An orthopedic device
Patent Information
- Application Number
- CN202522119370.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-09-30
AI Technical Summary
[0016]According to the shaping device provided in this embodiment of the utility model, the pressure plate is driven to move closer to the base by the first driving component, so that the pressure plate can apply pressure towards the base to the flange edge of the charging base housing, thereby driving the charging base housing into the first contouring cavity. Under the pressure of the pressure plate, the unhardened charging base housing will contact the inner wall of the first contouring cavity. The cooling component cools the charging base housing, so that the charging base housing hardens, thereby completing the shaping of the charging base housing. Compared with the prior art, the pressure is automatically applied to the charging base housing, the pressure is easy to control, and the shaping quality is improved.
Smart Images

Figure CN224751884U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of vehicle charging seat shaping devices, and in particular to a shaping device. Background Technology
[0002] During the production process of vehicle charging stations, the injection-molded charging station housing needs to undergo shaping operations.
[0003] An existing shaping device includes a worktable, a base, and a pressure plate. The base is mounted on the worktable and has a mounting groove for inserting a charging socket housing. The shape of the mounting groove matches the shape of the finished charging socket housing. After the charging socket housing to be hardened is inserted into the mounting groove, the flange edge of the charging socket housing is positioned on the top surface of the base. The pressure plate is then manually placed on the charging socket housing to apply downward pressure to the flange edge of the charging socket housing, causing the charging socket housing to be hardened to contact the inner wall of the mounting groove. After applying pressure for a period of time, the pressure plate is removed to allow the charging socket housing to harden and cool, thus achieving the shaping of the charging socket housing.
[0004] However, the pressure applied by the existing shaping device when manually pressing down the pressure plate is unstable, which affects the shaping quality. Summary of the Invention
[0005] This utility model provides a shaping device to solve the problem that the pressure applied when manually pressing down the pressure plate is unstable in existing shaping devices, which affects the shaping quality.
[0006] To address the aforementioned problems, this utility model provides a shaping device, comprising a frame, a base, a pressure plate, a first driving assembly, and a cooling assembly. The base is connected to the frame, and the base has a first contouring cavity for the charging base housing to be inserted into. The pressure plate is connected to the first driving assembly, and the first driving assembly can drive the pressure plate assembly to move towards the base, so that the pressure plate can apply pressure toward the base to the flange edge of the charging base housing. The cooling assembly is used to cool the charging dock housing.
[0007] Optionally, the first contoured cavity is provided with a DC boss and an AC boss. The DC boss is provided with a DC socket for the DC plug of the charging base housing to be inserted into, and the AC boss is provided with an AC socket for the AC plug of the charging base housing to be inserted into. The gap between the DC boss and the AC boss and the inner wall of the first contoured cavity is used to accommodate the charging base housing.
[0008] Optionally, the pressure plate has a second contoured cavity on one side facing the base, and the second contoured cavity is for the charging base housing to be installed.
[0009] Optionally, the first drive assembly includes a first drive mechanism and a transition member, the transition member being connected to the first drive mechanism and the pressure plate, and the transition member having a heat dissipation cavity inside; The cooling assembly includes a first cooling element installed inside the heat dissipation cavity. The inner wall of the second contoured cavity is provided with heat dissipation holes communicating with the heat dissipation cavity. The first cooling element can blow air into the second contoured cavity through the heat dissipation holes.
[0010] Optionally, the first cooling component is a first fan, and the transition component is provided with an air inlet that communicates with the heat dissipation cavity.
[0011] Optionally, there are two first fans and two heat dissipation holes, with one first fan and one heat dissipation hole corresponding to each other; Of the two heat dissipation holes, one corresponds to the DC boss and the other corresponds to the AC boss.
[0012] Optionally, the pressure plate has an air outlet groove on one side facing the base that communicates with the second contour cavity.
[0013] Optionally, the cooling assembly further includes a second fan that blows air toward the base.
[0014] Optionally, the base includes a base plate and a lifting plate. The base plate is connected to the frame. The lifting plate is located on the side of the base plate facing the pressure plate. The lifting plate is provided with a receiving hole. The receiving hole and the base plate form the first contour cavity. The DC boss and the AC boss are disposed on the base plate. The shaping device also includes a lifting assembly that can drive the lifting plate to move closer to the pressure plate, so that the charging base housing is disengaged from the DC boss and the AC boss.
[0015] Optionally, the lifting assembly includes a lifting drive mechanism and a lifting rod. The base plate is provided with a first guide hole, and the lifting rod passes through the first guide hole. The lifting rod is connected between the lifting plate and the lifting drive mechanism. The lifting drive mechanism can drive the lifting plate to move closer to the pressure plate.
[0016] According to the shaping device provided in this embodiment of the utility model, the pressure plate is driven to move closer to the base by the first driving component, so that the pressure plate can apply pressure towards the base to the flange edge of the charging base housing, thereby driving the charging base housing into the first contouring cavity. Under the pressure of the pressure plate, the unhardened charging base housing will contact the inner wall of the first contouring cavity. The cooling component cools the charging base housing, so that the charging base housing hardens, thereby completing the shaping of the charging base housing. Compared with the prior art, the pressure is automatically applied to the charging base housing, the pressure is easy to control, and the shaping quality is improved. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of a shaping device provided in an embodiment of the present invention; Figure 2 A schematic diagram of the internal structure of the shaping device provided in an embodiment of this utility model (assembly state of the charging base housing). Figure 3 for Figure 2 Assembly diagram of the first drive component and the pressure plate; Figure 4 for Figure 2 Assembly diagram of the lifting assembly, base and charging dock; Figure 5 for Figure 2 Assembly diagram of the lifting assembly, base and charging dock; Figure 6 for Figure 2 Assembly diagram of the base plate and lifting components; Figure 7 A schematic diagram of the structure of a charging base housing applicable to a shaping device provided in an embodiment of this utility model.
[0019] Reference numerals in the accompanying drawings: 1. Frame; 2. First drive assembly; 3. Pressure plate; 4. First plate; 5. Second plate; 6. Second contoured cavity; 7. Second connecting hole; 8. First lifting cylinder; 9. Guide rod; 10. Second guide hole; 11. Transition piece; 12. Heat dissipation cavity; 13. Air inlet; 14. First fan; 15. First connecting hole; 16. Heat dissipation hole; 17. Lifting assembly; 18. Lifting cylinder; 19. Lifting rod; 20. Base; 21. Base plate; 22. Lifting plate; 23. Charging base housing; 24. First contoured cavity; 25. Receiving hole; 26. DC boss; 27. DC socket; 28. AC boss; 29. AC socket; 30. First guide hole; 31. Flange edge; 32. DC plug; 33. AC plug. Detailed Implementation
[0020] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] like Figures 1 to 6 As shown, an embodiment of the present invention provides a shaping device, including a frame 1, a base 20, a pressure plate 3, a first driving assembly 2, and a cooling assembly. The base 20 is connected to the frame 1, and the base 20 is provided with a first contouring cavity 24 for the charging base housing 23 to be inserted. The pressure plate 3 is connected to the first driving assembly 2, and the first driving assembly 2 can drive the pressure plate 3 assembly to move towards the base 20, so that the pressure plate 3 can apply pressure toward the base 20 to the flange edge 31 of the charging base housing 23.
[0023] The cooling assembly is used to cool the charging dock housing 23.
[0024] like Figure 7 As shown, the charging base housing 23 to which the shaping device provided in this embodiment is applicable has a flange edge 31 and a DC plug 32 for DC terminals to be inserted and an AC plug 33 for AC terminals to be inserted. The charging base housing 23 is divided into an upper part and a lower part by the flange edge 31.
[0025] In this embodiment, the shape of the first contoured cavity 24 is consistent with the shape of the lower half of the charging base housing 23.
[0026] In this embodiment, when shaping the charging base housing 23, the lower part of the charging base housing 23 is first inserted into the first contouring cavity 24. At this time, the flange edge 31 of the charging base housing 23 is located above the base 20 and is not in contact with the base 20. Then, the first driving assembly 2 drives the pressure plate 3 to move towards the base 20, so that the pressure plate 3 can apply pressure to the flange edge 31 of the charging base housing 23 towards the base 20, thereby driving the charging base housing 23 into the first contouring cavity 24, so that the flange edge 31 contacts the upper side of the base 20. After a period of time under the pressure of the pressure plate 3, the unhardened charging base housing 23 will fully contact the inner wall of the first contouring cavity 24, completing the initial shaping of the charging base housing. Then, the cooling assembly cools the charging base housing 23, so that the charging base housing 23 hardens, thereby completing the shaping of the charging base housing 23.
[0027] In this embodiment, pressure is automatically applied to the charging base housing 23, which is easy to control and improves the shaping quality.
[0028] In one embodiment, the first contoured cavity 24 is provided with a DC boss 26 and an AC boss 28. The DC boss 26 is provided with a DC socket 27 for the DC plug 32 of the charging base housing 23 to be inserted into, and the AC boss 28 is provided with an AC socket 29 for the AC plug 33 of the charging base housing 23 to be inserted into. The gap between the DC boss 26 and the AC boss 28 and the inner wall of the first contoured cavity 24 is used for the charging base housing 23 to be installed.
[0029] In this embodiment, the DC boss 26 is provided with a DC socket 27, which extends in the vertical direction. The diameter of the DC socket 27 is consistent with the size of the DC plug 32 on the finished charging base housing 23. During the shaping process, the DC plug 32 of the charging base housing 23 is inserted into the DC socket 27.
[0030] In this embodiment, the AC boss 28 is provided with an AC socket 29. The AC socket 29 extends in the vertical direction. The diameter of the AC socket 29 is consistent with the size of the AC plug 33 on the finished charging base housing 23. During the shaping process, the AC plug 33 of the charging base housing 23 is inserted into the AC socket 29.
[0031] In this embodiment, the DC boss 26 and the AC boss 28 can support the charging base housing 23, and the DC socket 27 and the AC socket 29 can shape the DC plug 32 and the AC plug 33.
[0032] In one embodiment, the pressure plate 3 has a second contoured cavity 6 on one side facing the base 20, into which the charging base housing 23 is inserted.
[0033] In this embodiment, the bottom surface of the pressure plate 3 is provided with a second contour cavity 6, and the shape of the second contour cavity 6 is consistent with the shape of the upper half of the charging base housing 23.
[0034] In this embodiment, the second contouring cavity 6 is provided so that the upper part of the charging base housing 23 can be shaped under the pressure of the pressure plate 3.
[0035] In one embodiment, the first drive assembly 2 includes a first drive mechanism and a transition member 11. The transition member 11 is connected to the first drive mechanism and the pressure plate 3, and a heat dissipation cavity 12 is provided inside the transition member 11.
[0036] The cooling assembly includes a first cooling element installed in the heat dissipation cavity 12. The inner wall of the second contour cavity 6 is provided with heat dissipation holes 16 that communicate with the heat dissipation cavity 12. The first cooling element can blow air into the second contour cavity 6 through the heat dissipation holes 16.
[0037] In this embodiment, the first driving mechanism is a first lifting cylinder 8. The cylinder body of the first lifting cylinder 8 is connected to the frame 1, and the transition member 11 is connected to the piston rod of the first lifting cylinder 8. The first lifting cylinder 8 drives the transition member 11 to rise and fall, thereby driving the pressure plate 3 to rise and fall.
[0038] In this embodiment, the transition member 11 is provided with a heat dissipation cavity 12, the first cooling member is installed in the heat dissipation cavity 12, and the top wall of the second contour cavity 6 of the pressure plate 3 is provided with a heat dissipation hole 16 communicating with the heat dissipation cavity 12.
[0039] In this embodiment, the first cooling element blows air into the second contour cavity 6 to dissipate heat from the charging base housing 23 and accelerate the hardening of the charging base housing 23.
[0040] In one embodiment, the first cooling component is a first fan 14, and the transition component 11 is provided with an air inlet 13 that communicates with the heat dissipation cavity 12.
[0041] In this embodiment, the first fan 14 is installed in the heat dissipation cavity 12.
[0042] In this embodiment, the air inlet 13 penetrates the sidewall of the heat dissipation cavity 12, allowing air from outside the heat dissipation cavity 12 to enter the heat dissipation cavity 12 through the air inlet 13.
[0043] In this embodiment, after the pressure plate 3 applies pressure to the charging base housing 23 for a preset time, the first fan 14 is driven. The first fan 14 draws air from outside the transition member 11 into the heat dissipation cavity 12 and blows the air in the heat dissipation cavity 12 through the heat dissipation hole 16 to the second contour cavity 6, so as to blow air onto the charging base housing 23 located between the pressure plate 3 and the base 20, accelerate the heat dissipation of the charging base housing 23, and help the charging base housing 23 harden.
[0044] In one embodiment, there are two first fans 14 and two heat dissipation holes 16, with each first fan 14 corresponding to a heat dissipation hole 16.
[0045] Of the two heat dissipation holes 16, one heat dissipation hole 16 corresponds to the DC boss 26, and the other heat dissipation hole 16 corresponds to the AC boss 28.
[0046] In this embodiment, two first fans 14 are arranged at intervals in the heat dissipation cavity 12, and two heat dissipation holes 16 are arranged at intervals, with one first fan 14 corresponding to one heat dissipation hole 16.
[0047] In this embodiment, when cooling the charging base housing 23, the two first fans 14 are started simultaneously to increase the wind speed of the air blown toward the charging base housing, further shorten the hardening time of the charging base housing 23, and further improve the shaping efficiency.
[0048] In one embodiment, the pressure plate 3 has an air outlet groove on one side facing the base 20 that communicates with the second contour cavity 6.
[0049] In this embodiment, an air outlet groove is provided on the bottom end face of the pressure plate 3, and the opening of the air outlet groove faces the base 20.
[0050] In this embodiment, when pressure is applied to the pressure plate 3, the air outlet groove and the upper side of the flange edge 31 of the charging base housing 23 form an air outlet hole. The air outlet hole is connected to the second contour cavity 6, which allows the air entering the second contour cavity 6 to be discharged through the air outlet hole, which facilitates the cooling of the charging base housing 23.
[0051] In one embodiment, the cooling assembly further includes a second fan that blows air toward the base 20.
[0052] In this embodiment, the second fan is mounted on the frame 1 and is located on the side of the base 20. When the second fan is started, it blows air toward the base 20, which can further accelerate the hardening of the charging base housing 23.
[0053] In this embodiment, the power of the second fan is greater than the power of the first fan 14.
[0054] In one embodiment, the base 20 includes a base plate 21 and a lifting plate 22. The base plate 21 is connected to the frame 1. The lifting plate 22 is located on the side of the base plate 21 facing the pressure plate 3. The lifting plate 22 is provided with a receiving hole 25. The receiving hole 25 and the base plate 21 form a first contour cavity 24. A DC boss 26 and an AC boss 28 are provided on the base plate 21.
[0055] The shaping device also includes a lifting assembly 17, which can drive the lifting plate 22 to move toward the pressure plate 3 so that the charging base housing 23 is disengaged from the DC boss 26 and the AC boss 28.
[0056] In this embodiment, the base 20 consists of a base plate 21 and a lifting plate 22.
[0057] In this embodiment, the receiving hole 25 penetrates the lifting plate 22 in the vertical direction, and the receiving hole 25 and the upper side of the base plate 21 form a first contour cavity 24. The AC boss 28 and the DC boss 26 are disposed on the upper side of the base plate 21.
[0058] In this embodiment, the lifting assembly 17 is connected to the lifting plate 22. After the charging base housing 23 is hardened, the first fan 14 and the second fan are turned off, and the first lifting cylinder 8 drives the pressure plate 3 to rise, so that the pressure plate 3 moves away from the charging base housing 23. Then the lifting assembly 17 drives the lifting plate 22 to rise and move away from the bottom plate 21. Since the lower side of the flange edge 31 of the charging base housing 23 is in contact with the upper side of the lifting plate 22 during the shaping process, when the lifting plate 22 rises, it will drive the charging base housing 23 to rise as a whole, so that the charging base housing 23 is separated from the DC boss 26 and the AC boss 28.
[0059] In this embodiment, the lifting assembly 17 and the lifting plate 22 are provided to facilitate the removal of the shaped charging base housing 23 from the first contour cavity 24.
[0060] In one embodiment, the lifting assembly 17 includes a lifting drive mechanism and a lifting rod 19. The base plate 21 is provided with a first guide hole 30, and the lifting rod 19 passes through the first guide hole 30. The lifting rod 19 is connected between the lifting plate 22 and the lifting drive mechanism. The lifting drive mechanism can drive the lifting plate 22 to move closer to the pressure plate 3.
[0061] In this embodiment, the lifting drive mechanism is a lifting cylinder 18.
[0062] In this embodiment, the lifting cylinder 18 is located directly below the base plate 21. The cylinder body of the lifting cylinder 18 is connected to the frame 1, and the piston rod of the lifting cylinder 18 is connected to the lifting rod 19.
[0063] In this embodiment, the lifting rod 19 is slidably inserted into the first guide hole 30 of the base plate 21 in the vertical direction. The bottom of the lifting rod 19 is connected to the piston rod, and the top of the lifting rod 19 is connected to the lifting plate 22.
[0064] In this embodiment, after the charging base housing 23 is hardened, the lifting cylinder 18 drives the lifting rod 19 to rise, and the lifting rod 19 drives the lifting plate 22 to rise.
[0065] In this embodiment, the lifting rod 19 can guide the lifting plate 22 and prevent the lifting plate 22 from tilting when it is raised or lowered.
[0066] In this embodiment, the first drive assembly 2 also includes a guide rod 9. The frame 1 is provided with a second guide hole 10. The guide rod 9 is slidably inserted into the second guide hole 10 in the up and down direction. The lower end of the guide rod 9 is connected to the transition member 11, which can play a guiding role when the transition member 11 is raised and lowered, so as to prevent the transition member 11 from tilting when it is raised and lowered.
[0067] In this embodiment, the pressure plate 3 includes a first plate body 4 and a second plate body 5. The first plate body 4 is screwed to the bottom of the transition member 11. The first plate body 4 is provided with a first connecting hole 15, and the second plate body 5 is provided with a second connecting hole 7. The second plate body 5 is connected to the bottom of the first plate body 4 by inserting screws into the first connecting hole 15 and the second connecting hole 7.
[0068] In this embodiment, the second plate 5 and the first plate 4 together form the second contour cavity 6.
[0069] In the accompanying drawings shown in this embodiment, in order to more clearly show the state when the pressure plate 3 applies pressure to the charging base housing 23, the second plate 5 is not assembled with the first plate 4. The state shown for the second plate 5 is when it is pressed on the charging base housing 23.
[0070] In this embodiment, both the DC boss 26 and the AC boss 28 are detachably connected to the base plate 21.
[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0072] According to the shaping device provided in this embodiment of the utility model, the first driving component 2 drives the pressure plate 3 to move towards the base 20, so that the pressure plate 3 can apply pressure towards the base 20 to the flange edge 31 of the charging base housing 23, thereby driving the charging base housing 23 into the first contouring cavity 24. Under the pressure of the pressure plate 3, the unhardened charging base housing 23 will contact the inner wall of the first contouring cavity 24. The cooling component cools the charging base housing 23, so that the charging base housing 23 hardens, thereby completing the shaping of the charging base housing 23. Compared with the prior art, the pressure is automatically applied to the charging base housing 23, the pressure is easy to control, and the shaping quality is improved.
[0073] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.
Claims
1. A shaping device, characterized in that, The device includes a frame (1), a base (20), a pressure plate (3), a first drive assembly (2), and a cooling assembly. The base (20) is connected to the frame (1). The base (20) has a first contoured cavity (24) for the charging base housing (23) to be installed. The pressure plate (3) is connected to the first drive assembly (2). The first drive assembly (2) can drive the pressure plate (3) assembly to move closer to the base (20) so that the pressure plate (3) can apply pressure toward the base (20) to the flange edge (31) of the charging base housing (23). The cooling assembly is used to cool the charging dock housing (23).
2. The shaping device according to claim 1, characterized in that, The first contoured cavity (24) is provided with a DC boss (26) and an AC boss (28). The DC boss (26) is provided with a DC socket (27) for the DC plug (32) of the charging base housing (23) to be inserted. The AC boss (28) is provided with an AC socket (29) for the AC plug (33) of the charging base housing (23) to be inserted. The gap between the DC boss (26) and the AC boss (28) and the inner wall of the first contoured cavity (24) is used for the charging base housing (23) to be installed.
3. The shaping device according to claim 2, characterized in that, The pressure plate (3) has a second contoured cavity (6) on one side facing the base (20), and the second contoured cavity (6) is for the charging base housing (23) to be installed.
4. The shaping device according to claim 3, characterized in that, The first drive assembly (2) includes a first drive mechanism and a transition member (11). The transition member (11) is connected to the first drive mechanism and the pressure plate (3). A heat dissipation cavity (12) is provided inside the transition member (11). The cooling assembly includes a first cooling component, which is installed in the heat dissipation cavity (12). The inner wall of the second contour cavity (6) is provided with a heat dissipation hole (16) communicating with the heat dissipation cavity (12). The first cooling component can blow air into the second contour cavity (6) through the heat dissipation hole (16).
5. The shaping device according to claim 4, characterized in that, The first cooling component is a first fan (14), and the transition component (11) is provided with an air inlet (13) that communicates with the heat dissipation cavity (12).
6. The shaping device according to claim 5, characterized in that, The first fan (14) is provided in two parts, and the heat dissipation hole (16) is provided in two parts, with the first fan (14) and the heat dissipation hole (16) corresponding one-to-one; Of the two heat dissipation holes (16), one heat dissipation hole (16) corresponds to the DC boss (26), and the other heat dissipation hole (16) corresponds to the AC boss (28).
7. The shaping device according to claim 4, characterized in that, The pressure plate (3) has an air outlet groove on one side facing the base (20) that communicates with the second contour cavity (6).
8. The shaping device according to claim 4, characterized in that, The cooling assembly also includes a second fan that blows air toward the base (20).
9. The shaping device according to claim 3, characterized in that, The base (20) includes a base plate (21) and a lifting plate (22). The base plate (21) is connected to the frame (1). The lifting plate (22) is located on the side of the base plate (21) facing the pressure plate (3). The lifting plate (22) is provided with a receiving hole (25). The receiving hole (25) and the base plate (21) form the first contour cavity (24). The DC boss (26) and the AC boss (28) are provided on the base plate (21). The shaping device also includes a lifting assembly (17) that can drive the lifting plate (22) to move toward the pressure plate (3) so that the charging base housing (23) disengages from the DC boss (26) and the AC boss (28).
10. The shaping device according to claim 9, characterized in that, The lifting assembly (17) includes a lifting drive mechanism and a lifting rod (19). The base plate (21) is provided with a first guide hole (30). The lifting rod (19) passes through the first guide hole (30). The lifting rod (19) is connected between the lifting plate (22) and the lifting drive mechanism. The lifting drive mechanism can drive the lifting plate (22) to move closer to the pressure plate (3).