Organic silicon supercritical foaming device and foaming method

Abstract

The present invention relates to the field of supercritical foaming technology, specifically to a silicone supercritical foaming device and a foaming method, comprising a conveyor, a support plate fixedly installed on the conveyor, a conveyor belt movably installed on the conveyor, an upper mold mechanism provided on the conveyor, a plurality of pairs of lower molds symmetrically fixedly installed on the conveyor belt, two guide shells fixedly installed on each of the lower molds, a closing mechanism provided on the upper mold mechanism, the closing mechanism comprising a pair of connecting frames arranged on the upper mold mechanism, a side plate slidably connected to the guide shell being fixedly installed between the pair of connecting frames; the present invention drives the conveyor belt to move by controlling the operation of the conveyor, separates the lower mold from the side plate, and drives the lower mold to move to the lower end of the conveyor; during the movement, the pair of lower molds move with each other, and under the self-gravity of the foaming material, the foaming material is facilitated to be demolded and unloaded.

Description

Technical Field

[0001] The invention relates to the technical field of supercritical foaming, in particular to an organosilicon supercritical foaming device and a foaming method. Background Art

[0002] Silicone supercritical foaming technology is an advanced process that uses supercritical fluid to foam silicone materials under high pressure and high temperature conditions. This technology can produce silicone foam materials with microporous structure, high elasticity, lightweight and excellent thermal insulation properties, and is widely used in aerospace, medical, electronic packaging, automotive and other fields.

[0003] Chinese patent publication number CN217098573U discloses a supercritical carbon dioxide molded foaming device, comprising a reaction chamber, a pipe for the entry and exit of plates running through one side of the reaction chamber, a cylindrical valve body sleeved inside the pipe, a valve cover movably connected to one end of the cylindrical valve body away from the pipe, and an array of circular plate racks arranged inside the reaction chamber.

[0004] The above patent has the advantage that the area of the plate rack can accommodate more plates within the allowed range, so that more plates can be foamed at one time, thereby improving work efficiency.

[0005] However, the above patent has the following shortcomings: when performing the demolding work, since the mold is an integrated mold, the material is fully in contact with the mold after foaming, which increases the contact area between the mold and the foaming material, and is not convenient for reducing the contact area between the mold and the foaming material, resulting in difficulty in demolding the foamed material, and when spraying the release agent on the mold, manual intervention is required, the degree of automation is low, and it is very easy to miss spraying or fail to spray the release agent in time, thereby affecting production operations.

[0006] Therefore, the present invention provides a supercritical silicone foaming device and a foaming method that are convenient for demoulding. Summary of the Invention

[0007] The object of the present invention is to provide a supercritical foaming device and a foaming method for organic silicon to solve the problems raised in the above background technology.

[0008] The technical solution of the present invention is: a silicone supercritical foaming device, comprising a conveyor, a support plate fixedly mounted on the conveyor, a conveyor belt movably mounted on the conveyor, an upper mold mechanism provided on the conveyor, and multiple pairs of lower molds symmetrically fixedly mounted on the conveyor belt, characterized in that: two guide shells are fixedly mounted on each of the lower molds, the upper mold mechanism is provided with a closing mechanism, the closing mechanism comprising a pair of connecting frames provided on the upper mold mechanism, and a side plate slidably connected to the guide shells being fixedly mounted between the pair of connecting frames;

[0009] The conveyor is provided with a spraying mechanism, which includes a fixed frame fixedly mounted on the conveyor, an inlet pipe fixedly mounted on the fixed frame, a hose connected to the inlet pipe, an end of the hose connected to a nozzle, a dredging component is commonly provided between the upper mold mechanism and the inlet pipe, a pneumatic mechanism is provided on the upper mold mechanism, and a movable component is commonly provided between the conveyor and the pneumatic mechanism;

[0010] The pneumatic mechanism includes two top shells arranged on the upper mold mechanism, each of the top shells is provided with an air inlet valve, a first piston rod is slidably mounted on the inner side of each top shell, and an air pipe is fixedly mounted on each top shell;

[0011] A pushing mechanism is provided on each of the lower molds, a magnetic attraction component is provided between the pushing mechanism and the air pipe, and a supporting component is provided between the conveyor and the plurality of lower molds.

[0012] Furthermore, the upper mold mechanism includes a mounting frame fixedly mounted on the conveyor, and the mounting frame is respectively fixed to a pair of the connecting frames and the two top shells, a hydraulic cylinder is provided on the mounting frame, an upper mold adapted to the lower mold is fixedly mounted on the telescopic end of the hydraulic cylinder, and two side rods slidingly connected to the mounting frame are fixedly mounted on the upper mold, and the side rods are fixed to the first piston rod.

[0013] Furthermore, a first interface and a second interface are fixedly mounted on the upper mold.

[0014] Furthermore, each of the lower molds is fixedly mounted with an inclined plate that is compatible with the upper mold.

[0015] Furthermore, the movable component includes two second piston rods respectively fixedly mounted on the two first piston rods, each of the second piston rods is slidably mounted with a side shell, a long sleeve fixed to the fixed frame is fixedly mounted on the side shell, the inner wall of the long sleeve is connected to a first spring, the end of the first spring is connected to a connecting rod slidably connected to the long sleeve, and the two connecting rods are fixed to the nozzle.

[0016] Furthermore, the dredging component includes a plugging sleeve fixedly mounted on the inner wall of the inlet pipe, a round shell fixedly mounted on the upper mold, a second spring connected to the inner wall of the round shell, a connecting strip connected to the end of the second spring, an inner rod fixedly mounted on the connecting strip in a sliding connection with the round shell, a sealing sheet fixedly mounted on the end of the connecting strip in a sliding connection with the inlet pipe, and a blocking block fixedly mounted on the sealing sheet in a sliding connection with the plugging sleeve.

[0017] Furthermore, the end of the air pipe is connected to a third spring, the end of the air pipe is connected to a movable sleeve, the pushing mechanism includes a support shell fixedly mounted on the lower mold, the inner wall of the support shell is connected to a fourth spring, the end of the fourth spring is connected to a movable sheet movably connected to the lower mold, the magnetic attraction assembly includes a magnetic shell connected to the end of the third spring, and the magnetic shell is connected to the movable sleeve.

[0018] Furthermore, the magnetic attraction assembly further includes a connecting tube fixedly mounted on the supporting shell, and a magnetic port movably connected to the magnetic shell is fixedly mounted on the connecting tube.

[0019] Furthermore, the support assembly includes two guide frames fixedly mounted on the conveyor, and each of the lower molds is symmetrically fixedly mounted with two support rings slidably connected to the guide frames.

[0020] A supercritical foaming method for organosilicon comprises the following steps:

[0021] Step S1, controlling the conveyor to operate so that the conveyor drives the conveyor belt to move, so that the conveyor belt drives multiple pairs of lower molds to move to the lower end of the upper mold mechanism, and controlling the upper mold mechanism and the lower mold to close, so as to foam the organic silicon raw material conveyed into the upper mold mechanism and the inner side of the lower mold;

[0022] Step S2: The upper mold mechanism drives the dredging component to move during the downward movement, so that the inlet pipe is opened and a mold release agent is sprayed on the pair of lower molds below the nozzle. At the same time, the upper mold mechanism drives the movable component to move through the pneumatic mechanism, so that the movable component drives the nozzle to move;

[0023] Step S3: After foaming is completed, the conveyor belt drives multiple pairs of the lower molds to move, so that the lower molds move to the lower end of the conveyor for demolding. When the lower mold moves to the demolding station, the magnetic attraction component is used to connect the pushing mechanism with the pneumatic mechanism. When the upper mold mechanism moves downward, gas is generated by the pneumatic mechanism, so that the gas moves into the pushing mechanism, and the foaming material adhered to the lower mold is separated from the lower mold through the pushing mechanism.

[0024] The present invention provides an improved organic silicon supercritical foaming device and foaming method, which have the following improvements and advantages compared with the prior art:

[0025] First, the present invention controls the operation of the conveyor so that the conveyor belt drives multiple pairs of lower molds to move. When a pair of lower molds moves to the foaming station, the side plates are supported by the guide shell and fit with the lower molds. The hydraulic cylinder is controlled to move so that the upper mold closes with the pair of lower molds by squeezing the inclined plate to perform the foaming work. After the foaming is completed, the conveyor belt is driven to move by controlling the operation of the conveyor so that the lower mold is separated from the side plates, and the conveyor belt drives the lower mold to move to the lower end of the conveyor. During the movement, the pair of lower molds move with each other, and under the self-gravity of the foaming material, the foaming material is facilitated to be demolded and unloaded.

[0026] Second, the present invention controls the upper mold to move downward, so that the upper mold drives the blocking block to move away from the blocking sleeve through the circular shell, the second spring, the connecting strip and the sealing sheet, controls the external release agent delivery device to deliver the release agent to the inner side of the inlet pipe, and then moves it into the inner side of the nozzle through the inlet pipe and the hose, and sprays the release agent from the nozzle to spray the release agent on the pair of lower molds in the current position. At the same time, the upper mold drives the side rod to move downward, so that the side rod drives the second piston rod to move downward through the first piston rod, so that the second piston rod squeezes the gas inside the side shell, so that the gas pushes the connecting rod through the long sleeve, so that the connecting rod drives the nozzle to move, thereby facilitating the uniform spraying of the release agent on the pair of lower molds.

[0027] Third: The present invention controls the upper mold to move downward by attracting each other through the magnetic shell and the magnetic mouth, so that the upper mold drives the first piston rod to move downward through the side rod, so that the movable rod squeezes the gas inside the top shell, and the gas moves to the inner side of the support shell through the air pipe, movable sleeve, magnetic shell, magnetic mouth and connecting pipe, so that the gas pushes the movable sheet, so that the movable sheet can push the foaming material adhered to the lower mold, thereby facilitating the unloading of the foaming material adhered to the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further explained below in conjunction with the accompanying drawings and examples:

[0029] Figure 1Schematic diagram of the three-dimensional structure of an organosilicon supercritical foaming device and foaming method of the present invention;

[0030] Figure 2 This is a schematic diagram of the three-dimensional structure of the upper mold of an organosilicon supercritical foaming device and foaming method of the present invention;

[0031] Figure 3 Schematic diagram of the three-dimensional structure of the lower mold of an organosilicon supercritical foaming device and foaming method of the present invention;

[0032] Figure 4 This is a schematic diagram of the side panel explosion structure of an organosilicon supercritical foaming device and foaming method of the present invention;

[0033] Figure 5 This is a schematic diagram of the explosion structure of the support shell of an organosilicon supercritical foaming device and foaming method of the present invention;

[0034] Figure 6 This is a schematic diagram of the three-dimensional structure of a fixing frame of an organosilicon supercritical foaming device and foaming method of the present invention;

[0035] Figure 7 Schematic diagram of the three-dimensional structure of the nozzle of an organosilicon supercritical foaming device and foaming method of the present invention;

[0036] Figure 8 This is a schematic diagram of the cross-sectional structure of the inlet pipe of an organosilicon supercritical foaming device and foaming method of the present invention;

[0037] Figure 9 The present invention is a schematic diagram of the three-dimensional structure of a guide frame of an organosilicon supercritical foaming device and foaming method.

[0038] Description of reference numerals:

[0039] 1. Conveyor; 101. Support plate; 2. Conveyor belt; 3. Mounting frame; 4. Hydraulic cylinder; 5. Upper mold; 6. Side rod; 7. First interface; 8. Second interface; 9. Lower mold; 10. Inclined plate; 11. Guide housing; 12. Connecting frame; 13. Side plate; 14. Top housing; 15. Inlet valve; 16. First piston rod; 17. Second piston rod; 18. Side housing; 19. Long sleeve; 20. First spring; 21. Connecting rod; 2 2. Fixed frame; 23. Inlet pipe; 24. Hose; 25. Nozzle; 26. Plug sleeve; 27. Round shell; 28. Second spring; 29. Inner rod; 30. Connecting strip; 31. Sealing piece; 32. Block; 33. Guide frame; 34. Support ring; 35. Air pipe; 36. Third spring; 37. Magnetic shell; 38. Movable sleeve; 39. Support shell; 40. Fourth spring; 41. Movable piece; 42. Connecting pipe; 43. Magnetic port. DETAILED DESCRIPTION

[0040] The present invention is described in detail below, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] The present invention provides an improved organic silicon supercritical foaming device and foaming method. The technical solution of the present invention is:

[0042] like Figures 1-9 As shown, a silicone supercritical foaming device includes a conveyor 1, a support plate 101 is fixedly installed on the conveyor 1, a conveyor belt 2 is movably installed on the conveyor 1, an upper mold mechanism is provided on the conveyor 1, a plurality of pairs of lower molds 9 are symmetrically fixedly installed on the conveyor belt 2, each lower mold 9 is fixedly installed with two guide shells 11, a closing mechanism is provided on the upper mold mechanism, and the closing mechanism includes a pair of connecting frames 12 arranged on the upper mold mechanism, a side plate 13 that is slidably connected to the guide shell 11 is fixedly installed between the pair of connecting frames 12, and the upper mold mechanism includes a plurality of pairs of lower molds 9, each pair of lower molds 9 is fixedly installed with two guide shells 11, and a closing mechanism is provided on the upper mold mechanism. The closing mechanism includes a pair of connecting frames 12 arranged on the upper mold mechanism, and a side plate 13 that is slidably connected to the guide shell 11 is fixedly installed between the pair of connecting frames 12. The mounting frame 3 is fixedly mounted on the conveyor 1, and the mounting frame 3 is respectively fixed to a pair of the connecting frames 12 and the two top shells 14, a hydraulic cylinder 4 is fixedly provided on the mounting frame 3, an upper mold 5 adapted to the lower mold 9 is fixedly mounted on the telescopic end of the hydraulic cylinder 4, two side rods 6 slidingly connected to the mounting frame 3 are fixedly mounted on the upper mold 5, and the side rods 6 are fixed to the first piston rod 16, a first interface 7 and a second interface 8 are fixedly mounted on the upper mold 5, and each lower mold 9 is fixedly mounted with an inclined plate 10 adapted to the upper mold 5.

[0043] Specifically, the support plate 101 can support the conveyor belt 2 to meet the support conditions for extrusion foaming. The first interface 7 is connected to the external silicone conveying equipment, and the second interface 8 is connected to the external carbon dioxide conveying equipment. The staff controls the operation of the conveyor 1 to make the conveyor 1 drive the conveyor belt 2 to move, and the conveyor belt 2 drives multiple pairs of lower molds 9 to move. When a pair of lower molds 9 moves to the foaming station, the side plate 13 is supported by the guide shell 11 and fits with the lower mold 9. The hydraulic cylinder 4 is controlled to move so that the telescopic end of the hydraulic cylinder 4 extends to drive the upper mold 5 to move downward, so that the upper mold 5 is closed with the pair of lower molds 9 through the extrusion inclined plate 10, and the external conveyor is controlled. The organosilicon raw material equipment conveys the organosilicon raw material to the inner side of the upper mold mechanism and the lower mold 9, and then conveys carbon dioxide to the inner side of the upper mold mechanism and the lower mold 9 through an external carbon dioxide conveying equipment to foam the organosilicon raw material. After the foaming is completed, the conveyor belt 2 is driven to move by controlling the operation of the conveyor 1 to separate the lower mold 9 from the side plate 13, so that the conveyor belt 2 drives the lower mold 9 to move to the lower end of the conveyor 1, and the lower mold 9 drives the support ring 34 to move to the guide frame 33, so that the guide frame 33 supports the lower mold 9 through the support ring 34. During the movement, the pair of lower molds 9 move with each other, and under the self-gravity of the foaming material, it is convenient for the foaming material to be demolded and unloaded.

[0044] In this embodiment, the conveyor 1 is provided with a spraying mechanism, which includes a fixed frame 22 fixedly mounted on the conveyor 1, an inlet pipe 23 fixedly mounted on the fixed frame 22, a hose 24 connected to the inlet pipe 23, and a nozzle 25 connected to the end of the hose 24. A dredging component is commonly provided between the upper mold mechanism and the inlet pipe 23, a pneumatic mechanism is provided on the upper mold mechanism, and a movable component is commonly provided between the conveyor 1 and the pneumatic mechanism. The movable component includes two second piston rods 17 respectively fixedly mounted on the two first piston rods 16, and each second piston rod 17 is slidably mounted with a side shell 18, and a long Sleeve 19, the inner wall of the long sleeve 19 is connected to the first spring 20, the end of the first spring 20 is connected to the connecting rod 21 which is slidably connected to the long sleeve 19, the two connecting rods 21 are fixed to the nozzle 25, the dredging component includes a plugging sleeve 26 fixedly mounted on the inner wall of the inlet pipe 23, a round shell 27 is fixedly mounted on the upper mold 5, the inner wall of the round shell 27 is connected to the second spring 28, the end of the second spring 28 is connected to a connecting strip 30, the connecting strip 30 is fixedly mounted with an inner rod 29 which is slidably connected to the round shell 27, the end of the connecting strip 30 is fixedly mounted with a sealing piece 31 which is slidably connected to the inlet pipe 23, and the sealing piece 31 is fixedly mounted with a blocking block 32 which is slidably connected to the plugging sleeve 26.

[0045] Specifically, the staff controls the upper mold 5 to move downward, so that the upper mold 5 drives the blocking block 32 to move away from the blocking sleeve 26 through the circular shell 27, the second spring 28, the connecting strip 30 and the sealing piece 31, and controls the external release agent delivery device to deliver the release agent to the inner side of the inlet pipe 23, and then moves it into the inner side of the nozzle 25 through the inlet pipe 23 and the hose 24. The nozzle 25 sprays the release agent to spray the pair of lower molds 9 in the current position. At the same time, the upper mold 5 drives the side rod 6 to move downward, so that the side rod 6 drives the second piston rod 17 to move downward through the first piston rod 16, so that the second piston rod 17 squeezes the gas inside the side shell 18, so that the gas pushes the connecting rod 21 through the long sleeve 19, so that the connecting rod 21 drives the nozzle 25 to move, thereby facilitating the uniform spraying of the release agent on the pair of lower molds 9.

[0046] When the upper mold 5 moves upward, the second spring 28 can use its own elastic force to drive the blocking block 32 to move upward through the connecting strip 30 and the sealing piece 31, so that the blocking block 32 cooperates with the blocking sleeve 26 to close the inlet pipe 23. At the same time, the first spring 20 uses its own elastic force to drive the nozzle 25 to reset through the connecting rod 21.

[0047] In this embodiment, the pneumatic mechanism includes two top shells 14 arranged on the upper mold mechanism, each top shell 14 is provided with an air inlet valve 15, the inner side of each top shell 14 is slidably mounted with a first piston rod 16, each top shell 14 is fixedly mounted with an air pipe 35, the end of the air pipe 35 is connected to a third spring 36, the end of the air pipe 35 is connected to a movable sleeve 38, and each lower mold 9 is provided with a pushing mechanism, which includes a supporting shell 39 fixedly mounted on the lower mold 9, the inner wall of the supporting shell 39 is connected to a fourth spring 40, and the end of the fourth spring 40 is connected to a spring 36 that is movably connected to the lower mold 9. A movable piece 41 is provided between the pushing mechanism and the air pipe 35, and a support assembly is provided between the conveyor 1 and multiple lower molds 9. The magnetic assembly includes a magnetic shell 37 connected to the end of the third spring 36, and the magnetic shell 37 is connected to the movable sleeve 38. The magnetic assembly also includes a connecting tube 42 fixedly mounted on the support shell 39, and a magnetic port 43 movably connected to the magnetic shell 37 is fixedly mounted on the connecting tube 42. The support assembly includes two guide frames 33 fixedly mounted on the conveyor 1, and each lower mold 9 is symmetrically fixed with two support rings 34 slidingly connected to the guide frame 33.

[0048] Specifically, when the pair of lower molds 9 move to the demoulding station, the positions of the two magnetic ports 43 just correspond to the magnetic shell 37. Under the magnetic attraction of the two magnetic ports 43, the magnetic shell 37 drives the movable sleeve 38 to move, so that the magnetic shell 37 fits with the magnetic port 43. Through the mutual attraction between the magnetic shell 37 and the magnetic port 43, the upper mold 5 is controlled to move downward, so that the upper mold 5 drives the first piston rod 16 to move downward through the side rod 6, so that the movable rod squeezes the gas inside the top shell 14, and the gas moves to the inner side of the support shell 39 through the air pipe 35, the movable sleeve 38, the magnetic shell 37, the magnetic port 43 and the connecting pipe 42, so that the gas pushes the movable sheet 41, so that the movable sheet 41 can push the foaming material adhered to the lower mold 9, thereby facilitating the unloading of the foaming material adhered to the lower mold 9.

[0049] After unloading is completed, the conveyor belt 2 drives the lower mold 9 to move, so that the two magnetic ports 43 are offset and separated from the magnetic shell 37, so that the magnetic attraction between the two magnetic ports 43 and the magnetic shell 37 is reduced, so that the fourth spring 40 can use its own elastic force to drive the magnetic shell 37 to reset and move. When the upper mold 5 moves upward, the side rod 6 drives the first piston rod 16 to move upward along the inner side of the top shell 14, so that the first piston rod 16 draws external gas into the inner side of the top shell 14 through the intake valve 15. At the same time, the third spring 36 can use its own elastic force to drive the movable sheet 41 to move again to fit with the lower mold 9.

[0050] A supercritical foaming method for organosilicon comprises the following steps:

[0051] Step S1, controlling the conveyor 1 to operate, so that the conveyor 1 drives the conveyor belt 2 to move, so that the conveyor belt 2 drives multiple pairs of the lower molds 9 to move to the lower end of the upper mold mechanism, and by controlling the upper mold mechanism and the lower mold 9 to close, the organic silicon raw material conveyed into the upper mold mechanism and the inner side of the lower mold 9 is foamed;

[0052] Step S2: During the downward movement of the upper mold mechanism, the dredging component is driven to move, so that the inlet pipe 23 is opened and the mold release agent is sprayed on the pair of lower molds 9 below the nozzle 25. At the same time, the upper mold mechanism drives the movable component to move through the pneumatic mechanism, so that the movable component drives the nozzle 25 to move.

[0053] Step S3, after foaming is completed, the conveyor belt 2 drives multiple pairs of the lower molds 9 to move, so that the lower molds 9 are moved to the lower end of the conveyor 1 for demolding. When the lower mold 9 moves to the demolding station, the magnetic attraction component is used to connect the pushing mechanism with the pneumatic mechanism. When the upper mold mechanism moves downward, gas is generated by the pneumatic mechanism, so that the gas moves into the pushing mechanism, and the foaming material adhered to the lower mold 9 is separated from the lower mold 9 by the pushing mechanism.

[0054] Working principle: The staff controls the conveyor 1 to operate, so that the conveyor 1 drives the conveyor belt 2 to move, and the conveyor belt 2 drives multiple pairs of lower molds 9 to move. When a pair of lower molds 9 moves to the foaming station, the side plate 13 is supported by the guide shell 11 and fits with the lower mold 9. The hydraulic cylinder 4 is controlled to move, so that the telescopic end of the hydraulic cylinder 4 extends to drive the upper mold 5 to move downward, so that the upper mold 5 is closed with the pair of lower molds 9 by squeezing the inclined plate 10. The external organic silicon raw material conveying equipment is controlled to convey the organic silicon raw material to the inner side of the upper mold mechanism and the lower mold 9, and then the external organic silicon raw material is conveyed to the inner side of the upper mold mechanism and the lower mold 9. The carbon dioxide conveying equipment conveys carbon dioxide to the inner side of the upper mold mechanism and the lower mold 9 to foam the organic silicon raw material. After the foaming is completed, the conveyor 1 is controlled to operate and drive the conveyor belt 2 to move, so that the lower mold 9 is separated from the side plate 13, and the conveyor belt 2 drives the lower mold 9 to move to the lower end of the conveyor 1. The lower mold 9 drives the support ring 34 to move to the guide frame 33, so that the guide frame 33 supports the lower mold 9 through the support ring 34. During the movement, the pair of lower molds 9 move with each other and perform demolding and unloading of the foamed material under the weight of the foamed material itself.

[0055] By controlling the upper mold 5 to move downward, the upper mold 5 drives the blocking block 32 to move away from the blocking sleeve 26 through the circular shell 27, the second spring 28, the connecting strip 30 and the sealing piece 31, and controls the external release agent delivery device to deliver the release agent to the inner side of the inlet pipe 23, and then moves into the inner side of the nozzle 25 through the inlet pipe 23 and the hose 24. The nozzle 25 sprays the release agent to spray the pair of lower molds 9 in the current position. At the same time, the upper mold 5 drives the side rod 6 to move downward, so that the side rod 6 drives the second piston rod 17 to move downward through the first piston rod 16, so that the second piston rod 17 squeezes the gas inside the side shell 18, so that the gas pushes the connecting rod 21 through the long sleeve 19, so that the connecting rod 21 drives the nozzle 25 to move, and evenly sprays the release agent on the pair of lower molds 9.

[0056] Through the mutual attraction between the magnetic shell 37 and the magnetic mouth 43, the upper mold 5 is controlled to move downward, so that the upper mold 5 drives the first piston rod 16 to move downward through the side rod 6, so that the movable rod squeezes the gas inside the top shell 14, and the gas moves to the inside of the support shell 39 through the air pipe 35, the movable sleeve 38, the magnetic shell 37, the magnetic mouth 43 and the connecting pipe 42, so that the gas pushes the movable sheet 41, so that the movable sheet 41 can push the foaming material adhered to the lower mold 9, and perform the material discharge work on the foaming material adhered to the lower mold 9.

[0057] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A supercritical foaming device for organic silicon, comprising a conveyor (1), a support plate (101) fixedly mounted on the conveyor (1), a conveyor belt (2) movably mounted on the conveyor (1), an upper mold mechanism provided on the conveyor (1), and a plurality of pairs of lower molds (9) symmetrically fixedly mounted on the conveyor belt (2), characterized in that: Two guide shells (11) are fixedly mounted on each of the lower molds (9); a closing mechanism is provided on the upper mold mechanism, the closing mechanism comprising a pair of connecting frames (12) provided on the upper mold mechanism; a side plate (13) slidably connected to the guide shells (11) is fixedly mounted between the pair of connecting frames (12); The conveyor (1) is provided with a spraying mechanism, the spraying mechanism comprising a fixed frame (22) fixedly mounted on the conveyor (1), an inlet pipe (23) fixedly mounted on the fixed frame (22), a hose (24) connected to the inlet pipe (23), an end of the hose (24) connected to a nozzle (25), a dredging component is provided between the upper mold mechanism and the inlet pipe (23), a pneumatic mechanism is provided on the upper mold mechanism, and a movable component is provided between the conveyor (1) and the pneumatic mechanism; The pneumatic mechanism comprises two top shells (14) arranged on the upper mold mechanism, each of the top shells (14) is provided with an air intake valve (15), a first piston rod (16) is slidably mounted on the inner side of each top shell (14), and an air pipe (35) is fixedly mounted on each top shell (14); Each lower mold (9) is provided with a pushing mechanism, a magnetic attraction component is provided between the pushing mechanism and the air pipe (35), and a supporting component is provided between the conveyor (1) and the plurality of lower molds (9); The dredging assembly includes a plugging sleeve (26) fixedly mounted on the inner wall of the inlet pipe (23), a circular shell (27) is provided on the upper mold mechanism, the inner wall of the circular shell (27) is connected to a second spring (28), the end of the second spring (28) is connected to a connecting strip (30), an inner rod (29) slidably connected to the circular shell (27) is fixedly mounted on the connecting strip (30), a sealing sheet (31) slidably connected to the inlet pipe (23) is fixedly mounted on the end of the connecting strip (30), and a blocking block (32) slidably connected to the plugging sleeve (26) is fixedly mounted on the sealing sheet (31).

2. The organic silicon supercritical foaming device according to claim 1, characterized in that: The upper mold mechanism includes a mounting frame (3) fixedly mounted on the conveyor (1), and the mounting frame (3) is respectively fixed to a pair of the connecting frames (12) and the two top shells (14), a hydraulic cylinder (4) is provided on the mounting frame (3), an upper mold (5) adapted to the lower mold (9) is fixedly mounted on the telescopic end of the hydraulic cylinder (4), and the upper mold (5) is fixed to the round shell (27), and two side rods (6) slidably connected to the mounting frame (3) are fixedly mounted on the upper mold (5), and the side rods (6) are fixed to the first piston rod (16).

3. The organosilicon supercritical foaming device according to claim 2, characterized in that: A first interface (7) and a second interface (8) are fixedly mounted on the upper mold (5).

4. The organosilicon supercritical foaming device according to claim 3, characterized in that: An inclined plate (10) adapted to the upper mold (5) is fixedly mounted on each lower mold (9).

5. The organosilicon supercritical foaming device according to claim 2, characterized in that: The movable assembly includes two second piston rods (17) respectively fixedly mounted on the two first piston rods (16), a side shell (18) is slidably mounted on each of the second piston rods (17), a long sleeve (19) fixed to the fixed frame (22) is fixedly mounted on the side shell (18), the inner wall of the long sleeve (19) is connected to a first spring (20), the end of the first spring (20) is connected to a connecting rod (21) slidably connected to the long sleeve (19), and the two connecting rods (21) are fixed to the nozzle (25).

6. The organosilicon supercritical foaming device according to claim 4, characterized in that: The end of the air pipe (35) is connected to a third spring (36), and the end of the air pipe (35) is connected to a movable sleeve (38). The pushing mechanism includes a support shell (39) fixedly mounted on the lower mold (9), the inner wall of the support shell (39) is connected to a fourth spring (40), and the end of the fourth spring (40) is connected to a movable sheet (41) movably connected to the lower mold (9). The magnetic attraction component includes a magnetic shell (37) connected to the end of the third spring (36), and the magnetic shell (37) is connected to the movable sleeve (38).

7. The organosilicon supercritical foaming device according to claim 6, characterized in that: The magnetic attraction assembly further comprises a connecting pipe (42) fixedly mounted on the supporting shell (39), and a magnetic port (43) movably connected to the magnetic shell (37) is fixedly mounted on the connecting pipe (42).

8. The organosilicon supercritical foaming device according to claim 7, characterized in that: The support assembly comprises two guide frames (33) fixedly mounted on the conveyor (1), and each lower mold (9) is symmetrically fixedly mounted with two support rings (34) slidably connected to the guide frames (33).

9. A supercritical foaming method for organic silicon, applied to the supercritical foaming device for organic silicon according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step S1, controlling the conveyor (1) to operate, so that the conveyor (1) drives the conveyor belt (2) to move, so that the conveyor belt (2) drives multiple pairs of the lower molds (9) to move to the lower end of the upper mold mechanism, and by controlling the upper mold mechanism and the lower mold (9) to close, the organic silicon raw material conveyed into the upper mold mechanism and the inner side of the lower mold (9) is foamed; Step S2, the upper mold mechanism drives the dredging component to move during the downward movement, so that the inlet pipe (23) is opened and the mold release agent is sprayed on the pair of lower molds (9) below the nozzle (25). At the same time, the upper mold mechanism drives the movable component to move through the pneumatic mechanism, so that the movable component drives the nozzle (25) to move; Step S3: After the foaming is completed, the conveyor belt (2) drives multiple pairs of the lower molds (9) to move, so that the lower molds (9) are moved to the lower end of the conveyor (1) for demoulding. When the lower mold (9) moves to the demoulding station, the magnetic attraction component is used to connect the pushing mechanism with the pneumatic mechanism. When the upper mold mechanism moves downward, gas is generated by the pneumatic mechanism, so that the gas moves into the pushing mechanism, and the foaming material adhered to the lower mold (9) is separated from the lower mold (9) by the pushing mechanism.

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