Etpu material forming equipment, forming process and new pearl eTPU material

Abstract

The eTPU material molding equipment, molding process, and new pearlescent eTPU material of this invention belong to the field of polymer material processing. The eTPU material molding equipment is equipped with an inner core plate assembly inside a high-pressure autoclave. The inner core plate assembly is formed by folding together a top plate assembly, a middle plate assembly, and a bottom plate assembly. Air pipe assembly one, air pipe assembly two, and air pipe assembly three are respectively arranged on the top plate assembly, the middle plate assembly, and the bottom plate assembly. Each of the air pipe assembly one, air pipe assembly two, and air pipe assembly three consists of several air pipe rods, so that the introduced foaming gas can fully contact the eTPU granular material. The inner core plate assembly also includes a first guide rod assembly and a second guide rod assembly. In order to accelerate the movement of the eTPU granular material, the first guide rod assembly and the second guide rod assembly are repeatedly rotated in the forward and reverse directions, driving the top plate assembly, the middle plate assembly, and the bottom plate assembly to reciprocate up and down movements, finally forming an up and down shaking motion, resulting in good foaming effect.

Description

Technical Field

[0001] This invention relates to the field of polymer material processing, specifically to eTPU material molding equipment, molding process, and new pearlescent eTPU material. Background Technology

[0002] eTPU (Expended Thermoplastic Polyurethanes) is a type of foamed thermoplastic polyurethane that inherits the excellent elasticity of TPU. It can absorb impact and quickly recover its shape, exhibiting excellent resilience. It also has excellent abrasion resistance and tear resistance, making it frequently used in the midsoles, insoles, cushions, automotive interiors, and packaging materials of athletic shoes. To give eTPU a better appearance, materials such as pearlescent powder are usually added to eTPU, making it an eTPU material with a pearlescent effect. In the preparation of pearlescent eTPU materials, the foaming process has a significant impact on the material molding. Existing thermoplastic polyurethane foam material preparation processes, such as patent document 1 (CN115648527A), disclose a continuous polymer foaming bead preparation device and method. This method mainly uses an autoclave intermittent foaming process to prepare polymer foamed beads. The preparation device includes an autoclave, a vibrating bed, a feeding unit, a discharging unit, and a foaming agent injection port. The vibrating bed is located inside the autoclave. After the material enters from the feeding unit, it passes through the vibrating bed. After the foaming agent is injected from the foaming agent injection port, the material on the vibrating bed absorbs the foaming agent gas, forming polymer particles containing the foaming agent. These particles are then discharged by the discharging unit. Although the continuous feeding process is achieved by setting up a first and second feeding unit for intermittent feeding, the foaming agent injection port is directly located inside the autoclave. This can lead to problems when polymer particles continuously enter the vibrating bed. The gas injection port is far from the vibrating bed, and the polymer particles will form a stacked state on the vibrating bed. In this way, the gaseous foaming agent cannot make good contact with the particles, thus affecting the diffusion of the foaming agent into the polymer microparticles. It also makes it impossible for the outer surface of the material to be in uniform contact with the gaseous foaming agent, ultimately affecting the formation of foamed particles. In addition, due to the low contact efficiency of the gaseous foaming agent, the entire processing time is also longer. For example, Patent Document 2 (CN119017623A) discloses a primary foaming device with secondary foaming performance. It is equipped with a cooling pipe at the lower end of the reactor. After the material comes out of the reactor, it is cooled by several circularly arranged capillaries. Since the capillaries can directly contact the material, the cooling effect is good. However, since it is for cooling, the capillaries are filled with coolant, and the material flows sequentially in the cooling pipe, which cannot guarantee that the material is completely cooled.

[0003] In summary, while existing eTPU foaming processes have solved the problem of continuous preparation of polymer foam beads, the foaming agent does not fully contact the particles to be foamed during the foaming process. Furthermore, the polymer foam beads can only move continuously from the inlet to the outlet, failing to achieve reciprocating contact between the foaming agent and the particles. This makes the preparation process lengthy and reduces the controllability of the foaming process. Although existing technologies involve passing the foamed particles through several capillaries, their main function is cooling, not controlling how well the foaming agent contacts the particles during the foaming process. Therefore, this application provides an eTPU material molding equipment, molding process, and a new pearlescent eTPU material that can effectively control the foaming process of polymer microparticles, resulting in more uniform particle foaming and a shorter foaming time. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an eTPU material molding device, which includes an autoclave, an injection port and a material injection port assembly at the top of the autoclave, and a discharge port assembly at the bottom of the autoclave. The autoclave includes an autoclave body, a top cover plate, a bottom plate, and an inner core plate assembly. The top cover plate is located at the top of the autoclave body, the injection port and the material injection port assembly are located on the top cover plate, the bottom plate is located at the bottom of the autoclave body, the discharge port assembly is located on the bottom plate, and the inner core plate assembly is located inside the autoclave body and between the top cover plate and the bottom plate. The invention is characterized by: The inner core plate assembly consists of several folded plate assemblies and several upper cover plates. Each folded plate assembly includes a top plate assembly, a bottom plate assembly, and several intermediate plate assemblies. An upper cover plate is provided on each of the top plate assembly, bottom plate assembly, and intermediate plate assembly. A first feeding port is formed at the upper end of the top plate assembly, a second feeding port is formed at the upper end of the intermediate plate assembly, and a third feeding port is formed at the upper end of the bottom plate assembly. The top plate assembly has a top sealing plate at its upper end and an end mesh plate assembly one at its lower end. The intermediate plate assemblies have an end mesh plate assembly two at its upper end and an end mesh plate assembly three at its lower end. The bottom plate assembly has an end mesh plate assembly four at its upper end and an end mesh plate assembly four at its lower end. The system includes five end mesh plate assemblies. The lower end of the first end mesh plate assembly is hinged to the upper end of the second end mesh plate assembly, and the lower end of the third end mesh plate assembly is hinged to the upper end of the fourth end mesh plate assembly. The top sealing plate is hinged to the top cover plate, and the lower end of the fifth end mesh plate assembly is hinged to the bottom plate. A plurality of air pipe assemblies are arranged between the top sealing plate and the first end mesh plate assembly, a plurality of air pipe assemblies are arranged between the second and third end mesh plate assemblies, and a plurality of air pipe assemblies are arranged between the fourth and fifth end mesh plate assemblies. The lower end of the top plate assembly has a lower opening, and the lower end of the intermediate plate assembly has a lower opening. The bottom plate assembly has a lower opening (third opening) at its lower end. The injection port assembly is connected to the first feeding port, the lower opening (first opening) is connected to the second feeding port, the lower opening (second opening) is connected to the third feeding port, and the lower opening (third opening) is connected to the discharge port assembly. The air pipe assembly (first, second, and third) is connected to the air injection port. After the eTPU granules are added through the injection port assembly, they pass through several air pipe assemblies (first, second, and third) and can fully contact the foaming agent to form eTPU granules containing the foaming agent, which are then discharged through the discharge port assembly.

[0005] Preferably, the folding board assembly includes a first foam board assembly and a second foam board assembly along the vertical direction, with the first and second foam board assemblies arranged side by side and adjacent to each other. The first end mesh board assembly includes two first-layer stacked board assemblies, the second end mesh board assembly includes two second-layer stacked board assemblies, the third end mesh board assembly includes two third-layer stacked board assemblies, the fourth end mesh board assembly includes two fourth-layer stacked board assemblies, and the fifth end mesh board assembly includes two fifth-layer stacked board assemblies. The first and second foam board assemblies are interconnected and are arranged in a mirror-symmetric manner, that is, with the contact surface of the first and second foam board assemblies as the symmetry plane, the structures of the first and second foam board assemblies are mirror-symmetric.

[0006] Preferably, the top plate assembly of the first foaming plate group includes a first box body, a screw drive assembly, the air pipe assembly, and a first stacked plate assembly. The first box body includes a bottom plate, a first side plate, a second side plate, and a top sealing plate. The first side plate and the second side plate are disposed on both sides of the bottom plate in the width direction, and the top sealing plate is disposed on one side of the bottom plate in the length direction. The first stacked plate assembly includes a first sliding horizontal plate and a first rotating vertical plate. The first sliding horizontal plate is provided with a plurality of horizontal slots, and the first rotating vertical plate is provided with a plurality of vertical slots. When the first sliding horizontal plate and the first rotating vertical plate are in contact with each other, the plurality of horizontal slots on the first sliding horizontal plate and the plurality of vertical slots on the first rotating vertical plate form a through hole for the air pipe assembly to pass through. The other end of the air pipe assembly is fixedly disposed on the top sealing plate.

[0007] Preferably, the first rotating vertical plate is rotatably disposed between the first side plate and the second side plate. A spherical groove is formed on the inner side of the first rotating vertical plate, and a lead screw through hole is formed on the inner side of the first sliding horizontal plate. The lead screw drive assembly includes a lead screw and a hinged ball. One end of the lead screw is rotatably disposed on the top sealing plate, and the other end is rotatably disposed in the hinged ball. The hinged ball is rotatably disposed in the spherical groove. The lead screw and the lead screw through hole are threadedly connected. By rotating the lead screw, the first sliding horizontal plate can be driven to slide along the first side plate and the second side plate. A discharge side hole is formed near the top sealing plate on the first side plate. Through the discharge side hole, when the first sliding horizontal plate slides from bottom to top, it can drive the eTPU granular material from the first foaming plate assembly into the second foaming plate assembly, thereby achieving communication.

[0008] Preferably, the intermediate plate group of the first foaming plate group includes a second box body, a second screw drive group, a second air pipe group, a second layered plate group, and a third layered plate group. The second box body includes a second base plate, a third side plate, and a fourth side plate. The third side plate and the fourth side plate are disposed on both sides of the width direction of the second base plate. The second layered plate group is disposed on one side of the length direction of the second base plate, and the third layered plate group is disposed on the other side of the length direction of the second base plate. The second layered plate group includes a second sliding horizontal plate and a second rotating vertical plate. The second sliding horizontal plate is provided with a plurality of transverse slots, and the second rotating vertical plate is provided with... There are several vertical slots. When the second sliding horizontal plate and the second rotating vertical plate are in contact with each other, the several horizontal slots on the second sliding horizontal plate and the several vertical slots on the second rotating vertical plate form a through hole for one end of the tracheal tube assembly to pass through. The third stacked plate assembly includes a third sliding horizontal plate and a third rotating vertical plate. The third sliding horizontal plate is provided with several horizontal slots, and the third rotating vertical plate is provided with several vertical slots. When the third sliding horizontal plate and the third rotating vertical plate are in contact with each other, the several horizontal slots on the third sliding horizontal plate and the several vertical slots on the third rotating vertical plate form a through hole for the other end of the tracheal tube assembly to pass through.

[0009] Preferably, the second and third rotating vertical plates are rotatably disposed between the third and fourth side plates. A second spherical groove is formed on the inner side of the second rotating vertical plate, and a first spherical groove is formed on the inner side of the third rotating vertical plate. A first lead screw passage hole is formed on the inner side of the third sliding horizontal plate, and a second lead screw passage hole is formed on the inner side of the second sliding horizontal plate. The second lead screw drive assembly includes a lead screw and two hinged balls. The two ends of the lead screw are respectively rotatably disposed in one of the hinged balls. One of the hinged balls is rotatably disposed in the first spherical groove, and the other hinged ball is rotatably disposed in the second spherical groove. The lead screw and the lead screw are threadedly connected through the first lead screw passage hole. By rotating the lead screw, the third sliding horizontal plate can be driven to slide along the third and fourth side plates. A second discharge side hole is formed near the second layer stacked plate group on the third side plate. Through the second discharge side hole, when the third sliding horizontal plate slides from bottom to top, it can drive the eTPU granular material from the first foaming plate group into the second foaming plate group, thereby achieving communication.

[0010] Preferably, the base plate assembly of the first foaming board group includes a third box body, a third screw drive assembly, a third air pipe assembly, a fourth layer stacked plate assembly, and a fifth layer stacked plate assembly. The third box body includes a third base plate, a fifth side plate, and a sixth side plate. The fifth and sixth side plates are disposed on both sides of the width direction of the third base plate. The fourth layer stacked plate assembly is disposed on one side of the length direction of the third base plate, and the fifth layer stacked plate assembly is disposed on the other side of the length direction of the third base plate. The fourth layer stacked plate assembly includes a fourth sliding horizontal plate and a fourth rotating vertical plate. The fourth sliding horizontal plate has several transverse slots, and the fourth rotating vertical plate has several vertical slots. When the fourth sliding horizontal plate and the fourth rotating vertical plate are in contact with each other, the transverse slots on the fourth sliding horizontal plate and the vertical slots on the fourth rotating vertical plate form a through hole four for one end of the tracheal tube assembly three to pass through. The fifth layer stacked plate assembly includes a fifth sliding horizontal plate and a fifth rotating vertical plate. The fifth sliding horizontal plate has several transverse slots, and the fifth rotating vertical plate has several vertical slots. When the fifth sliding horizontal plate and the fifth rotating vertical plate are in contact with each other, the fourth sliding horizontal plate has several transverse slots, and the fifth rotating vertical plate has several vertical slots. When the fifth sliding horizontal plate and the fifth rotating vertical plate are in contact with each other, the fourth sliding horizontal plate has several transverse slots, and the fifth rotating vertical plate has several vertical slots. The plurality of transverse slots on the fifth sliding horizontal plate and the plurality of vertical slots on the fifth rotating vertical plate form a through hole five for the other end of the tracheal tube assembly three to pass through; the fourth and fifth rotating vertical plates are rotatably disposed between the fifth and sixth side plates, and a spherical groove two is provided on the inner side of the fourth rotating vertical plate, and a spherical groove one is provided on the inner side of the fifth rotating vertical plate; a lead screw through hole one is provided on the inner side of the fifth sliding horizontal plate, and a lead screw through hole two is provided on the inner side of the fourth sliding horizontal plate; the lead screw drive assembly three includes a lead screw and two hinged balls, and the two balls of the lead screw... Each end is rotatably disposed within a hinged ball. One hinged ball is rotatably disposed within a spherical groove one, and the other hinged ball is rotatably disposed within a spherical groove two. A lead screw and a lead screw are threadedly connected through a hole one. Rotating the lead screw drives the fifth sliding cross plate to slide along the fifth and sixth side plates. A discharge side hole three is provided on the fifth side plate near the fourth layer of stacked plates. Through the discharge side hole three, the fifth sliding cross plate, as it slides from bottom to top, can carry eTPU granular material from the first foaming plate group into the second foaming plate group, achieving communication. Preferably, the lead screw through hole two is a smooth hole.

[0011] Preferably, the inner core plate assembly further includes a first guide rod assembly and a second guide rod assembly, which respectively adjust the rotation angles of the top plate assembly, the middle plate assembly, and the bottom plate assembly of the inner core plate assembly.

[0012] In addition, an eTPU material molding process is also provided, including the following steps:

[0013] I. Preparation of eTPU particulate material:

[0014] By weight, 100 parts TPU, 2 parts glyceryl monostearate, 0.8 parts talc or nano calcium carbonate, 0.1 parts antioxidant, and 8 parts high-gloss granules are mixed and added to a twin-screw extruder. The extrusion processing temperature is 200℃. After the material is extruded from the extruder, it is subjected to high-speed traction, water cooling, and pelletizing to prepare eTPU granules with a diameter of 1mm.

[0015] II. Foaming of eTPU granules:

[0016] The eTPU material molding equipment is used for foaming. First, nitrogen gas is introduced to make the pressure inside the autoclave reach 6MPa. Then, eTPU granules are injected through the injection port group. Next, carbon dioxide is introduced to make the pressure inside the autoclave reach 15MPa and the temperature inside the autoclave reach 150℃. After passing through gas pipe group one, gas pipe group two, and gas pipe group three, the carbon dioxide comes into full contact with the eTPU granules. After 20 minutes, the foamed eTPU granules are obtained through the discharge port group.

[0017] Finally, a new pearlescent eTPU material is also provided, which is manufactured using the eTPU material molding process described above.

[0018] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0019] 1. The eTPU material molding equipment of the present invention has an inner core plate assembly inside the autoclave. The inner core plate assembly is formed by folding a top plate assembly, a middle plate assembly, and a bottom plate assembly together to form a folded plate assembly. The top plate assembly, the middle plate assembly, and the bottom plate assembly all have a certain inclination angle. The top plate assembly is rotatably connected to the top cover plate of the autoclave. The top plate assembly and the middle plate assembly are rotatably connected by end mesh plate assembly one and end mesh plate assembly two. The middle plate assembly and the bottom plate assembly are rotatably connected by end mesh plate assembly three and end mesh plate assembly four. The bottom plate assembly and the bottom plate of the autoclave are rotatably connected by end mesh plate assembly five. The system features a dynamic connection, with air pipe group one, air pipe group two, and air pipe group three installed on the top plate group, middle plate group, and bottom plate group, respectively. The two ends of air pipe group one are respectively located on one side of the top sealing plate of the top plate group and one side of the end mesh plate group one. Air pipe group two is located on one side of the end mesh plate group two and one side of the end mesh plate group three. Air pipe group three is located on one side of the end mesh plate group four and one side of the end mesh plate group five. Each of air pipe group one, air pipe group two, and air pipe group three consists of several air pipe rods, which allows the introduced foaming gas to fully contact the eTPU granular material.

[0020] 2. End mesh plate group one, end mesh plate group three, and end mesh plate group five of the present invention are all composed of a slidable sliding horizontal plate and a rotatable rotating vertical plate. End mesh plate group two and end mesh plate group four are all composed of a rotatable sliding horizontal plate and a rotatable rotating vertical plate. Horizontal slots are formed on the sliding horizontal plate, and vertical slots are formed on the rotating vertical plate. These horizontal and vertical slots form a plurality of mesh holes, into which the plurality of air tube rods are inserted. During foaming, the sliding horizontal plate of end mesh plate group one, end mesh plate group three, and end mesh plate group five can slide from the lower end to the upper end. Furthermore, the folding plate group is divided into two interconnected first foaming plate groups and second foaming plate groups. When the sliding cross plate slides from the lower end to the upper end, some eTPU granules can be fed from the first foaming plate group to the second foaming plate group, or from the second foaming plate group to the first foaming plate group, and then the eTPU granules can be foamed again. With this setting, the inner core plate group can be set to be relatively short, and it is not necessary to set a relatively long vibration channel in the autoclave to achieve complete foaming. This can be achieved by setting the first foaming plate group and the second foaming plate group in parallel.

[0021] 3. The sliding cross plate of the end mesh plate group one, end mesh plate group three and end mesh plate group five of the present invention, when moving upward, will cause one end of the air tube rod to lose support and deform, thereby causing the air tube rods to be squeezed together, which can compress the remaining part of the eTPU granules at the rear end of the sliding cross plate. In this way, the foaming gas can come into good contact with this part of the material. The eTPU granules at the front end of the sliding cross plate are delivered to the material side hole position, and then reach the upper end of the adjacent first foaming plate group or second foaming plate group through the material side hole to continue to move from top to bottom for foaming. After the sliding cross plate returns to slide from top to bottom, one end of the air tube rod gradually forms support again, and the air tube rod moves, which can make the eTPU granules move again, and then enter the middle plate group or the bottom plate group through the lower opening.

[0022] 4. To accelerate the movement of eTPU granules, the first and second guide rod assemblies are repeatedly rotated in both forward and reverse directions, causing the top plate assembly, middle plate assembly, and bottom plate assembly to reciprocate up and down, ultimately creating a shaking motion. This accelerates the movement of the eTPU granules from top to bottom. Furthermore, the sliding action of the sliding plate prevents the granules from clogging the channels as their diameter increases during foaming. The sliding plate ensures smooth flow throughout the inner core plate assembly, further improving the foaming efficiency and resulting in a superior foaming effect. Ultimately, the newly formed pearlescent eTPU material has numerous uniform micropores, exhibiting excellent elasticity, resilience, and cushioning performance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the eTPU material molding equipment of this application. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the eTPU material molding equipment of this application. Figure 2 ;

[0025] Figure 3 Schematic diagram of the eTPU material molding equipment for removing the main body of the autoclave. Figure 3 ;

[0026] Figure 4 This is a schematic diagram of the base plate structure;

[0027] Figure 5 Illustration of the top cover plate Figure 1 ;

[0028] Figure 6 Illustration of the top cover plate Figure 2 ;

[0029] Figure 7 This is a schematic diagram of the inner core panel assembly structure;

[0030] Figure 8 Schematic diagram of the inner core panel assembly structure with the upper cover removed. Figure 1 ;

[0031] Figure 9 Schematic diagram of the inner core panel assembly structure with the upper cover removed. Figure 2 ;

[0032] Figure 10 Schematic diagram of the first foaming board assembly Figure 1 ;

[0033] Figure 11 Schematic diagram of the first foaming board assembly Figure 2 ;

[0034] Figure 12 Schematic diagram of the explosion of the first foamed board assembly. Figure 1 ;

[0035] Figure 13 for Figure 12 Enlarged view A;

[0036] Figure 14 for Figure 12 Enlarged view B;

[0037] Figure 15 for Figure 12 Enlarged view C;

[0038] Figure 16 Schematic diagram of the explosion of the first foamed board assembly. Figure 2 ;

[0039] Figure 17 This is a schematic diagram of the eTPU material molding equipment according to another embodiment.

[0040] The components include: 1. High-pressure autoclave; 2. Gas injection port; 3. Material injection port assembly; 4. Material discharge port assembly; 5. Autoclave body; 6. Top cover plate; 7. Bottom plate; 8. Inner core plate assembly; 9. Upper cover plate; 10. Folding plate assembly; 11. First foaming plate assembly; 12. Second foaming plate assembly; 13. Top plate assembly; 14. Intermediate plate assembly; 15. Bottom plate assembly; 16. First box body; 17. Gas pipe assembly one; 18. End mesh plate assembly one; 19. Screw drive assembly one; 20. Second box body; 21. End mesh plate assembly two; 22. End mesh plate assembly three; 23. Gas pipe assembly two; 24. Screw drive assembly two; 25. Third box body; 26. End mesh plate assembly four; 27. End mesh plate assembly five; 28. Gas pipe Group 3; 29. ​​Screw-driven Group 3; 30. First Layer Stacked Plate Group; 31. Second Layer Stacked Plate Group; 32. Third Layer Stacked Plate Group; 33. Fourth Layer Stacked Plate Group; 34. Fifth Layer Stacked Plate Group; 35. First Sliding Horizontal Plate; 36. First Rotating Vertical Plate; 37. Second Sliding Horizontal Plate; 38. Second Rotating Vertical Plate; 39. Third Sliding Horizontal Plate; 40. Third Rotating Vertical Plate; 41. Fourth Sliding Horizontal Plate; 42. Fourth Rotating Vertical Plate; 43. Fifth Sliding Horizontal Plate; 44. Fifth Rotating Vertical Plate; 45. Plate Body 1; 46. Screw Through Hole 1; 47. Horizontal Slot Hole; 48. Sliding Shaft; 49. Plate Body 2; 50. Spherical Groove 1; 51. Rotating Shaft 1; 52. Vertical... 53. Lower hinge shaft; 54. Main plate three; 55. Rotating shaft two; 56. Spherical groove two; 57. Vertical slot two; 58. Upper hinge shaft plate; 59. Base plate one; 60. First side plate; 61. Second side plate; 62. Top sealing plate; 63. Lower opening one; 64. Upper hinge plate; 65. Slide groove one; 66. Hinge hole one; 67. Material discharge side hole one; 68. Base plate two; 69. Third side plate; 70. Fourth side plate; 71. Lower opening two; 72. Slide groove two; 73. Hinge hole two; 74. Hinge hole three; 75. Material discharge side hole two; 76. Base plate three; 77. Fifth side plate; 78. Sixth side plate; 79. Lower opening three; 80. Hinge 81. Hinged Hole 5; 82. Slide Groove 3; 83. Material Discharge Side Hole 3; 84. Hinged Ball; 85. Lead Screw; 86. Through Hole; 87. Cover Body 1; 88. Receiving Hinge Shaft Plate; 89. First Discharge Receiving Groove; 90. Second Discharge Receiving Groove; 91. Cover Body 2; 92. First Feed Hopper; 93. Second Feed Hopper; 94. Air Injection Pipe; 95. Upper Receiving Rod Assembly; 96. First Feeding Port; 97. Second Feeding Port; 98. Third Feeding Port; 99. First Guide Rod Assembly; 100. Second Guide Rod Assembly; 101. Guide Protrusion 1; 102. Guide Protrusion 2; 103. Lifting Drive Rod; 104. Joint Ball; 105. Transverse Slide Groove. Detailed Implementation

[0041] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0042] Example 1

[0043] eTPU material molding equipment, such as Figures 1-16As shown, it includes a high-pressure reactor 1. An air injection port 2 and a material injection port group 3 are provided at the top of the high-pressure reactor 1, and a discharge port group 4 is provided at the bottom of the high-pressure reactor 1. eTPU granular material enters the interior of the high-pressure reactor 1 through the material injection port group 3, and foaming agent is injected into the interior of the high-pressure reactor 1 through the air injection port 2. After foaming, it is discharged through the discharge port group 4. The high-pressure reactor 1 includes a reactor body 5, a top cover plate 6, a bottom plate 7, and an inner core plate group 8. The top cover plate 6 is located at the top of the reactor body 5, and the air injection port 2 and the material injection port group 3 are located on the top cover plate 6. The bottom plate 7 is located at the bottom of the reactor body 5, and the discharge port group 4 is located on the bottom plate 7. The inner core plate group 8 is located inside the reactor body 5 and is situated between the top cover plate 6 and the bottom plate 7. Between the base plates 7, the inner core plate assembly 8 is composed of a folding plate assembly 10 and several upper cover plates 9. The folding plate assembly 10 includes a top plate assembly 13, a bottom plate assembly 15, and several intermediate plate assemblies 14. An upper cover plate 9 is provided on each of the top plate assembly 13, the bottom plate assembly 15, and the intermediate plate assembly 14. A first feeding port 96 is formed at the upper end of the top plate assembly 13, a second feeding port 97 is formed at the upper end of the intermediate plate assembly 14, and a third feeding port 98 is formed at the upper end of the bottom plate assembly 15. A top sealing plate 62 is provided at the upper end of the top plate assembly 13, and an end mesh plate assembly 18 is provided at the lower end. An end mesh plate assembly 21 is provided at the upper end of the intermediate plate assembly 14, and an end mesh plate assembly 32 is provided at the lower end. An end mesh plate is provided at the upper end of the bottom plate assembly 15. The fourth plate group 26 has an end mesh plate group 5 27 at its lower end. The lower end of the first end mesh plate group 18 is hinged to the upper end of the second end mesh plate group 21, and the lower end of the third end mesh plate group 22 is hinged to the upper end of the fourth end mesh plate group 26. The top sealing plate 62 is hinged to the top cover plate 6, and the lower end of the fifth end mesh plate group 5 27 is hinged to the bottom plate 7. A plurality of air pipe groups 17 are arranged between the top sealing plate 62 and the first end mesh plate group 18, a plurality of air pipe groups 23 are arranged between the second end mesh plate group 21 and the third end mesh plate group 22, and a plurality of air pipe groups 3 28 are arranged between the fourth end mesh plate group 26 and the fifth end mesh plate group 5 27. The lower end of the top plate group 13 has a lower opening 63, and the middle plate group 14... The lower end of the bottom plate assembly 15 has a second lower opening 71, and the lower end of the bottom plate assembly 15 has a third lower opening 79. The injection port assembly 3 is connected to the first feeding port 96, the first lower opening 63 is connected to the second feeding port 97, the second lower opening 71 is connected to the third feeding port 98, and the third lower opening 79 is connected to the discharge port assembly 4. The first air pipe assembly 17, the second air pipe assembly 23, and the third air pipe assembly 28 are all connected to the air injection port 2. After the eTPU granules are added through the injection port assembly 3, they can fully contact the foaming agent after passing through several air pipe assemblies 17, several air pipe assemblies 23, and several air pipe assemblies 28 to form eTPU granules containing the foaming agent, and then they are discharged through the discharge port assembly 4.

[0044] like Figures 8-9As shown, the folding board assembly 10 includes a first foamed board assembly 11 and a second foamed board assembly 12 along the vertical direction. The first foamed board assembly 11 and the second foamed board assembly 12 are arranged side by side and adjacent to each other. The end mesh assembly one 18 includes two first layer stacked board assemblies 30, the end mesh assembly two 21 includes two second layer stacked board assemblies 31, the end mesh assembly three 22 includes two third layer stacked board assemblies 32, the end mesh assembly four 26 includes two fourth layer stacked board assemblies 33, and the end mesh assembly five 27 includes two fifth layer stacked board assemblies 34. The first foamed board assembly 11 and the second foamed board assembly 12 are interconnected and are mirror-symmetrically arranged with respect to the surface where the first foamed board assembly 11 and the second foamed board assembly 12 are in contact. The structures of the first foamed board assembly 11 and the second foamed board assembly 12 are mirror-symmetrical. For ease of explanation, as shown... Figures 10-16 As shown, the structure of the first foam board group 11 and the second foam board group 12 will be described using the first foam board group as an example.

[0045] like Figures 10-16As shown, the top plate assembly 13 of the first foamed board assembly 11 includes a first box body 16, a screw drive assembly 19, an air pipe assembly 17, and a first laminated plate assembly 30. The first box body 16 includes a bottom plate 59, a first side plate 60, a second side plate 61, and a top sealing plate 62. The first side plate 60 and the second side plate 61 are disposed on both sides of the bottom plate 59 in the width direction, and the top sealing plate 62 is disposed on one side of the bottom plate 59 in the length direction. The first laminated plate assembly... 30 includes a first sliding horizontal plate 35 and a first rotating vertical plate 36. The first sliding horizontal plate 35 is provided with a plurality of horizontal slots 47, and the first rotating vertical plate 36 is provided with a plurality of vertical slots 52. When the first sliding horizontal plate 35 and the first rotating vertical plate 36 are in contact with each other, the plurality of horizontal slots 47 on the first sliding horizontal plate 35 and the plurality of vertical slots 52 on the first rotating vertical plate 36 form a through hole for the air tube assembly 17 to pass through. The other end of the air tube assembly 17 is fixedly installed. On the top sealing plate 62, the first rotating vertical plate 36 is rotatably disposed between the first side plate 60 and the second side plate 61. A spherical groove 50 is formed on the inner side of the first rotating vertical plate 36, and a lead screw through hole 46 is formed on the inner side of the first sliding horizontal plate 35. The lead screw drive assembly 19 includes a lead screw 85 and a hinge ball 84. One end of the lead screw 85 is rotatably disposed on the top sealing plate 62, and the other end is rotatably disposed in the hinge ball 84. The hinge ball 84 is rotatably disposed on... Inside the spherical groove 50, the lead screw 85 and the lead screw are threadedly connected through the hole 46. By rotating the lead screw 85, the first sliding cross plate 35 can be driven to slide along the first side plate 60 and the second side plate 61. A discharge side hole 67 is provided on the first side plate 60 near the top sealing plate 62. Through the discharge side hole 67, when the first sliding cross plate 35 slides from bottom to top, it can drive the eTPU granular material from the first foaming plate group 11 into the second foaming plate group 12, so as to achieve communication.

[0046] The intermediate plate group 14 of the first foaming plate group 11 includes a second box body 20, a second screw drive group 24, a second air pipe group 23, a second layered plate group 31, and a third layered plate group 32. The second box body 20 includes a second bottom plate 68, a third side plate 69, and a fourth side plate 70. The third side plate 69 and the fourth side plate 70 are disposed on both sides of the second bottom plate 68 in the width direction. The second layered plate group 31 is disposed on one side of the second bottom plate 68 in the length direction, and the third layered plate group 32 is disposed on the other side of the second bottom plate 68 in the length direction. The second layered plate group 31 includes a second sliding horizontal plate 37 and a second rotating vertical plate 38. The second sliding horizontal plate 37 is provided with a plurality of transverse slots 47, and the second rotating vertical plate 38 is provided with a plurality of vertical slots 57. When the second sliding horizontal plate 37 and the second rotating vertical plate 38 are in contact with each other, the plurality of transverse slots 47 on the second sliding horizontal plate 37 and the plurality of vertical slots 57 on the second rotating vertical plate 38 form a through hole 2 for one end of the tracheal tube assembly 23 to pass through. The third layer plate assembly 32 includes a third sliding horizontal plate 39 and a third rotating vertical plate 40. The third sliding horizontal plate 39 is provided with a plurality of transverse slots 47, and the third rotating vertical plate 40 is provided with a plurality of vertical slots 52. When the third sliding horizontal plate 39 and the third rotating vertical plate 40 are in contact with each other, The plurality of transverse slots 47 on the third sliding horizontal plate 39 and the plurality of vertical slots 52 on the third rotating vertical plate 40 form a through hole 3 for the other end of the second tracheal tube assembly 23 to pass through. The second rotating vertical plate 38 and the third rotating vertical plate 40 are both rotatably disposed between the third side plate 69 and the fourth side plate 70. A spherical groove 56 is provided on the inner side of the second rotating vertical plate 38, and a spherical groove 50 is provided on the inner side of the third rotating vertical plate 40. A lead screw passage hole 46 is provided on the inner side of the third sliding horizontal plate 39, and a lead screw passage hole 2 is provided on the inner side of the second sliding horizontal plate 37. The second lead screw drive assembly 24 includes a lead screw 85 and two hinged balls 84. Both ends of 5 are rotatably disposed in a hinge ball 84. One hinge ball 84 is rotatably disposed in the first spherical groove 50, and the other hinge ball 84 is rotatably disposed in the second spherical groove 56. The lead screw 85 and the lead screw are threadedly connected through the first hole 46. By rotating the lead screw 85, the third sliding cross plate 39 can be driven to slide along the third side plate 69 and the fourth side plate 70. A second discharge side hole 75 is provided on the third side plate 69 near the second layer stacked plate group 31. Through the second discharge side hole 75, when the third sliding cross plate 39 slides from bottom to top, it can drive the eTPU granular material from the first foaming plate group 11 into the second foaming plate group 12, so as to achieve communication.

[0047] The base plate assembly 15 of the first foaming board assembly 11 includes a third box body 25, a screw drive assembly 29, an air pipe assembly 28, a fourth layer stacked plate assembly 33, and a fifth layer stacked plate assembly 34. The third box body 25 includes a base plate 76, a fifth side plate 77, and a sixth side plate 78. The fifth side plate 77 and the sixth side plate 78 are disposed on both sides of the width direction of the base plate 76. The fourth layer stacked plate assembly 33 is disposed on one side of the length direction of the base plate 76, and the fifth layer stacked plate assembly 34 is disposed on the other side of the length direction of the base plate 76. The fourth layer stacked plate assembly 33 includes a fourth sliding horizontal plate 41 and a fourth rotating vertical plate 42. The sliding horizontal plate 41 is provided with a plurality of transverse slots 47, and the fourth rotating vertical plate 42 is provided with a plurality of vertical slots 57. When the fourth sliding horizontal plate 41 and the fourth rotating vertical plate 42 are in contact with each other, the plurality of transverse slots 47 on the fourth sliding horizontal plate 41 and the plurality of vertical slots 57 on the fourth rotating vertical plate 42 form a through hole 4 for one end of the tracheal tube assembly 28 to pass through. The fifth layer stacked plate assembly 34 includes a fifth sliding horizontal plate 43 and a fifth rotating vertical plate 44. The fifth sliding horizontal plate 43 is provided with a plurality of transverse slots 47, and the fifth rotating vertical plate 44 is provided with a plurality of vertical slots 52. When the fifth sliding horizontal plate 43 and the fifth rotating vertical plate 44 are in contact with each other, the fifth sliding horizontal plate 43 and the fifth rotating vertical plate 44 form a through hole 4 for one end of the tracheal tube assembly 28 to pass through. The plurality of transverse slots 47 on the fifth sliding horizontal plate 43 and the plurality of vertical slots 52 on the fifth rotating vertical plate 44 form a through hole 5 for the other end of the tracheal tube assembly 28 to pass through. The fourth rotating vertical plate 42 and the fifth rotating vertical plate 44 are rotatably disposed between the fifth side plate 77 and the sixth side plate 78. A spherical groove 56 is provided on the inner side of the fourth rotating vertical plate 42, and a spherical groove 50 is provided on the inner side of the fifth rotating vertical plate 44. A lead screw passage hole 46 is provided on the inner side of the fifth sliding horizontal plate 43, and a lead screw passage hole 2 is provided on the inner side of the fourth sliding horizontal plate 41. The lead screw drive assembly 29 includes a lead screw 85 and two hinged balls 84. Both ends are rotatably disposed within a hinged ball 84. One hinged ball 84 is rotatably disposed within the first spherical groove 50, and the other hinged ball 84 is rotatably disposed within the second spherical groove 56. The lead screw 85 and the lead screw are threadedly connected through the first hole 46. By rotating the lead screw 85, the fifth sliding cross plate 43 can be driven to slide along the fifth side plate 77 and the sixth side plate 78. A discharge side hole 3 83 is provided on the fifth side plate 77 near the fourth layer stack 33. Through the discharge side hole 3 83, when the fifth sliding cross plate 43 slides from bottom to top, it can drive the eTPU granular material from the first foaming plate group 11 into the second foaming plate group 12, thereby achieving communication.

[0048] Furthermore, the first sliding horizontal plate 35, the third sliding horizontal plate 39, and the fifth sliding horizontal plate 43 have the same structure, each including a plate body 45 and sliding shafts 48 disposed on both sides of the plate body 45. The transverse slots 47 are evenly disposed on the plate body 45, and the lead screw is disposed in the middle of the plate body 45 through a hole 46. A ball receiving groove is also provided at the end of the lead screw through the hole 46 near the hinge ball 84, so that the first sliding horizontal plate 35, the third sliding horizontal plate 39, and the fifth sliding horizontal plate 43 can respectively be tightly attached to the first rotating vertical plate 36, the third rotating vertical plate 39, and the fifth rotating vertical plate 43. The vertical plate 40 and the fifth rotating vertical plate 44, the second sliding horizontal plate 37 and the fourth sliding horizontal plate 41 have the same structure, each including a plate body 45 and shafts disposed on both sides of the plate body 45. The transverse slots 47 are evenly disposed on the plate body 45. The lead screw is disposed in the middle of the plate body 45 through a second hole. A ball receiving groove is also provided at the end of the lead screw through the second hole near the hinge ball 84, so that the second sliding horizontal plate 37 and the fourth sliding horizontal plate 41 can be tightly attached to the second rotating vertical plate 38 and the fourth rotating vertical plate 42, respectively. The lead screw through the second hole is a smooth hole. Preferably, the second sliding horizontal plate 37 and the second rotating vertical plate 38, and the fourth sliding horizontal plate 41 and the fourth rotating vertical plate 42 are connected in a detachable manner, such as by means of clips or bolts.

[0049] Furthermore, the first rotating vertical plate 36, the third rotating vertical plate 40, and the fifth rotating vertical plate 44 have the same structure, each including a plate body 2 49, a rotating shaft 1 51 disposed at both ends of the plate body 2 49, a spherical groove 1 50 disposed in the middle of the plate body 2 49, a lower hinge shaft 53 disposed at the lower end of the plate body 2 49, and a plurality of vertical slots 1 52 disposed on the plate body 2 49. The second rotating vertical plate 38 and the fourth rotating vertical plate 42 have the same structure, each including a plate body 3 54, a rotating shaft 2 55 disposed at both ends of the plate body 3 54, a spherical groove 2 56 disposed in the middle of the plate body 3 54, an upper hinge shaft plate 58 disposed at the upper end of the plate body 3 54, and a plurality of vertical slots 2 57 disposed on the plate body 3 54.

[0050] Furthermore, on the first side plate 60 and the second side plate 61, a hinge hole 66 is provided at the end away from the upper hinge plate 64. The rotation shaft 51 of the first rotating vertical plate 36 is rotatably disposed in the hinge hole 66. On the third side plate 69 and the fourth side plate 70, a hinge hole 73 is provided at the end near the unloading side hole 75. The rotation shaft 55 of the second rotating vertical plate 38 is rotatably disposed in the hinge hole 73. On the third side plate 69 and the fourth side plate 70, a hinge hole 73 is provided at the end away from the unloading side hole 75. The third rotating vertical plate 40 has a hinge hole 74. The first rotating shaft 51 of the third rotating vertical plate 40 is rotatably disposed in the hinge hole 74. The fifth side plate 77 and the sixth side plate 78 have a hinge hole 80 at one end near the material discharge side hole 83. The second rotating shaft 55 of the fourth rotating vertical plate 42 is rotatably disposed in the hinge hole 80. The fifth side plate 77 and the sixth side plate 78 have a hinge hole 81 at one end away from the material discharge side hole 83. The first rotating shaft 51 of the fifth rotating vertical plate 44 is rotatably disposed in the hinge hole 81.

[0051] Furthermore, a first sliding groove 65 is provided on the inner side of the first side plate 60 and the second side plate 61, and the sliding shaft 48 of the first sliding cross plate 35 is slidably disposed in the first sliding groove 65. A second sliding groove 72 is provided on the inner side of the third side plate 69 and the fourth side plate 70, and the sliding shaft 48 of the third sliding cross plate 39 is slidably disposed in the second sliding groove 72. A third sliding groove 82 is provided on the inner side of the fifth side plate 77 and the sixth side plate 78, and the sliding shaft 48 of the fifth sliding cross plate 43 is slidably disposed in the third sliding groove 82.

[0052] Furthermore, the hinge ball 84 has a through hole 86, and the lead screw 85 is engaged in the through hole 86. It also includes a rotary drive mechanism, such as a rotary motor, which is fixedly mounted on the second plate body 49 and / or the third plate body 54 (not shown in the figure, as this is common knowledge in the art and will not be described further here). The lead screw 85 is located at the output end of the rotary motor, which drives the lead screw 85 to rotate. Additionally, to allow the rotary motor to adapt to the rotation of the second plate body 49 and / or the third plate body 54, a specific fixing method could be to use two or more telescopic rods. Specifically, one end of the telescopic rod is hinged to the second plate body 49 and / or the third plate body 54, and the other end is hinged to the rotary motor. With this configuration, the telescopic rods can adapt to the rotation of the second plate body 49 and / or the third plate body 54 and extend accordingly, thus allowing the rotary motor to continuously provide power for the lead screw's rotation.

[0053] Furthermore, the second foamed board assembly 12 and the first foamed board assembly 11 are structurally mirror images of each other. The only difference between the second foamed board assembly 12 and the first foamed board assembly 11 is the location of the first discharge side hole 67, the second discharge side hole 75, and the third discharge side hole 83. Specifically, the first discharge side hole 67, the second discharge side hole 75, and the third discharge side hole 83 of the first foamed board assembly 11 are respectively located on the first side plate 60, the third side plate 69, and the fifth side plate 77, while the second discharge side hole 67, the second discharge side hole 75, and the third discharge side hole 83 of the second foamed board assembly 12 are respectively located on the second side plate 61, the fourth side plate 70, and the sixth side plate 78. Figure 8-9 As shown, when the first foam board group 11 and the second foam board group 12 are arranged side by side, the first discharge side hole 67, the second discharge side hole 75 and the third discharge side hole 83 of the first foam board group 11 overlap with the second discharge side hole 67, the second discharge side hole 75 and the third discharge side hole 83 of the second foam board group 12, and together form a connecting channel between the first foam board group 11 and the second foam board group 12.

[0054] like Figure 4 As shown, the base plate 7 includes a cover body 87. Two sets of receiving hinge plates 88 are arranged above the cover body 87. The lower hinge shaft 53 of the fifth rotating vertical plate 44 of the first foam board group 11 and the lower hinge shaft 53 of the fifth rotating vertical plate 44 of the second foam board group 12 are hinged to the receiving hinge plates 88. Additionally, a first discharge receiving groove 89 and a second discharge receiving groove 90 are arranged on one side of the receiving hinge plates 88, above the cover body 87. The first discharge receiving groove 89 and the second discharge receiving groove 90 are respectively connected to the lower opening 79 of the second foam board group 12 and the lower opening 79 of the first foam board group 11.

[0055] Preferably, such as Figures 5-6 As shown, the top cover plate 6 includes a cover body 91, an air injection pipe 94 is provided above the cover body 91, and a first feed hopper 92 and a second feed hopper 93 are provided below the cover body 91. An upper supporting rod assembly 95 is provided on one side of the first feed hopper 92 and the second feed hopper 93. An upper hinge plate 64 is provided at the upper end of the first side plate 60 and the second side plate 61. The upper supporting rod assembly 95 is hinged to the upper hinge plate 64.

[0056] Preferably, to ensure that the material can enter the inner core plate assembly, the first feed hopper 92 and the second feed hopper 93 are both connected to the first feeding port 96; to prevent most of the material from leaking out of the inner core plate assembly during transmission, the lower opening 63 of the top plate assembly 13 is connected to the second feeding port 97, and a connecting member 1 (not shown in the figure) is provided. The connecting member 1 can be a corrugated pipe, or it can be the first feed hopper 92 and the second feed hopper 93; the lower opening 71 of the middle plate assembly is connected to the third feeding port 98, and a connecting member 2 (not shown in the figure) is provided. The connecting member 2 can be a corrugated pipe, or it can be the first feed hopper 92 and the second feed hopper 93.

[0057] Preferably, the first tracheal assembly 17, the second tracheal assembly 23, and the third tracheal assembly 28 are each composed of several tracheal rods. Figures 8-12 The diagram does not show all the tracheal tubes, only a portion of them. The tracheal tubes are arranged in a mesh pattern consisting of horizontal perforations 47 and vertical perforations 52, forming mesh one, and a mesh pattern consisting of horizontal perforations 47 and vertical perforations 57, forming mesh two. Of course, the specific number of tracheal tubes can be selected according to actual needs, and they can be arranged in several rows and columns at intervals. The specific number and density can be adjusted according to usage requirements, which will not be elaborated further here. The tracheal tubes are as follows... Figures 12-13 As shown, each includes a hollow tube body, one end of which is sealed and the other end is open. Several air outlet holes are provided on the side wall of the tube body. The air injection pipe 94 is connected to the opening of the tube body through a connecting pipe and a pipe joint, so that the foaming agent can be introduced into the air pipe rod to foam the material in the inner core plate assembly 8.

[0058] Preferably, an angle adjustment device is provided on the first rotation shaft 51 and / or the second rotation shaft 55. The angle adjustment device may be a rotary motor or a rotary electric motor, and the rotation angle of the second plate body 49 and the third plate body 54 can be adjusted by the angle adjustment device.

[0059] Preferably, the width dimension one of the vertical slot 52 matches the diameter of the tube body, and the width dimension two of the horizontal slot 47 matches the diameter of the tube body. Preferably, the width dimension one, the width dimension two, and the diameter of the tube body are the same.

[0060] The example in the diagram shows several horizontal slots 47 on plate body one 45, several vertical slots 52 on plate body two 49, and several vertical slots 57 on plate body three 54. Correspondingly, several vertical slots can also be set on plate body one 45, and several horizontal slots can be set on both plate body two 49 and plate body three 54. If several vertical slots are set on plate body one 45, and several horizontal slots are set on both plate body two 49 and plate body three 54, then when the first sliding horizontal plate 35 and / or the third sliding horizontal plate 39 and / or the fifth sliding horizontal plate 43 slides upward, the tube body is still supported by the horizontal slots. When the first sliding horizontal plate 35 and / or the third sliding horizontal plate 39 and / or the fifth sliding horizontal plate 43 slides, the tube body will sway left and right to achieve full stirring and impregnation of the material to be foamed.

[0061] Additionally, the feeding method of the first feed hopper 92 and the second feed hopper 93 is intermittent feeding. The specific feeding structure can be the structure of the first feeding unit A and the second feeding unit A' in Patent Document 1 (CN115648527A). The first feeding unit A and the second feeding unit A' both include a feeding port, a feeding valve, a feeding buffer tank and a buffer tank outlet valve connected in sequence. This is prior art and will not be described in detail here. The discharging method of the first discharge receiving tank 89 and the second discharge receiving tank 90 is intermittent discharge. The specific discharge structure can also be the structure of the first discharge foaming unit B and the second discharge foaming unit B' in Patent Document 1 (CN115648527A). The first discharge foaming unit B and the second discharge foaming unit B' both include a discharge bin, a discharge bin outlet valve, a discharge buffer bin, a discharge buffer bin outlet valve and a discharge port pipe connected in sequence. This is prior art and will not be described in detail here. The feeding process of the first feed hopper 92 and the second feed hopper 93 is described below: The feeding valve of the first feeding unit A is opened, and the material enters the feeding buffer tank of the first feeding unit A from the feeding port of the first feeding unit A. After feeding is completed, the feeding valve of the first feeding unit A is closed, and then the outlet valve of the buffer tank of the first feeding unit A is opened. At the same time, the feeding valve of the second feeding unit A' is opened, and the material enters the feeding buffer tank of the second feeding unit A' from the feeding port of the second feeding unit A'. After feeding is completed, the outlet valve of the buffer tank of the first feeding unit A and the feeding valve of the buffer tank outlet valve are closed, and the outlet valve of the buffer tank of the second feeding unit A' and the feeding valve of the first feeding unit A are opened. This process is repeated to achieve intermittent feeding. Next, the discharge of the first discharge receiving tank 89 and the second discharge receiving tank 90 will be explained: Open the discharge hopper outlet valve of the first discharge foaming unit B to allow the foamed material to enter the discharge buffer hopper. After a period of time, close the discharge hopper outlet valve of the first discharge foaming unit B, and simultaneously open the discharge buffer hopper outlet valve of the first discharge foaming unit B and the discharge hopper outlet valve of the second discharge foaming unit B'. The material enters the discharge buffer hopper of the second discharge foaming unit B'. After a period of time, close the discharge buffer hopper outlet valve of the first discharge foaming unit B and the discharge hopper outlet valve of the second discharge foaming unit B', and simultaneously open the discharge buffer hopper outlet valve of the second discharge foaming unit B' and the discharge hopper outlet valve of the first discharge foaming unit B. This process is repeated to achieve uninterrupted intermittent discharge.

[0062] Preferably, in order to enable the material to enter the inlet assembly 3 better, a pushing structure can be set in the feeding buffer tank, such as a pushing plate or a spiral pushing rod structure, so that the material can enter the inlet assembly 3 better by external force.

[0063] Preferably, for materials falling out of the inner core plate assembly 8, a recovery port (not shown in the figure) is provided at the lower end of the bottom plate 7. A recovery switch valve is installed in the recovery port, and the material is recovered by opening or closing the switch valve. Preferably, a recovery pipe can be installed at the lower end of the recovery port, and the end of the recovery pipe can be connected to the feeding buffer tank of the first feeding unit A and / or the second feeding unit A'. A suction pump is installed on the recovery pipe, and a pipe opening and closing valve is installed at the end of the recovery pipe. The recovery material is automatically added to the feeding buffer tank through the switch valve, the pipe opening and closing valve, and the suction pump. For example, when the feeding buffer tank is being discharged (i.e., the feeding valve is closed and the buffer tank outlet valve is open), both the switch valve and the pipe opening and closing valve can be opened, and the suction pump can be activated, so that the material in the recovery port can be added back into the feeding port assembly 3.

[0064] Preferably, the upper end of the tracheal tube of the first tracheal tube assembly 17 is fixedly disposed on the inner side of the top sealing plate 62, the upper end of the tracheal tube of the second tracheal tube assembly 23 is fixedly disposed on the outer side of the second end mesh plate assembly 21, and the upper end of the third tracheal tube assembly 28 is fixedly disposed on the outer side of the fourth end mesh plate assembly 26.

[0065] Furthermore, several fixing grooves are provided on the inner side of the top sealing plate 62. The upper end of the air tube rod of the first air tube group 17 is inserted into the fixing groove for fixation. Two clips are provided on the upper end of each air tube rod of the second air tube group 23. One clip is close to the outer side of the second rotating vertical plate 38, and the other clip is close to the inner side of the second sliding horizontal plate 37, so that the air tube rod of the second air tube group 23 is fixedly set on the outer side of the end mesh plate group 21. Two clips are provided on the upper end of each air tube rod of the third air tube group 28. One clip is close to the outer side of the fourth rotating vertical plate 42, and the other clip is close to the inner side of the fourth sliding horizontal plate 41, so that the air tube rod of the third air tube group 28 is fixedly set on the outer side of the end mesh plate group 26. Preferably, in order to accommodate the rotation of the fourth sliding horizontal plate 41 around the rotation axis 55 of the fourth rotating vertical plate 42, and the rotation of the second sliding horizontal plate 37 around the rotation axis 55 of the second rotating vertical plate 38, guide arc grooves (not shown in the figure) are provided in the third side plate 69, the fourth side plate 70, the fifth side plate 77 and the sixth side plate 78 for the axis sliding on both sides of the plate body 45.

[0066] Preferably, an additional gas injection port 2 is provided at the top of the autoclave 1. This gas injection port 2 is fluidly connected to carbon dioxide, and the other gas injection port is fluidly connected to nitrogen. Each of the gas pipe groups 17, 23, and 28 has a portion of its pipe rod connected to the first gas injection port 2, and another portion connected to the other gas injection port. Alternatively, there can be only one gas injection port 2, initially injecting nitrogen, and then injecting carbon dioxide later.

[0067] Example 2

[0068] like Figure 17 As shown, the eTPU material molding equipment in Example 2 differs from that in Example 1 only in the specific inner core board assembly 8. Figure 17 The example is a schematic diagram of an eTPU material molding equipment with the main body of the reactor removed. Specifically:

[0069] The inner core plate assembly 8 also includes a first guide rod assembly 99 and a second guide rod assembly 100, which respectively adjust the rotation angles of the top plate assembly 13, the middle plate assembly 14 and the bottom plate assembly 15 of the inner core plate assembly 8.

[0070] The first guide rod assembly 99 and the second guide rod assembly 100 have the same structure, both including a lifting drive rod 103 and a joint ball 104. A guide protrusion 101 is provided at the end of the upper cover plate 9 on the top plate assembly 13, and a guide protrusion 202 is provided at the end of the upper cover plate 9 on the middle plate assembly 14. The joint ball 104 is rotatably disposed within the guide protrusion 101 and the guide protrusion 202, and the rotation axis of the joint ball 104 is parallel to the rotation axis of the first rotation shaft 51 and / or the second rotation shaft 55. An internal thread is provided within the joint ball 104, and an external thread is provided on the outside of the lifting drive rod 103. 3. The ball joint 104 passes through the joint ball, so that the external thread and the internal thread engage. The upper and lower ends of the lifting drive rod 103 are slidably disposed on the lower end of the top cover plate 6 and the upper end of the bottom plate 7, respectively. A drive motor is provided at the upper and / or lower ends of the lifting drive rod 103. The drive motor can only slide horizontally relative to the top cover plate 6 and / or the bottom plate 7. By rotating the drive motor, the lifting drive rod 103 is driven to rotate, thereby causing the joint ball 104 to slide up and down relative to the lifting drive rod 103, driving the rotation of the top plate assembly 13, the intermediate plate assembly 14 and the bottom plate assembly 15, thereby realizing the adjustment of the rotation angle.

[0071] Preferably, a transverse sliding groove 105 is provided at the upper end of the base plate 7 and the lower end of the top cover plate 6, and the upper and lower ends of the lifting drive rod 103 are respectively slidably disposed in the transverse sliding groove 105.

[0072] Preferably, the intermediate plate group 14 can be set to two or more, which can increase the length of the folding plate group, enabling more materials to be foamed and making the foaming more thorough.

[0073] Preferably, a raised strip structure is provided on the joint ball 104, and a corresponding sliding groove structure is provided inside the guide protrusion 101 and the guide protrusion 102. By sliding the raised strip in the sliding groove, the rotation axis of the joint ball 104 is made parallel to the rotation axis of the rotation shaft 1 51 and / or the rotation axis 2 55.

[0074] Example 3

[0075] It also includes an eTPU material molding process, comprising the following steps:

[0076] I. Preparation of eTPU particulate material:

[0077] By weight, 90-100 parts TPU, 1-2 parts lubricant glyceryl monostearate, 0.8-1 parts nucleating agent talc or nano calcium carbonate, 0.1-0.5 parts antioxidant, and 8-10 parts high-gloss colored granules are mixed and added to a twin-screw extruder. The extrusion processing temperature is 200-220℃. After the material exits the extruder nozzle, it is subjected to high-speed traction, water cooling, and pelletizing to prepare eTPU granules with a diameter of 1-2mm.

[0078] II. Foaming of eTPU granules:

[0079] Nitrogen diffuses quickly, which is conducive to rapid nucleation and the formation of a finer pore structure. Carbon dioxide diffuses more slowly but has high solubility, which allows it to dissolve into the polymer more efficiently and promotes full swelling. Nitrogen is first introduced to make the pressure inside the autoclave 1 reach 6-8 MPa. Then, eTPU granules are injected through the injection port group 3. Carbon dioxide is then introduced to make the pressure inside the autoclave 1 reach about 15 MPa and the temperature inside the autoclave about 150℃. After passing through the gas pipe group 17, gas pipe group 23 and gas pipe group 28, the carbon dioxide comes into full contact with the eTPU granules, which allows the carbon dioxide to penetrate into the interior of the eTPU granules relatively quickly, shortening the foaming time of the eTPU granules. After a certain time (e.g., 20-25 minutes), the foamed eTPU granules are obtained through the discharge port group 4.

[0080] Preferably, the high-gloss particles can be selected as colored metallic pearlescent powder, which can be a mixture of mica powder and titanium dioxide.

[0081] Preferably, the foaming of eTPU granules can be accelerated by controlling the movement of the first guide rod group 99 and the second guide rod group 100. Specifically, the first guide rod group 99 and / or the second guide rod group 100 can be reciprocated to rotate, causing the folded plate group 10 to vibrate. This, in conjunction with the air tube group 17, the air tube group 23 and the air tube group 28, allows the eTPU granules to come into contact with carbon dioxide more evenly and quickly.

[0082] Example 4

[0083] It also includes a new pearlescent eTPU material, which is manufactured using the above-described eTPU material molding process.

[0084] To facilitate a clear understanding of the working principle of the eTPU material molding equipment of the present invention by those skilled in the art, the following description is provided in conjunction with Embodiment 2: The tilt angles of the top plate group 13, middle plate group 14, and bottom plate group 15 of the inner core plate group 8 are adjusted by the first guide rod group 99 and the second guide rod group 100. After adjustment, eTPU granular material is added into the inner core plate group 8 through the first feed hopper 92 and the second feed hopper 93. Supercritical carbon dioxide and / or supercritical nitrogen are injected through the gas injection pipe 94 and / or another gas injection pipe, first reaching a certain pressure (e.g., 6-8 MPa). Then, the temperature inside the autoclave is raised to a certain value (e.g., 150°C). The eTPU granular material passes through the top plate group 13, middle plate group 14, and bottom plate group 15 of the inner core plate group 8, and then supercritical carbon dioxide is injected through the gas injection pipe 94, causing… The high-pressure reactor 1 has an even higher pressure (e.g., 15 MPa), which allows supercritical carbon dioxide to be slowly introduced. This ensures that supercritical carbon dioxide is introduced into the eTPU granules throughout the foaming process. The pressure inside the high-pressure reactor 1 is around 15 MPa. Because the gas pipe groups 17, 23, and 28 of the top plate group 13, the middle plate group 14, and the bottom plate group 15 can make good contact with the eTPU granules, carbon dioxide can quickly dissolve onto the surface of the granules, thereby accelerating the absorption rate of carbon dioxide. In order to accelerate the movement speed of the eTPU granules, the first guide rod group 99 and the second guide rod group 100 are repeatedly operated, which causes the top plate group 13, the middle plate group 14, and the bottom plate group 15 to vibrate, thereby accelerating the movement speed of the eTPU granules.The foaming processes of the top plate group 13, the middle plate group 14, and the bottom plate group 15 are the same. Here, we will use the foaming process within the top plate group 13 as an example: As the eTPU granules move from the top to the bottom of the top plate group 13, they come into contact with several gas pipe rods of the gas pipe group 17, allowing for good contact with carbon dioxide and / or nitrogen, thus initiating foaming. Finally, the granules fall into the middle plate group 14 through the lower opening 63. To improve the foaming effect within the top plate group 13, the screw 85 driving the first foaming plate group 11 rotates, causing the first sliding cross plate 35 to slide from the bottom to the top. During this sliding process, some eTPU granules are pushed upwards, ensuring sufficient contact with the gas pipe rods, and then fed into the discharge side hole 67, thus further... The eTPU granules are fed into the top plate group 13 of the second foaming plate group 12, where they undergo another round of foaming. Finally, the screw 85 in the drive top plate group 13 of the first foaming plate group 11 rotates in the reverse direction. Since the lower ends of several air pipes in the air pipe group 17 are positioned between the horizontal slots 47 and the vertical slots 52, when the first sliding plate 35 slides upward, the unsupported air pipes squeeze against each other, clamping the remaining eTPU granules behind the first sliding plate 35 between them, thus effectively foaming their surface. After the first sliding plate 35 slides back in the reverse direction, the air pipes gradually regain their support structure, causing them to move again, which in turn stirs the remaining eTPU granules to a certain extent, further improving the foaming effect. The foamed eTPU granules are discharged from the first discharge receiving trough 89 and the second discharge receiving trough 90.

Claims

1. An eTPU material molding equipment, comprising an autoclave (1), wherein an air injection port (2) and a material injection port assembly (3) are provided at the top of the autoclave (1), and a discharge port assembly (4) is provided at the bottom of the autoclave (1). The autoclave (1) comprises an autoclave body (5), a top cover plate (6), a bottom plate (7), and an inner core plate assembly (8). The top cover plate (6) is located at the top of the autoclave body (5), the air injection port (2) and the material injection port assembly (3) are located on the top cover plate (6), the bottom plate (7) is located at the bottom of the autoclave body (5), the discharge port assembly (4) is located on the bottom plate (7), and the inner core plate assembly (8) is located inside the autoclave body (5) and between the top cover plate (6) and the bottom plate (7). The inner core panel assembly (8) is composed of several folding panel assemblies (10) and several upper cover plates (9). The folding panel assembly (10) includes a top panel assembly (13), a bottom panel assembly (15), and several intermediate panel assemblies (14). An upper cover plate (9) is provided on each of the top panel assembly (13), the bottom panel assembly (15), and the intermediate panel assembly (14). A first feeding port (96) is formed at the upper end of the top panel assembly (13), a second feeding port (97) is formed at the upper end of the intermediate panel assembly (14), and a third feeding port (98) is formed at the upper end of the bottom panel assembly (15). A top sealing plate (62) is provided at the upper end of the top panel assembly (13), and an end cap is provided at the lower end. The upper end of the intermediate plate group (14) is provided with end plate group 2 (21) and the lower end is provided with end plate group 3 (22). The upper end of the bottom plate group (15) is provided with end plate group 4 (26) and the lower end is provided with end plate group 5 (27). The lower end of end plate group 1 (18) is hinged to the upper end of end plate group 2 (21), the lower end of end plate group 3 (22) is hinged to the upper end of end plate group 4 (26), the top sealing plate (62) is hinged to the top cover plate (6), and the lower end of end plate group 5 (27) is hinged to the bottom plate (7). A plurality of air pipe groups 1 (17) are provided between (62) and end mesh plate group 1 (18), a plurality of air pipe groups 2 (23) are provided between end mesh plate group 2 (21) and end mesh plate group 3 (22), a plurality of air pipe groups 3 (28) are provided between end mesh plate group 4 (26) and end mesh plate group 5 (27), the lower end of the top plate group (13) is provided with a lower opening 1 (63), the lower end of the middle plate group (14) is provided with a lower opening 2 (71), the lower end of the bottom plate group (15) is provided with a lower opening 3 (79), the injection port group (3) is connected to the first feeding port (96), the lower Opening 1 (63) is connected to the second feeding port (97), lower opening 2 (71) is connected to the third feeding port (98), lower opening 3 (79) is connected to the discharge port group (4), and air pipe group 1 (17), air pipe group 2 (23) and air pipe group 3 (28) are all connected to the air injection port (2). After the eTPU granules are added by the injection port group (3), they can fully contact the foaming agent after passing through several air pipe groups 1 (17), several air pipe groups 2 (23) and several air pipe groups 3 (28), forming eTPU granules containing foaming agent, and then being discharged by the discharge port group (4).

2. The eTPU material molding equipment as described in claim 1, characterized in that: The folding panel assembly (10) includes a first foamed panel assembly (11) and a second foamed panel assembly (12) in the vertical direction. The first foamed panel assembly (11) and the second foamed panel assembly (12) are arranged side by side and close to each other. The first end mesh panel assembly (18) includes two first layer stacked panel assemblies (30). The second end mesh panel assembly (21) includes two second layer stacked panel assemblies (31). The third end mesh panel assembly (22) includes two third layer stacked panel assemblies (32). The fourth end mesh panel assembly (26) includes... The end mesh plate group (27) includes two fourth layer stacked plate groups (33) and two fifth layer stacked plate groups (34). The first foamed plate group (11) and the second foamed plate group (12) are interconnected. The first foamed plate group (11) and the second foamed plate group (12) are mirror-symmetrically arranged with the surface of the first foamed plate group (11) and the second foamed plate group (12) in contact as the symmetry plane. The structures of the first foamed plate group (11) and the second foamed plate group (12) are mirror-symmetrically arranged.

3. The eTPU material molding equipment as described in claim 2, characterized in that: The top plate assembly (13) of the first foamed board assembly (11) includes a first box body (16), a screw drive assembly (19), the air pipe assembly (17), and a first laminated plate assembly (30). The first box body (16) includes a bottom plate (59), a first side plate (60), a second side plate (61), and a top sealing plate (62). The first side plate (60) and the second side plate (61) are disposed on both sides of the bottom plate (59) in the width direction, and the top sealing plate (62) is disposed on one side of the bottom plate (59) in the length direction. The first laminated plate assembly (30) includes a first box body (16), a screw drive assembly (19), the air pipe assembly (17), and a first laminated plate assembly (30). A sliding horizontal plate (35) and a first rotating vertical plate (36) are provided. The first sliding horizontal plate (35) is provided with a plurality of horizontal slots (47), and the first rotating vertical plate (36) is provided with a plurality of vertical slots (52). When the first sliding horizontal plate (35) and the first rotating vertical plate (36) are in contact with each other, the plurality of horizontal slots (47) on the first sliding horizontal plate (35) and the plurality of vertical slots (52) on the first rotating vertical plate (36) form a through hole for the air tube assembly (17) to pass through. The other end of the air tube assembly (17) is fixedly provided on the top sealing plate (62).

4. The eTPU material molding equipment as described in claim 3, characterized in that: The first rotating vertical plate (36) is rotatably disposed between the first side plate (60) and the second side plate (61). A spherical groove (50) is provided on the inner side of the first rotating vertical plate (36), and a lead screw through hole (46) is provided on the inner side of the first sliding horizontal plate (35). The lead screw drive assembly (19) includes a lead screw (85) and a hinge ball (84). One end of the lead screw (85) is rotatably disposed on the top sealing plate (62), and the other end of the lead screw (85) is rotatably disposed in the hinge ball (84). The hinge ball (84) is rotatably disposed on the top sealing plate (62). Inside the spherical groove (50), the lead screw (85) and the lead screw are threadedly connected through the hole (46). By rotating the lead screw (85), the first sliding cross plate (35) can be driven to slide along the first side plate (60) and the second side plate (61). A discharge side hole (67) is provided on the first side plate (60) near the top sealing plate (62). Through the discharge side hole (67), the first sliding cross plate (35) can be driven to flow from the first foaming plate group (11) into the second foaming plate group (12) when it slides from bottom to top, so as to achieve communication.

5. The eTPU material molding equipment as described in claim 4, characterized in that: The intermediate plate group (14) of the first foaming plate group (11) includes a second box body (20), a second screw drive group (24), a second air pipe group (23), a second layered plate group (31), and a third layered plate group (32). The second box body (20) includes a second bottom plate (68), a third side plate (69), and a fourth side plate (70). The third side plate (69) and the fourth side plate (70) are located on both sides of the width direction of the second bottom plate (68). The second layered plate group (31) is located on one side of the length direction of the second bottom plate (68), and the third layered plate group (32) is located on the other side of the length direction of the second bottom plate (68). The second layered plate group (31) includes a second sliding horizontal plate (37) and a second rotating vertical plate (38). The second sliding horizontal plate (37) is also provided with a plurality of transverse slots (47), and the second rotating vertical plate (38) is provided with a plurality of transverse slots (47). The second sliding horizontal plate (37) and the second rotating vertical plate (38) are provided with several vertical slots (57). When they are in contact with each other, the several horizontal slots (47) on the second sliding horizontal plate (37) and the several vertical slots (57) on the second rotating vertical plate (38) form a through hole for one end of the second tracheal tube assembly (23) to pass through. The third stacked plate assembly (32) includes a third sliding horizontal plate (39) and a third rotating vertical plate (40). The sliding horizontal plate (39) is also provided with several horizontal slots (47), and the third rotating vertical plate (40) is also provided with several vertical slots (52). When the third sliding horizontal plate (39) and the third rotating vertical plate (40) are in contact with each other, the several horizontal slots (47) on the third sliding horizontal plate (39) and the several vertical slots (52) on the third rotating vertical plate (40) form a through hole three for the other end of the second air tube assembly (23) to pass through.

6. The eTPU material molding equipment as described in claim 5, characterized in that: The second rotating vertical plate (38) and the third rotating vertical plate (40) are rotatably disposed between the third side plate (69) and the fourth side plate (70). A spherical groove two (56) is provided on the inner side of the second rotating vertical plate (38), and a spherical groove one (50) is provided on the inner side of the third rotating vertical plate (40). A screw rod through hole one (46) is provided on the inner side of the third sliding horizontal plate (39), and a screw rod through hole two is provided on the inner side of the second sliding horizontal plate (37). The screw rod drive assembly two (24) includes a screw rod (85) and two hinged balls (84). The two ends of the screw rod (85) are respectively rotatably disposed in a hinged ball (84). The hinged ball (84) is rotatably disposed in a hinged ball (84). The first spherical groove (50) is placed inside the second spherical groove (56), and the other hinged ball (84) is rotatably disposed inside the second spherical groove (56). The lead screw (85) and the lead screw are threadedly connected through the first hole (46). By rotating the lead screw (85), the third sliding cross plate (39) can be driven to slide along the third side plate (69) and the fourth side plate (70). The second discharge side hole (75) is provided on the third side plate (69) near the second layer stack (31). Through the second discharge side hole (75), the third sliding cross plate (39) can be driven to flow from the first foaming plate group (11) into the second foaming plate group (12) when sliding from bottom to top, so as to achieve communication.

7. The eTPU material molding equipment as described in claim 6, characterized in that: The first foaming board assembly (11) includes a base plate assembly (15) comprising a third box body (25), a screw drive assembly (29), an air pipe assembly (28), a fourth layer stacked plate assembly (33), and a fifth layer stacked plate assembly (34). The third box body (25) includes a base plate (76), a fifth side plate (77), and a sixth side plate (78). The fifth side plate (77) and the sixth side plate (78) are located on both sides of the width direction of the base plate (76). The fourth layer stacked plate assembly (33) is located on one side of the length direction of the base plate (76), and the fifth layer stacked plate assembly (34) is located on the other side of the length direction of the base plate (76). The fourth layer stacked plate assembly (33) includes a fourth sliding horizontal plate (41) and a fourth rotating vertical plate (42). The fourth sliding horizontal plate (41) is also provided with several horizontal slots (47), and the fourth rotating vertical plate (42) is also provided with several horizontal slots (47). The fourth sliding horizontal plate (41) and the fourth rotating vertical plate (42) are fitted together with several vertical slots (57). When they are in contact, the several horizontal slots (47) on the fourth sliding horizontal plate (41) and the several vertical slots (57) on the fourth rotating vertical plate (42) form a through hole (4) through which one end of the tracheal tube assembly (28) passes. The fifth layer stacked plate assembly (34) includes a fifth sliding horizontal plate (43) and a fifth rotating vertical plate (44). The sliding horizontal plate (43) is also provided with a number of horizontal slots (47), and the fifth rotating vertical plate (44) is also provided with a number of vertical slots (52). When the fifth sliding horizontal plate (43) and the fifth rotating vertical plate (44) are in contact with each other, the number of horizontal slots (47) on the fifth sliding horizontal plate (43) and the number of vertical slots (52) on the fifth rotating vertical plate (44) form a through hole five for the other end of the air tube assembly three (28) to pass through.The fourth rotating vertical plate (42) and the fifth rotating vertical plate (44) are rotatably disposed between the fifth side plate (77) and the sixth side plate (78). A spherical groove two (56) is provided on the inner side of the fourth rotating vertical plate (42), and a spherical groove one (50) is provided on the inner side of the fifth rotating vertical plate (44). A lead screw passage hole one (46) is provided on the inner side of the fifth sliding horizontal plate (43), and a lead screw passage hole two is provided on the inner side of the fourth sliding horizontal plate (41). The lead screw drive assembly three (29) includes a lead screw (85) and two hinged balls (84). The two ends of the lead screw (85) are rotatably disposed within a hinged ball (84). The hinged ball (84) is rotatably disposed within the hinged ball (84). The first spherical groove (50) is placed inside the second spherical groove (56), and the other hinged ball (84) is rotatably disposed inside the third spherical groove (56). The lead screw (85) and the lead screw are threadedly connected through the first hole (46). By rotating the lead screw (85), the fifth sliding cross plate (43) can be driven to slide along the fifth side plate (77) and the sixth side plate (78). A discharge side hole (83) is provided on the fifth side plate (77) near the fourth layer stack (33). Through the discharge side hole (83), the fifth sliding cross plate (43) can be driven to flow from the first foaming plate group (11) into the second foaming plate group (12) when sliding from bottom to top, so as to achieve communication.

8. The eTPU material molding equipment as described in claim 7, characterized in that: The inner core plate assembly (8) further includes a first guide rod assembly (99) and a second guide rod assembly (100). The first guide rod assembly (99) and the second guide rod assembly (100) respectively adjust the rotation angles of the top plate assembly (13), the middle plate assembly (14), and the bottom plate assembly (15) of the inner core plate assembly (8). The first rotating vertical plate, the third rotating vertical plate, and the fifth rotating vertical plate are all provided with a first rotating shaft (51), and the second rotating vertical plate and the fourth rotating vertical plate are all provided with a second rotating shaft (55). The first guide rod group (99) and the second guide rod group (100) have the same structure, both including a lifting drive rod (103) and a joint ball (104). A guide protrusion one (101) is provided at the end of the upper cover plate (9) on the top plate group (13), and a guide protrusion two (102) is provided at the end of the upper cover plate (9) on the middle plate group (14). The joint ball (104) is rotatably disposed within the guide protrusion one (101) and the guide protrusion two (102), and the joint... The rotation axis of the ball (104) is parallel to the rotation axis of the first rotation shaft (51) and / or the second rotation shaft (55). An internal thread is provided inside the ball (104), and an external thread is provided on the outside of the lifting drive rod (103). The lifting drive rod (103) passes through the ball (104), so that the external thread and the internal thread mesh. The upper end and the lower end of the lifting drive rod (103) are respectively slidably disposed on the lower end of the top cover plate (6) and the upper end of the bottom plate (7). At the end, a drive motor is provided at the upper end and / or lower end of the lifting drive rod (103). The drive motor can only slide horizontally relative to the top cover plate (6) and / or the bottom plate (7). By rotating the drive motor, the lifting drive rod (103) is driven to rotate, thereby causing the joint ball (104) to slide up and down relative to the lifting drive rod (103), driving the rotation of the top plate group (13), the middle plate group (14) and the bottom plate group (15), thereby realizing the adjustment of the rotation angle.

9. The eTPU material molding process, characterized in that: Includes the following steps: I. Preparation of eTPU particulate material: By weight, 100 parts TPU, 2 parts glyceryl monostearate, 0.8 parts talc or nano calcium carbonate, 0.1 parts antioxidant, and 8 parts high-gloss granules are mixed and added to a twin-screw extruder. The extrusion processing temperature is 200℃. After the material is extruded from the extruder, it is subjected to high-speed traction, water cooling, and pelletizing to prepare eTPU granules with a diameter of 1mm. II. Foaming of eTPU granules: The eTPU material molding equipment described in any one of claims 1-8 is used for foaming. First, nitrogen gas is introduced to make the pressure in the high pressure vessel (1) reach 6 MPa. Then, the eTPU granules are injected through the injection port group (3). Then, carbon dioxide is introduced to make the pressure in the high pressure vessel (1) reach 15 MPa. The temperature in the high pressure vessel is 150°C. After passing through the first gas pipe group (17), the second gas pipe group (23), and the third gas pipe group (28), the carbon dioxide comes into full contact with the eTPU granules. After 20 minutes, the foamed eTPU granules are obtained through the discharge port group (4).

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