42 to move downward, so that it is separated from the driving gear 33 and no longer restricts the driving gear 33. Then the handle 32 is rotated to make the driving gear 33 rotate to release the fixing of the cover plate 12 and the storage tank 11.

[0035] During use, when turning the handle 32 to make the driving gear 33 rotate, the driving gear 33 will squeeze the telescopic column 42, causing the telescopic column 42 to contract into the limiting sleeve 41 and squeezing the abutting spring 43. When the position of the limiting hole 46 corresponds to the position of the telescopic column 42, the telescopic column 42 is no longer restricted by the driving gear 33. Under the action of the abutting spring 43, the telescopic column 42 moves upward and enters the limiting hole 46. At this time, it means that the fixing of the cover plate 12 and the storage tank 11 has been completed, and continuous force application is no longer required, avoiding the problem of excessive wear between the threaded rod and the connecting sleeve 22 caused by continuous force application. At the same time, after the fixing is completed, the limiting column is inside the limiting hole 46, playing a role in restricting the rotation of the driving gear 33. By limiting the driving gear 33, it is possible to prevent the handle 32 or the driving gear 33 from loosening due to external force during the use of the foaming device, resulting in the loosening of the entire connecting assembly 2 and reducing the connection effect. Furthermore, the fixing effect of the connecting assembly 2 on the cover plate 12 and the storage tank 11 can be ensured. During disassembly, the limiting effect on the telescopic column 42 needs to be released. At this time, press down the pressing piece 45 to drive the telescopic column 42 to move downward, separating it from the driving gear 33 and no longer restricting the driving gear 33. Then turn the handle 32 to make the driving gear 33 rotate to release the fixing of the cover plate 12 and the storage tank 11.

[0036] The remaining structures are the same as those in Embodiment 1.

[0037] Embodiment 3 Please refer to Figure 5 、 Figure 9 、 Figure 10 This is the third embodiment of the present invention. The difference between this embodiment and the first and second embodiments is that: The reinforcement assembly 5 includes an inflatable cavity 51 fixed to the upper end of the support frame 21. A piston plate 52 is slidably arranged inside the inflatable cavity 51. A push plate 53 is fixed to the side of the piston plate 52. An abutting block 54 is fixed on the driving shaft 31. When fixing the cover plate 12 and the storage tank 11, the driving shaft 31 drives the abutting block 54 to rotate and squeeze the push plate 53, causing the push plate 53 to push the piston plate 52 to move, thereby squeezing the air inside the inflatable cavity 51. The compressed air enters the reinforcement member 56 through the air delivery member 55, enabling the reinforcement member 56 to achieve the reinforcement effect. After the fixing of the cover plate 12 and the storage tank 11 is completed, the abutting block 54 is always in the position where it abuts against the push plate 53. An air delivery member 55 is arranged on the side of the inflatable cavity 51. A reinforcement member 56 is arranged inside the fixing plate 28. A reset member 57 is arranged between the push plate 53 and the support frame 21.

[0038] The air delivery member 55 includes an air delivery pipe 551 fixed to the side of the inflation cavity 51. One end of the air delivery pipe 551 away from the inflation cavity 51 is fixed with a shunt pipe 552. Both ends of the shunt pipe 552 are fixed with guide pipes 553. The guide pipes 553 are slidably connected to the pull rod 26 and the vertical plate 27 respectively. One end of the guide pipe 553 away from the shunt pipe 552 is fixedly connected to the fixed plate 28. The guide pipe 553 is a rubber hose and will not affect the movement of the pull rod 26 and the vertical plate 27. After the air inside the inflation cavity 51 is squeezed, the air will enter the inside of the extrusion cavity 561 through the air delivery pipe 551, the shunt pipe 552, and the guide pipe 553 in sequence, thus completing the delivery of the air flow.

[0039] The reinforcement member 56 includes an extrusion cavity 561 opened on the fixed plate 28. The guide pipe 553 is communicated with the extrusion cavity 561 at one end away from the shunt pipe 552. A second piston plate 562 is slidably arranged inside the extrusion cavity 561. A reinforcement plate 563 is fixed to the upper end of the second piston plate 562. After the squeezed air enters the inside of the guide pipe 553, it will finally enter the inside of the extrusion cavity 561. The increased pressure inside the extrusion cavity 561 causes the second piston plate 562 to drive the reinforcement plate 563 to move upward, so that the reinforcement plate 563 abuts against the connecting plate 29, thereby improving the fixing effect of the connecting assembly 2 between the cover plate 12 and the storage tank 11.

[0040] The reset member 57 includes a movable groove 571 opened at the upper end of the support frame 21. A sliding column 572 is fixed inside the movable groove 571. The push plate 53 is slidably sleeved on the sliding column 572. A reset spring 573 is slidably sleeved on the sliding column 572. The two ends of the reset spring 573 are respectively fixedly connected to the push plate 53 and the support frame 21. When the abutting block 54 squeezes the push plate 53, the push plate 53 slides on the sliding column 572 and pulls the reset spring 573. When the fixing of the cover plate 12 and the storage tank 11 is released, the push plate 53 is no longer squeezed by the abutting plate. At this time, under the action of the reset spring 573, the push plate 53 is pulled back to its original position. When the push plate 53 is reset, it pulls the first piston plate 52 back to its original position. The reset of the first piston plate 52 causes the air inside the extrusion cavity 561 to flow back into the inflation cavity 51, so that the reinforcement plate 563 and the second piston plate 562 move downward and no longer abut against the connecting plate 29.

[0041] During use, when fixing the cover plate 12 and the storage tank 11, the driving shaft 31 drives the abutting block 54 to rotate and squeeze the pushing plate 53, so that the pushing plate 53 pushes the first piston plate 52 to move, thereby squeezing the air inside the inflating cavity 51. After the air inside the inflating cavity 51 is squeezed, the squeezed air will enter the inside of the squeezing cavity 561 through the air delivery pipe 551, the shunt pipe 552, and the diversion pipe 553 in sequence. The increased pressure inside the squeezing cavity 561 causes the second piston plate 562 to drive the reinforcing plate 563 to move upward, so that the reinforcing plate 563 abuts against the connecting plate 29, thereby improving the fixing effect between the connecting component 2 of the cover plate 12 and the storage tank 11. At the same time, since the reinforcing plate 563 applies force to the connecting plate 29, the cover plate 12 can be made to fit more closely to the storage tank 11, thereby improving the sealing performance between the cover plate 12 and the storage tank 11.

[0042] The remaining structures are the same as those of Embodiments 1 and 2.

[0043] The present application embodiment provides a foaming method for a foaming device of a gradient foaming material, including the following steps: S1: Before foaming, first add raw materials such as foaming agent, polymer, catalyst, crosslinking agent, etc. into the storage tank 11, and then cover the cover plate 12 and fix it; S2: When fixing, the driving member 3 drives the threaded column 23 to rotate, so that the threaded column 23 moves upward. When the threaded column 23 moves upward, it drives the connecting block 24 to move upward, so that the two connecting rods 25 drive the pull rod 26 to move, and the movement of the pull rod 26 makes the fixing plate 28 located below the connecting plate 29, realizing the fixation between the cover plate 12 and the storage tank 11; S3: When the driving member 3 works, the limiting component 4 is stressed, and after the fixing is completed, the limiting component 4 limits the driving member 3; S4: And when the driving member 3 works, the reinforcing component 5 works, thereby reinforcing the fixing plate 28 and the connecting plate 29; S5: After the cover plate 12 is fixed, heat and fully stir the materials inside the storage tank 11, then aim the spray gun 15 at the mold position, draw out the heated and stirred materials through the delivery pipe 14 and transport them to the spray gun 15, and spray them into the mold.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foaming device for a gradient foaming material, comprising a device main body (1), characterized in that: A storage tank (11) is installed on the equipment main body (1), a cover plate (12) is installed on the storage tank (11), a stirring motor (13) is installed on the cover plate (12), a conveying pipe (14) is installed on the side of the storage tank (11), a spray gun (15) is installed at one end of the conveying pipe (14) away from the storage tank (11), a controller (16) is installed on the equipment main body (1), a connecting component (2) is arranged between the cover plate (12) and the storage tank (11), and a limiting component (4) and a reinforcing component (5) are arranged on the cover plate (12); The connecting component (2) includes a support frame (21) fixed to the upper end of the cover plate (12), a connecting sleeve (22) is fixed inside the support frame (21), a threaded column (23) is threadedly connected inside the connecting sleeve (22), the lower end of the threaded column (23) is rotatably connected to a connecting block (24), two symmetrically arranged connecting rods (25) are hinged on the connecting block (24), one end of the connecting rod (25) away from the connecting block (24) is hinged to a pull rod (26), the pull rod (26) slidably penetrates through the support frame (21), one end of the pull rod (26) away from the connecting rod (25) is hinged to a vertical plate (27), the vertical plate (27) is hinged to the cover plate (12), a fixing plate (28) is fixed to one end of the vertical plate (27) away from the pull rod (26), a connecting plate (29) is fixed on the storage tank (11), and a driving member (3) is arranged between the threaded column (23) and the cover plate (12); By driving the threaded column (23) to rotate through the driving member (3), the threaded column (23) moves upward, so that the fixing plate (28) cooperates with the connecting plate (29) to fix the cover plate (12) and the storage tank (11). When the driving member (3) works, the limiting component (4) is forced to work, and when the driving member (3) works, the reinforcing component (5) works.

2. The foaming device for a gradient foaming material according to claim 1, characterized in that: The driving member (3) includes a driving shaft (31) rotatably connected to the support frame (21), a handle (32) is fixed to the upper end of the driving shaft (31), a driving gear (33) is fixed on the driving shaft (31), and a driven gear (34) meshing with the driving gear (33) is rotatably connected to the upper end of the connecting sleeve (22).

3. The foaming device for a gradient foaming material according to claim 2, characterized in that: Four balls one (35) are rotatably connected inside the driven gear (34), a driving shaft (36) is fixed to the upper end of the threaded column (23), four limiting grooves (37) are formed on the driving shaft (36), and the four balls one (35) are respectively correspondingly connected to the four limiting grooves (37).

4. The foaming device for a gradient foaming material according to claim 2, characterized in that: The limiting component (4) includes a limiting sleeve (41) fixed to the support frame (21), a telescopic column (42) is slidably arranged inside the limiting sleeve (41), a resisting spring (43) is arranged inside the limiting sleeve (41), and two ends of the resisting spring (43) are respectively fixed to the limiting sleeve (41) and the telescopic column (42), and a limiting hole (46) is formed on the driving gear (33).

5. The foaming device for a gradient foaming material according to claim 4, characterized in that: A second ball (44) is rotatably connected to the upper end of the telescopic column (42), and a pressing piece (45) is fixed on the telescopic column (42).

6. The foaming device for a gradient foaming material according to claim 2, characterized in that: The reinforcement assembly (5) includes an inflatable cavity (51) fixed to the upper end of the support frame (21). A first piston plate (52) is slidably arranged inside the inflatable cavity (51). A pushing plate (53) is fixed to the side of the first piston plate (52). A resisting block (54) is fixed on the driving shaft (31). An air conveying member (55) is arranged on the side of the inflatable cavity (51). A reinforcing member (56) is arranged inside the fixing plate (28). A reset member (57) is arranged between the pushing plate (53) and the support frame (21).

7. The foaming device for a gradient foaming material according to claim 6, characterized in that: The air conveying member (55) includes an air conveying pipe (551) fixed to the side of the inflatable cavity (51). One end of the air conveying pipe (551) away from the inflatable cavity (51) is fixed with a shunt pipe (552). Both ends of the shunt pipe (552) are fixed with guide pipes (553). The guide pipes (553) are slidably connected to the pull rod (26) and the vertical plate (27) respectively. One end of the guide pipe (553) away from the shunt pipe (552) is fixed to the fixing plate (28).

8. The foaming device for a gradient foaming material according to claim 7, characterized in that: The reinforcing member (56) includes an extrusion cavity (561) formed on the fixing plate (28). One end of the guide pipe (553) away from the shunt pipe (552) is communicated with the extrusion cavity (561). A second piston plate (562) is slidably arranged inside the extrusion cavity (561). A reinforcing plate (563) is fixed to the upper end of the second piston plate (562).

9. The foaming device for a gradient foaming material according to claim 6, characterized in that: The reset member (57) includes a movable groove (571) formed on the upper end of the support frame (21). A sliding column (572) is fixed inside the movable groove (571). The pushing plate (53) is slidably sleeved on the sliding column (572). A reset spring (573) is slidably sleeved on the sliding column (572). Both ends of the reset spring (573) are respectively fixed to the pushing plate (53) and the support frame (21).

10. A foaming method of a foaming device for a gradient foaming material according to any one of claims 1-9, characterized in that, It includes the following steps: S1: Before foaming, first add the foaming agent, polymer, catalyst, and cross-linking agent into the storage tank (11) respectively, and then cover and fix the cover plate (12). S2: When fixing, drive the threaded column (23) to rotate through the driving member (3), so that the threaded column (23) moves upward. When the threaded column (23) moves upward, it drives the connecting block (24) to move upward, so that the two connecting rods (25) drive the pull rod (26) to move. The movement of the pull rod (26) makes the fixing plate (28) located below the connecting plate (29), realizing the fixation between the cover plate (12) and the storage tank (11). S3: When the driving member (3) works, the limiting component (4) is stressed. After the fixing is completed, the limiting component (4) limits the driving member (3). S4: And when the driving member (3) works, the reinforcement assembly (5) works, thereby strengthening the fixing plate (28) and the connecting plate (29). S5: After the cover plate (12) is fixed, heat and fully stir the materials inside the storage tank (11), then aim the spray gun (15) at the mold position, extract the heated and stirred materials, transport them through the delivery pipe (14) to the spray gun (15), and spray them into the mold.

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