A foaming apparatus and a foaming method of a gradient foamed material

Abstract

The application relates to the technical field of foaming equipment, in particular to a foaming equipment for gradient foaming materials and a foaming method, wherein the foaming equipment for gradient foaming materials comprises 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 far from the storage tank, a controller is installed on the equipment main body, a connecting assembly is arranged between the cover plate and the storage tank, a limiting assembly and a reinforcing assembly are arranged on the cover plate, the connecting assembly can realize quick fixing and dismounting between the cover plate and the storage tank, other tools are not needed in the whole mounting and dismounting process, compared with the fixing mode of a traditional flange bolt, the method is more convenient, when the foaming raw materials are replaced, the cover plate can be separated from the storage tank to clean the residues in the storage tank, work efficiency is improved, and foaming efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foaming equipment, in particular to a foaming equipment and foaming method of gradient foaming material. BACKGROUND

[0002] Gradient foaming material is a new type of heterogeneous material, and its organizational structure, composition and performance can change in the gradient direction as pre-set, showing unique advantages and wide application prospects in many fields, and is produced by foaming equipment.

[0003] When foaming equipment is used to prepare foaming material, the polymer raw material required for preparing gradient foaming material is accurately weighed according to the formula proportion and added into the storage tank, the raw material is heated and mixed, the foaming agent, catalyst and the like are uniformly dispersed in the polymer system, and the mixed material is injected into a mold of a specific shape from a spray gun under the action of pressure, and the shape of the mold determines the shape of the final foaming material.

[0004] Because the foaming material formula of different products is different, after the raw material in the storage tank is used up, the cover plate needs to be opened to clean the residual raw material in the tank body to avoid affecting the new foaming material, and the existing foaming equipment adopts the way of flange and multiple bolts to connect the storage tank and the cover body, which needs to use tools to disassemble and assemble multiple fasteners one by one, resulting in low foaming efficiency. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the defects of the prior art, the present application provides a foaming equipment and foaming method of gradient foaming material, which has the advantages of quick installation and disassembly of the cover plate, and is more convenient than the traditional flange bolt fixing method, so that when the foaming raw material is replaced, the cover plate can be separated from the storage tank to clean the residual inside the storage tank, improving the work efficiency.

[0007] (II) Technical solutions

[0008] In order to achieve the above purpose, the present application provides the following technical solutions: a foaming equipment of gradient foaming material, comprising a device main body, a storage tank is installed on the device 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 device main body, a connecting assembly is arranged between the cover plate and the storage tank, a limiting assembly and a reinforcing assembly are arranged on the cover plate.

[0009] The connecting assembly comprises a support frame fixed to the upper end of the cover plate, a connecting sleeve is fixed in the support frame, a threaded column is threadedly connected in the connecting sleeve, a connecting block is rotatably connected to the lower end of the threaded column, two symmetrical connecting rods are hingedly connected to the connecting block, a pull rod is hingedly connected to the end of the connecting rod away from the connecting block, the pull rod is slidably connected through the support frame, a vertical plate is hingedly connected to the end of the pull rod away from the connecting rod, the vertical plate is hingedly connected to the cover plate, a fixed plate is fixed to the end of the vertical plate away from the pull rod, a connecting plate is fixed to the storage tank, and a driving member is arranged between the threaded column and the cover plate.

[0010] The threaded column is driven to rotate by the driving member, so that the threaded column moves upward, the fixed plate cooperates with the connecting plate to fix the cover plate and the storage tank, the limiting assembly works under force when the driving member works, and the reinforcing assembly works when the driving member works.

[0011] Preferably, the driving member comprises 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, and a driven gear is rotatably connected to the upper end of the connecting sleeve and engaged with the driving gear.

[0012] Preferably, four ball bearings are rotatably connected in the driven gear, a driving shaft is fixed to the upper end of the threaded column, four limiting grooves are formed in the driving shaft, and four ball bearings are connected to the limiting grooves in a one-to-one correspondence.

[0013] Preferably, the limiting assembly comprises a limiting sleeve fixed to the support frame, a telescopic column is slidably arranged in the limiting sleeve, a resisting spring is arranged in the limiting sleeve, and the two ends of the resisting spring are fixedly connected with the limiting sleeve and the telescopic column, respectively, and a limiting hole is formed in the driving gear.

[0014] Preferably, a ball bearing is rotatably connected to the upper end of the telescopic column, and a pressing piece is fixed to the telescopic column.

[0015] Preferably, the reinforcing assembly comprises an inflation cavity fixed to the upper end of the support frame, a piston plate is slidably arranged in the inflation cavity, a pushing plate is fixed to the side surface of the piston plate, a resisting block is fixed to the driving shaft, a gas conveying member is arranged on the side surface of the inflation cavity, a reinforcing member is arranged in the fixed plate, and a reset member is arranged between the pushing plate and the support frame.

[0016] Preferably, the gas conveying member comprises a gas conveying pipe fixed to the side surface of the inflation cavity, a shunt pipe is fixed to the end of the gas conveying pipe away from the inflation cavity, guide pipes are fixed to the two ends of the shunt pipe, the guide pipes are slidably connected with the pull rod and the vertical plate, and the end of the guide pipe away from the shunt pipe is fixedly connected with the fixed plate.

[0017] Preferably, the reinforcing part comprises an extrusion cavity formed on the fixing plate, the flow guide pipe is communicated with the extrusion cavity away from the shunt pipe, and the piston plate II is slidably arranged in the extrusion cavity.

[0018] Preferably, the reset part comprises a movable slot formed on the upper end of the support frame, the movable slot is internally fixed with a sliding column, the push plate is slidably sleeved on the sliding column, the reset spring is slidably sleeved on the sliding column, and the two ends of the reset spring are fixedly connected with the push plate and the support frame.

[0019] A foaming method of a foaming device of a gradient foaming material, comprising the following steps:

[0020] S1: Before foaming, the raw materials such as foaming agent, polymer, catalyst and crosslinking agent are respectively added into the storage tank, then the cover plate is covered and fixed;

[0021] S2: When fixed, the threaded column is driven to rotate by the driving part, so that the threaded column moves upward, the connecting block moves upward when the threaded column moves upward, so that the two connecting rods move the pull rod, the pull rod moves so that the fixing plate is below the connecting plate, and the fixing between the cover plate and the storage tank is realized;

[0022] S3: When the driving part works, the limiting assembly is stressed, and after the fixing is completed, the limiting assembly limits the driving part;

[0023] S4: And when the driving part works, the reinforcing assembly works, so as to reinforce the fixing plate and the connecting plate;

[0024] S5: After the cover plate is fixed, the materials in the storage tank are heated and fully stirred, then the spray gun is aimed at the mold position, the materials heated and stirred are extracted through the conveying pipe and conveyed to the spray gun, and then sprayed into the mold.

[0025] Compared with the prior art, the beneficial effects of the present application are:

[0026] 1、When the cover plate and the storage tank are fixed, the threaded rod is rotated and moved upward by rotating the handle, so that the fixing plate cooperates with the connecting plate to realize the fixing, when disassembled, the cover plate is opened to release the fixing by reversing the handle, the connecting assembly can realize the quick fixing and disassembly between the cover plate and the storage tank, and other tools are not needed during the whole installation and disassembly process, compared with the fixing mode of the traditional flange bolt, it is more convenient, so that when the foaming raw materials are replaced, it is more convenient to separate the cover plate from the storage tank to clean the residues in the storage tank, improve the working efficiency, and improve the foaming efficiency;

[0027] 2、In the process of fixing the cover plate and the storage tank by rotating the handle, the driving gear will extrude the telescopic column, so that the telescopic column shrinks into the limit sleeve and extrudes the spring. With the rotation of the driving gear, when the position of the limit hole corresponds to the position of the telescopic column, the telescopic column is no longer limited by the driving gear, and under the action of the abutting spring, the telescopic column moves upward into the limit hole. At this time, it indicates that the fixing of the cover plate and the storage tank has been completed, and there is no need to continue to exert force. In the process of moving the threaded column to drive the fixed plate to fix the cover plate and the tank body, the continuous exertion of force to improve the fixing effect of the fixed plate can cause the threaded rod and the connecting sleeve to be worn out, which can cause the entire connecting assembly to be unable to be used normally. The limiting assembly not only ensures the fixing effect of the connecting assembly, but also avoids the problem that the connecting assembly cannot be used normally caused by continuous exertion of force;

[0028] 3、At the same time, after the fixing is completed, the limiting column is in the limit hole, which can limit the rotation of the driving gear. By limiting the driving gear, the handle or the driving gear can be prevented from being loosened due to external force during use of the foaming equipment, which can cause the entire connecting assembly to be loosened and reduce the connection effect, thereby ensuring the fixing effect of the connecting assembly on the cover plate and the storage tank;

[0029] 4、When fixing the cover plate and the storage tank, the rotation of the driving shaft drives the abutting block to extrude the push plate, so that the push plate pushes the piston plate to move, thereby extruding the air in the inflation cavity. After the air in the inflation cavity is extruded, the extruded air enters the extrusion cavity. The increased pressure in the extrusion cavity causes the piston plate to move upward, so that the reinforcing plate abuts against the connecting plate, thereby improving the abutting force between the fixed plate and the connecting plate, and improving the fixing effect of the connecting assembly on the cover plate and the storage tank. When the reinforcing plate abuts against the connecting plate, the connecting assembly and the connecting plate are stressed, so that the cover plate is more closely attached to the storage tank, thereby improving the sealing between the cover plate and the storage tank. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the first overall schematic diagram of the device.

[0031] Figure 2 It is the second overall schematic diagram of the device.

[0032] Figure 3 It is the first schematic diagram of the connecting assembly in the device.

[0033] Figure 4 It is the second schematic diagram of the connecting assembly in the device.

[0034] Figure 5 It is an exploded view of the connecting assembly in the device.

[0035] Figure 6 Figure 8 is a disassembled view of the threaded column and the driven gear of the device of the present application.

[0036] Figure 7 Figure 9 is a sectional view of the connecting assembly of the device of the present application.

[0037] Figure 8 Figure 10 is an enlarged view of A in the device of the present application. Figure 5

[0038] Figure 11 is an enlarged view of B in the device of the present application. Figure 9 Figure 7 Figure 12 is an enlarged view of C in the device of the present application.

[0039] Figure 10 Figure 5 Figure 13 is an enlarged view of D in the device of the present application.

[0040] Figure 1 is a schematic view of the device of the present application. Figure 2 is a schematic view of the connecting assembly of the device of the present application. Figure 3 is a schematic view of the driving member of the device of the present application. Figure 4 is a schematic view of the limiting assembly of the device of the present application. Figure 5 is a schematic view of the reinforcing assembly of the device of the present application. Figure 6 is a schematic view of the device of the present application. Figure 7 is a schematic view of the device of the present application. Figure 8 is a disassembled view of the threaded column and the driven gear of the device of the present application. Figure 9 is a sectional view of the connecting assembly of the device of the present application. Figure 10 is an enlarged view of A in the device of the present application. Figure 11 is an enlarged view of B in the device of the present application. Figure 12 is an enlarged view of C in the device of the present application. Figure 13 is an enlarged view of D in the device of the present application. 1, device main body; 11, storage tank; 12, cover plate; 13, stirring motor; 14, conveying pipe; 15, spray gun; 16, controller; 2, connecting assembly; 21, support frame; 22, connecting sleeve; 23, threaded column; 24, connecting block; 25, connecting rod; 26, pull rod; 27, vertical plate; 28, fixed plate; 29, connecting 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, abutting spring; 44, ball two; 45, pressing piece; 46, limiting hole; 5, reinforcing assembly; 51, inflation cavity; 52, piston plate one; 53, pushing plate; 54, abutting block; 55, gas conveying member; 551, gas conveying pipe; 552, shunt pipe; 553, flow guide pipe; 56, reinforcing member; 561, extrusion cavity; 562, piston plate two; 563, reinforcing plate; 57, resetting member; 571, movable groove; 572, sliding column; 573, resetting spring. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] Embodiment 1

[0043] Please refer to Figures 1 to 6 , the first embodiment of the present application provides a technical solution:

[0044] ​​The application discloses a foaming device for gradient foaming material, which comprises a device body 1, a storage tank 11 installed on the device body 1, two storage tanks 11 for storing raw materials of different components, a cover plate 12 installed on the storage tank 11, an agitating motor 13 installed on the cover plate 12, an output end of the agitating motor 13 extending into the storage tank 11 and being fixed with a stirring rod for stirring materials in the storage tank 11, a conveying pipe 14 installed on the side of the storage tank 11, a spray gun 15 installed on the end of the conveying pipe 14 away from the storage tank 11, a controller 16 installed on the device body 1, a connecting assembly 2 arranged between the cover plate 12 and the storage tank 11 and used for fixing the cover plate 12 and the storage tank 11, a limiting assembly 4 and a reinforcing assembly 5 arranged on the cover plate 12, the limiting assembly 4 being used for limiting the rotation of a threaded column 23 and improving the fixing effect of the connecting assembly 2, and the reinforcing assembly 5 being used for improving the fixing effect between a fixing plate 28 and a connecting plate 29 and making the cover plate 12 more closely fit the storage tank 11 and improving the sealing effect.

[0045] The connecting assembly 2 comprises a support frame 21 fixed at the upper end of the cover plate 12, a connecting sleeve 22 is fixed in the support frame 21, a threaded column 23 is threadedly connected in the connecting sleeve 22, a connecting block 24 is rotatably connected to the lower end of the threaded column 23, two symmetrical connecting rods 25 are hingedly connected to the connecting block 24, a pull rod 26 is hingedly connected to the ends of the connecting rods 25 away from the connecting block 24, the pull rod 26 slidably penetrates the support frame 21, a vertical plate 27 is hingedly connected to the end of the pull rod 26 away from the connecting rods 25, the vertical plate 27 is hingedly connected to the cover plate 12, a fixed plate 28 is fixed to the end of the vertical plate 27 away from the pull rod 26, a connecting plate 29 is fixed to the storage tank 11, a driving piece 3 is arranged between the threaded column 23 and the cover plate 12, when the cover plate 12 and the storage tank 11 are fixed, the threaded column 23 is driven to rotate by the driving piece 3, so that the threaded column 23 moves upward, when the threaded column 23 moves upward, the connecting block 24 is driven to move upward, when the connecting block 24 moves, the two connecting rods 25 are pulled to move, so that the included angle between the two connecting rods 25 gradually increases, at this time the pull rod 26 is forced to move towards the outside of the support frame 21, at this time the vertical plate 27 is forced and limited by the hinge point between the vertical plate 27 and the cover plate 12, so that the fixed plate 28 moves towards the lower side of the connecting plate 29, so that the fixed plate 28 is below the connecting plate 29, realizing the connection and fixation between the cover plate 12 and the storage tank 11, when disassembling, the threaded rod is driven to move downward by the driving piece 3, so that the included angle between the two connecting rods 25 decreases, thereby pulling the pull rod 26, the pull rod 26 pulls the vertical plate 27, so that the vertical plate 27 is separated from the connecting plate 29, the restriction between the cover plate 12 and the storage tank 11 is released, the connecting assembly 2 can realize the quick fixation and disassembly between the cover plate 12 and the storage tank 11, and other tools are not needed, which is more convenient, and when the foaming raw material is replaced, the cover plate 12 and the storage tank 11 are more easily separated for cleaning the residues in the storage tank 11;

[0046] The threaded column 23 is driven to rotate by the driving piece 3, so that the threaded column 23 moves upward, so that the fixed plate 28 cooperates with the connecting plate 29 to fix the cover plate 12 and the storage tank 11, when the driving piece 3 works, the limiting assembly 4 is forced to work, and when the driving piece 3 works, the reinforcing assembly 5 works.

[0047] The driving member 3 comprises a driving shaft 31 rotatably connected to the supporting frame 21, a handle 32 fixed to the upper end of the driving shaft 31, a driving gear 33 fixed to the driving shaft 31, a driven gear 34 rotatably connected to the upper end of the connecting sleeve 22 and engaged with the driving gear 33, the number of teeth of the driving gear 33 is three times the number of teeth of the driven gear 34, so that the driving gear 33 rotates one circle, the driven gear 34 rotates three circles, the threaded column 23 rotates three circles, and the threaded rod moves up or down three circles, which can meet the needs of fixing and releasing, by twisting the handle 32, the driving shaft 31 rotates, the driving shaft 31 rotates the driving gear 33, thereby driving the driven gear 34 to rotate, which plays a role in driving the threaded rod to rotate.

[0048] The four ball bearings one 35 are rotatably connected inside the driven gear 34, the driving shaft 36 is fixed to the upper end of the threaded column 23, the four limiting grooves 37 are formed in the driving shaft 36, the four ball bearings one 35 are connected with the four limiting grooves 37 respectively, when the driving gear 33 rotates and drives the driven gear 34 to rotate, the driving shaft 36 rotates under the action of the ball bearings one 35 and the limiting grooves 37, the driving shaft 36 rotates the threaded column 23, the threaded column 23 is limited by the connecting sleeve 22 and rotates up or down, and because of the arrangement of the ball bearings one 35, the ball bearings one 35 rotates when the threaded column 23 moves up or down, which does not affect the movement of the threaded column 23.

[0049] During use, after the cover plate 12 is covered on the storage tank 11, the cover plate 12 and the storage tank 11 need to be fixed, during the fixing, the handle 32 is screwed to make the driving shaft 31 rotate, the driving shaft 31 rotates to make the driving gear 33 rotate, thereby driving the driven gear 34 to rotate, the threaded column 23 is rotated, when the threaded column 23 is rotated, the threaded column 23 is limited by the connecting sleeve 22, so that the threaded column 23 moves upwards, when the threaded column 23 moves upwards, the connecting block 24 is pulled to move upwards, when the connecting block 24 moves, the two connecting rods 25 are pulled to move, so that the included angle between the two connecting rods 25 gradually increases, at this time, the pull rod 26 is forced to move towards the outside of the support frame 21, at this time, the vertical plate 27 is forced and limited by the hinge point between the vertical plate 27 and the cover plate 12, so that the fixing plate 28 moves towards the lower part of the connecting plate 29, so that the fixing plate 28 is below the connecting plate 29, the connection between the cover plate 12 and the storage tank 11 is fixed, when disassembly is needed, the threaded rod is driven downwards by the driving part 3, so that the included angle between the two connecting rods 25 is reduced, thereby pulling the pull rod 26, the pull rod 26 pulls the vertical plate 27, so that the vertical plate 27 is separated from the connecting plate 29, the restriction between the cover plate 12 and the storage tank 11 is released, the connection assembly 2 can realize the quick fixing and disassembly between the cover plate 12 and the storage tank 11, during the whole installation and disassembly process, other tools are not needed, compared with the fixing mode of the traditional flange bolt, it is more convenient, so that when the foaming raw material is replaced, the cover plate 12 and the storage tank 11 are more convenient to separate to clean the residues in the inside of the storage tank 11, the working efficiency is improved.

[0050] Embodiment 2

[0051] Please refer to Figure 5 、 Figure 7 、 Figure 9 , the second embodiment of the application, which is different from the first embodiment is:

[0052] The limiting assembly 4 comprises a limiting sleeve 41 fixed on the support frame 21, a telescopic column 42 is slidably arranged inside the limiting sleeve 41, a contact spring 43 is arranged inside the limiting sleeve 41, both ends of the contact spring 43 are fixedly connected with the limiting sleeve 41 and the telescopic column 42 respectively, a limiting hole 46 is formed in the driving gear 33, when the rotating handle 32 rotates the driving gear 33, the driving gear 33 will extrude the telescopic column 42, so that the telescopic column 42 shrinks into the limiting sleeve 41 and extrudes the contact 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 limited by the driving gear 33, under the action of the contact spring 43, the telescopic column 42 moves upward and enters the limiting hole 46, at this time, it indicates that the fixing of the cover plate 12 and the storage tank 11 has been completed, and it is not necessary to continue to apply force, which avoids the problem that the abrasion between the threaded rod and the connecting sleeve 22 is large due to continuous application of force, and at the same time, after the fixing is completed, the limiting column plays a role in limiting the rotation of the driving gear 33, so that the problem that the handle 32 or the driving gear 33 is loosened due to external force during use of the foaming equipment, which causes the whole connecting assembly 2 to be loosened and reduces the connection effect, can be avoided.

[0053] The telescopic column 42 is rotatably connected with a ball 44 at the upper end, when the driving gear 33 rotates and extrudes the telescopic column 42, the ball 44 rotates, the rotation of the ball 44 can reduce the friction between the telescopic column 42 and the driving gear 33, so that the rotation of the driving gear 33 is more smooth, the telescopic column 42 is fixed with a pressing piece 45, when disassembling, the limiting effect of the telescopic column 42 needs to be removed, at this time, the pressing piece 45 is pressed downward to drive the telescopic column 42 to move downward, so that the telescopic column 42 is separated from the driving gear 33 and no longer limits the driving gear 33, then the rotating handle 32 is rotated to rotate the driving gear 33 to remove the fixing of the cover plate 12 and the storage tank 11.

[0054] During use, when the handle 32 is rotated to rotate the driving gear 33, the driving gear 33 will extrude the telescopic column 42, so that the telescopic column 42 is retracted into the limiting sleeve 41, and extrudes the contact 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 limited by the driving gear 33, and under the action of the contact spring 43, the telescopic column 42 moves upward into the limiting hole 46, at this time, it indicates that the fixing of the cover plate 12 and the storage tank 11 has been completed, and it is not necessary to continue to apply force, so as to avoid the problem that the threads of the threaded rod and the connecting sleeve 22 are abraded greatly due to continuous force, and after the fixing is completed, the limiting column is in the limiting hole 46, which plays a role in limiting the rotation of the driving gear 33, so that the handle 32 or the driving gear 33 is prevented from being loosened due to external force during use of the foaming equipment, the whole connecting assembly 2 is prevented from being loosened, and the problem of reducing the connecting effect is avoided, and the fixing effect of the connecting assembly 2 on the cover plate 12 and the storage tank 11 is ensured, when disassembling, the limiting effect of the telescopic column 42 needs to be released, at this time, the lower pressing piece 45 is pressed downward to drive the telescopic column 42 to move downward, so that the telescopic column 42 is separated from the driving gear 33 and no longer limits the driving gear 33, and then the handle 32 is rotated to rotate the driving gear 33 to release the fixing of the cover plate 12 and the storage tank 11.

[0055] The rest of the structure is the same as that of example 1.

[0056] Example 3

[0057] Please refer to Figure 5 、 Figure 9 、 Figure 10 , which is the third embodiment of the present application, which is different from the first and second embodiments:

[0058] The reinforcing assembly 5 comprises an inflation cavity 51 fixed to the upper end of the support frame 21, a piston plate one 52 is slidably arranged in the inflation cavity 51, a pushing plate 53 is fixed to the side surface of the piston plate one 52, a contact block 54 is fixed to the main shaft 31, when the cover plate 12 and the storage tank 11 are fixed, the rotation of the main shaft 31 drives the contact block 54 to extrude the pushing plate 53, so that the pushing plate 53 pushes the piston plate one 52 to move, thereby extruding the air in the inflation cavity 51, the compressed air enters the reinforcing part 56 through the air conveying part 55, so that the reinforcing part 56 realizes the reinforcing effect, after the cover plate 12 and the storage tank 11 are fixed, the contact block 54 is always in the position of extruding the pushing plate 53, the air conveying part 55 is arranged on the side surface of the inflation cavity 51, the reinforcing part 56 is arranged in the fixed plate 28, and the reset part 57 is arranged between the pushing plate 53 and the support frame 21.

[0059] The air conveying part 55 comprises an air conveying pipe 551 fixed on the side of the air inflating cavity 51, a shunt pipe 552 fixed on the end of the air conveying pipe 551 away from the air inflating cavity 51, and a flow guide pipe 553 fixed on both ends of the shunt pipe 552. The flow guide pipe 553 is in sliding connection with the pull rod 26 and the vertical plate 27, and is fixedly connected with the fixed plate 28 at the end away from the shunt pipe 552. The flow 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 air inflating cavity 51 is extruded, the air will enter the extrusion cavity 561 in sequence through the air conveying pipe 551, the shunt pipe 552 and the flow guide pipe 553, thereby completing the conveying of the air flow.

[0060] The reinforcing part 56 comprises an extrusion cavity 561 formed in the fixed plate 28, the flow guide pipe 553 is in communication with the extrusion cavity 561 at the end away from the shunt pipe 552, and a piston plate two 562 is slidably arranged in the extrusion cavity 561. The piston plate two 562 is fixedly connected with a reinforcing plate 563 at the upper end. After the extruded air enters the flow guide pipe 553, it will finally enter the extrusion cavity 561. The increased pressure in the extrusion cavity 561 drives the piston plate two 562 to move upward, so that the reinforcing plate 563 abuts against the connecting plate 29, thereby improving the fixing effect of the connecting assembly 2 on the cover plate 12 and the storage tank 11.

[0061] The reset part 57 comprises a movable slot 571 formed in the upper end of the support frame 21, a sliding column 572 fixed in the movable slot 571, a push plate 53 slidably sleeved on the sliding column 572, and a reset spring 573 slidably sleeved on the sliding column 572. The two ends of the reset spring 573 are fixedly connected with the push plate 53 and the support frame 21, respectively. When the abutting block 54 extrudes 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 extruded by the abutting block. At this time, the push plate 53 is pulled back to the original position under the action of the reset spring 573. When the push plate 53 is reset, the piston plate one 52 is also reset. The reset of the piston plate one 52 causes the air in the extrusion cavity 561 to flow back to the air inflating cavity 51, so that the reinforcing plate 563 and the piston plate two 562 move downward and no longer abut against the connecting plate 29.

[0062] During use, when the cover plate 12 and the storage tank 11 are fixed, the driving shaft 31 drives the abutting block 54 to rotate and extrude the push plate 53, so that the push plate 53 pushes the piston plate one 52 to move, thereby extruding the air in the inflation cavity 51. After the air in the inflation cavity 51 is extruded, the extruded air enters the extrusion cavity 561 through the gas pipe 551, the shunt pipe 552 and the flow guide pipe 553 in sequence. The pressure in the extrusion cavity 561 increases, so that the piston plate two 562 drives the reinforcing plate 563 to move upwards, so that the reinforcing plate 563 abuts against the connecting plate 29, thereby improving the fixing effect of the connecting assembly 2 on 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 more closely attached to the storage tank 11, thereby improving the sealing between the cover plate 12 and the storage tank 11.

[0063] The remaining structure is the same as that of Embodiments 1 and 2.

[0064] The embodiment of the present application provides a foaming method of a foaming device of a gradient foaming material, which comprises the following steps:

[0065] S1: Before foaming, the raw materials such as foaming agent, polymer, catalyst and crosslinking agent are respectively added into the storage tank 11, then the cover plate 12 is covered and fixed;

[0066] S2: When fixed, the threaded column 23 is driven to rotate by the driving part 3, so that the threaded column 23 moves upwards, and the connecting block 24 moves upwards when the threaded column 23 moves upwards, so that the two connecting rods 25 drive the pull rod 26 to move, and the fixed plate 28 is below the connecting plate 29, thereby realizing the fixation between the cover plate 12 and the storage tank 11;

[0067] S3: When the driving part 3 works, the limiting assembly 4 is stressed, and after the fixation is completed, the limiting assembly 4 limits the driving part 3;

[0068] S4: When the driving part 3 works, the reinforcing assembly 5 works, thereby reinforcing the fixed plate 28 and the connecting plate 29;

[0069] S5: After the cover plate 12 is fixed, the material in the storage tank 11 is heated and fully stirred, then the spray gun 15 is aimed at the mold position, the material after being heated and stirred is extracted and conveyed to the spray gun 15 through the conveying pipe 14, and is sprayed into the mold.

[0070] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A foaming device for gradient foaming material, comprising a device body (1), characterized in that: A material storage tank (11) is mounted on the main body (1) of the device, a cover plate (12) is mounted on the material storage tank (11), a stirring motor (13) is mounted on the cover plate (12), a delivery pipe (14) is mounted on the side of the material storage tank (11), a spray gun (15) is mounted on the end of the delivery pipe (14) away from the material storage tank (11), a controller (16) is mounted on the main body (1), a connecting assembly (2) is arranged between the cover plate (12) and the material storage tank (11), and a limiting assembly (4) and a reinforcing assembly (5) are arranged on the cover plate (12); The connecting assembly (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 to the inside of 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), the end of the connecting rod (25) away from the connecting block (24) is hinged to a pull rod (26), the pull rod (26) slides through the support frame (21), the 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), the end of the vertical plate (27) away from the pull rod (26) is fixed with a fixed plate (28), a connecting plate (29) is fixed to the storage tank (11), and a driving member (3) is provided between the threaded column (23) and the cover plate (12); The driving member (3) drives the threaded column (23) to rotate, so that 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) is working, the limiting component (4) is forced to work, and when the driving member (3) is working, the reinforcing component (5) is worked; 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 to 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); The limiting assembly (4) includes a limiting sleeve (41) fixed on the support frame (21), a telescopic column (42) is slidably provided inside the limiting sleeve (41), a resisting spring (43) is provided inside the limiting sleeve (41), and two ends of the resisting spring (43) are respectively fixedly connected to the limiting sleeve (41) and the telescopic column (42), and a limiting hole (46) is opened on the driving gear (33), and when the telescopic column (42) moves upward, it can enter the limiting hole (46); The reinforcement component (5) includes an air-filling chamber (51) fixed to the upper end of the support frame (21), a piston plate (52) is slidably provided inside the air-filling chamber (51), a push plate (53) is fixed on the side of the piston plate (52), a resistance block (54) is fixed on the driving shaft (31), an air delivery member (55) is provided on the side of the air-filling chamber (51), a reinforcement member (56) is provided inside the fixed plate (28), and a reset member (57) is provided between the push plate (53) and the support frame (21), and when the resistance block (54) rotates, it squeezes the push plate (53) and allows the pressurized air to enter the reinforcement member (56) through the air delivery member (55).

2. The foaming device of a gradient foam material according to claim 1, characterized in that: Four ball bearings (35) are rotatably connected inside the driven gear (34), a driving shaft (36) is fixed to the upper end of the threaded column (23), and four limiting grooves (37) are formed on the driving shaft (36), and the four ball bearings (35) are respectively connected to the four limiting grooves (37).

3. The foaming device of a gradient foam material according to claim 1, characterized in that: The upper end of the telescopic column (42) is rotatably connected to a second ball bearing (44), and a lower pressing plate (45) is fixed on the telescopic column (42).

4. The foaming device of the gradient foam material according to claim 1, characterized in that: The gas delivery member (55) includes a gas delivery pipe (551) fixed to the side of the inflation chamber (51), a diversion pipe (552) fixed to one end of the gas delivery pipe (551) away from the inflation chamber (51), and flow guide pipes (553) fixed to both ends of the diversion pipe (552). The flow guide pipe (553) is slidably connected to the pull rod (26) and the vertical plate (27), and the end of the flow guide pipe (553) away from the diversion pipe (552) is fixedly connected to the fixed plate (28).

5. The foaming device of the gradient foam material according to claim 4, characterized in that: The reinforcing member (56) includes an extrusion chamber (561) provided on the fixed plate (28); one end of the guide tube (553) away from the diversion tube (552) is connected to the extrusion chamber (561); a second piston plate (562) is slidably provided inside the extrusion chamber (561); and a reinforcing plate (563) is fixed to the upper end of the second piston plate (562).

6. The foaming device for a gradient foam material according to claim 1, characterized in that: The reset member (57) includes a movable groove (571) provided 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 slidingly sleeved on the sliding column (572), and a reset spring (573) is provided on the sliding sleeve on the sliding column (572), and the two ends of the reset spring (573) are fixedly connected to the push plate (53) and the support frame (21), respectively.

7. The foaming method of the gradient foaming material foaming device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: Before foaming, the foaming agent, polymer, catalyst, and cross-linking agent are added into the storage tank (11) respectively, and then the cover plate (12) is covered and fixed; S2: When fixing, the threaded column (23) is driven to rotate by the driving member (3), so that the threaded column (23) moves upward, and when the threaded column (23) moves upward, the connecting block (24) is driven to move upward, so that the two connecting rods (25) drive the pull rod (26) to move, and the pull rod (26) moves so that the fixing plate (28) is located below the connecting plate (29), thereby achieving fixation between the cover plate (12) and the storage tank (11); S3: When the driving member (3) is working, the limiting component (4) is subjected to force, and after the fixing is completed, the limiting component (4) limits the driving member (3); S4: When the driving member (3) is in operation, the reinforcing assembly (5) is operated, thereby reinforcing the fixing plate (28) and the connecting plate (29); S5: After the cover plate (12) is fixed, the material inside the storage tank (11) is heated and fully stirred, and then the spray gun (15) is aimed at the mold position, and the heated and stirred material is extracted and transported to the spray gun (15) through the conveying pipe (14) and sprayed into the mold.

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