Powder metallurgy forming die

By using a motor-driven threaded rod and gear system, uniform heating and rapid cooling of powder metallurgy forming molds are achieved, solving the problems of uneven heating and cooling in existing molds and improving production efficiency and product quality.

CN120984880AActive Publication Date: 2025-11-21GUANGDONG CHUANYUAN PRECISION MOULD CO LTD
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Patent Information

Application Number
CN202511375964.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2025-11-21
Estimated Expiration
2045-09-25

AI Technical Summary

Technical Problem

Existing powder metallurgy molding dies cannot achieve uniform heating and uniform heating of powder for die casting, resulting in low production efficiency and unstable product quality.

Method used

A uniform heating device is constructed using a combination of a motor-driven threaded rod, threaded sleeve, limiting rod, and heater. The motor drives the threaded rod to move the threaded sleeve and connecting rod together, enabling the heater to move within a set range and achieve uniform heating. Combined with the design of gears, racks, and push rods, the device enables automated movement and rapid cooling of the forming tank.

Benefits of technology

It achieves precise positioning and uniform heat distribution during the heating process, improving production efficiency and reducing labor. Furthermore, the uniform cooling device ensures the temperature uniformity of the coolant and the heat exchange efficiency, thereby enhancing the stability and lifespan of the equipment.

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Abstract

The invention relates to the technical field of forming dies, and provides a powder metallurgy forming die which comprises a base, a supporting frame is fixedly connected to the top of the base, a die-casting machine is slidably connected to the side face of the supporting frame, a uniform heating device is arranged at the top of the base, and the bottom of a fixing plate is fixedly connected to the top of the base. A motor is fixedly connected to the side face of the fixing plate, an output shaft of the motor is fixedly connected with a threaded rod, the circumferential face of the threaded rod is in threaded connection with a threaded sleeve, a groove is formed in the top of the base, a hollowed-out plate is fixedly connected to the inner side face of the groove, and a limiting rod is fixedly connected to the side face of the fixing plate. The circumferential surface of the threaded sleeve is fixedly connected with a connecting rod, and one end of the connecting rod is fixedly connected with a heater. Through the design, the position precision and the heat distribution uniformity in the heating process can be guaranteed. And the heating problem of powder metallurgy is solved through the uniform heating device.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forming die, in particular to a powder metallurgy forming die. BACKGROUND

[0002] Forming die is a tool used to produce various workpieces, which processes raw materials into the required shape and size through certain processing technology. Forming die is widely used in various industries, especially in manufacturing industry, such as automobiles, home appliances, electronic products, daily necessities, etc. all cannot do without die, mainly used for metal casting process, especially suitable for aluminum, zinc, copper and other metals. Molten metal is injected into the mold and cooled and formed under high pressure, commonly used for manufacturing complex metal parts, such as automobile engine parts, electronic product housings, etc. for extrusion molding of plastics, rubbers and other materials. The raw material is forced to extrude after heating and cooled and formed in the mold. Common products such as pipes and profiles, the design and manufacture of forming die is crucial to production efficiency and product quality. High-quality die can improve production efficiency, reduce scrap rate, shorten production cycle, thereby reducing production cost. In short, forming die plays an important role in modern manufacturing industry and is an indispensable key tool in industrial production.

[0003] According to a powder metallurgy forming die (publication number: CN116727667B), the upper die punch of the die body is provided with a lubricant smearing device; the lubricant smearing device comprises a smearing belt, a driving module and a lubricant spraying module, the smearing belt is annular, and the smearing belt is sleeved on the upper die punch, the inner surface of the smearing belt can contact with the outer wall of the upper die punch, and the lubricant spraying module is arranged on the inner side of the smearing belt. The present application can smear lubricant on the surface of the upper die punch during the process of pressing the blank, thereby greatly reducing the friction loss between the upper die punch and the negative mold.

[0004] The die body, driving module and lubricant spraying module in the above-mentioned application cooperate with each other to reduce the friction loss between the upper die punch and the negative mold, but cannot realize the effect of uniform heating and pressure casting of powder. Therefore, we propose a powder metallurgy forming die. SUMMARY

[0005] The present application proposes a powder metallurgy forming die.

[0006] The technical scheme of the present application is as follows: a powder metallurgy forming die, comprising a base, a support frame is fixedly connected to the top of the base, a pressure casting machine is slidably connected to the side surface of the support frame, a switch is fixedly connected to the side surface of the pressure casting machine, and a uniform heating device is arranged on the top of the base.

[0007] The uniform heating device comprises a fixed plate, the bottom of the fixed plate is fixedly connected to the top of the base, the side of the fixed plate is fixedly connected with a motor, the output shaft of the motor is fixedly connected with a threaded rod, the circumferential surface of the threaded rod is threadedly connected with a threaded sleeve, the top of the base is provided with a groove, the inner side of the groove is fixedly connected with a hollow plate, the side of the fixed plate is fixedly connected with a limiting rod, the circumferential surface of the threaded sleeve is fixedly connected with a connecting rod, and one end of the connecting rod is fixedly connected with a heater. The main function of the uniform heating device is to drive the threaded rod, the threaded sleeve and the connecting rod through the motor to move the heater within a set range, thereby achieving uniform heating. Such design can ensure the position accuracy and heat distribution uniformity during heating, which is realized through the cooperation of the motor, the threaded rod, the threaded sleeve, the limiting rod, the heater and other components. When the motor is started, the threaded rod is driven to rotate, the threaded rod drives the threaded sleeve to move horizontally under the limiting action of the limiting rod, the threaded sleeve drives the connecting rod to move horizontally in the groove, the connecting rod drives the heating to move horizontally, and the heater moves horizontally to uniformly heat the forming groove body. Such design can ensure the position accuracy and heat distribution uniformity during heating.

[0008] The circumferential surface of the threaded sleeve is slidably connected with the circumferential surface of the limiting rod. The threaded sleeve and the limiting rod are slidably connected to accurately control the movement range of the threaded sleeve, ensure that the uniform heating device can stably, accurately and uniformly heat the target object, and increase the durability and flexibility of the mechanical device.

[0009] The top of the hollow plate is slidably connected with a forming groove body. The main function of the hollow plate top slidably connected with the forming groove body is to provide stable guidance, flexible adjustment, support and reduce friction, thereby improving the working accuracy, stability and service life of the device.

[0010] The bottom of the forming groove body is located on the displacement trajectory of the heater. The design that the bottom of the forming groove body is located on the displacement trajectory of the heater mainly provides accurate movement trajectory and stable guidance for the heater, ensures the uniformity and stability of the heating process, and optimizes the long-term use performance of the equipment.

[0011] The forming groove body is located directly below the die casting machine. The design that the forming groove body is located directly below the die casting machine mainly serves to accommodate and support, guide metal flow and improve docking accuracy, thereby ensuring the smooth progress of the die casting process and the stability of product quality.

[0012] The circumferential surface of the threaded rod is provided with a moving device, the moving device comprises a gear, the circumferential surface of the gear is fixedly connected to the circumferential surface of the threaded rod, the top of the base is slidably connected with a toothed rod, one end of the toothed rod is fixedly connected with a push rod, the side surface of the base is provided with a sliding groove, the inner side surface of the sliding groove is slidably connected with a water tank, the inner side surface of the sliding groove is provided with a fixed groove, the side surface of the water tank is fixedly connected with a fixed block, the top of the fixed block is provided with a slot, the inner side surface of the slot is slidably connected with a bolt, the side surface of the water tank is provided with a water outlet, and the top of the water outlet is inserted with a rubber plug. The design is to drive the gear transmission by the threaded rod to push the formed groove body after high-temperature die casting into the water tank for rapid cooling, so that the effect of rapid forming is achieved.

[0013] The gear is engaged with the toothed rod, and the inner side surface of the water tank is fixedly connected with a hollow tank. This design can make the gear drive the linear motion of the toothed rod, thereby controlling the action of the push rod. The hollow tank can help improve the efficiency of heat exchange. The hollow structure can increase the contact area between water and air, promote the heat loss or absorption of water, and thus optimize the heating or cooling process.

[0014] The top of the hollow tank is located on the displacement trajectory of the formed groove body, and there is a gap between the bottom of the hollow tank and the inner side bottom of the water tank. Such a design may be mainly to improve the stability, durability and operation convenience of the equipment, while ensuring that the equipment can operate efficiently and safely.

[0015] The side surface of the water tank is provided with a uniform cooling device, the uniform cooling device comprises a rotating shaft, the rotating shaft is connected through the side surface of the water tank, and one end of the rotating shaft is fixedly connected with a stirring blade. The combination of the stirring blade and the rotating shaft, as part of the uniform cooling device, promotes the circulation, mixing and flow of the cooling liquid in the water tank, not only ensures the uniformity of the temperature of the cooling liquid, but also improves the heat exchange efficiency, reduces the accumulation of impurities, helps to maintain the long-term efficient operation of the cooling system, avoids the problems of temperature unevenness and poor cooling effect, and thus ensures the safety and stability of the equipment.

[0016] The circumferential surface of the rotating shaft is fixedly connected with a rotating handle, and there is a gap between the side surface of the stirring blade and the inner side bottom of the water tank. The rotating handle enables the stirring blade to be manually operated, and the gap between the stirring blade and the bottom of the water tank ensures smooth operation of the stirring device, reduces wear, friction and energy consumption, prevents stagnation and sediment accumulation of the cooling liquid, and optimizes the stirring effect. This design improves the stability, efficiency and life of the cooling system.

[0017] The working principle and beneficial effects of the present application are: 1. The motor, threaded rod, threaded sleeve, limiting rod, heater and other components cooperate with each other, the motor is started, the motor drives the threaded rod to rotate, the threaded rod rotates to drive the threaded sleeve to move horizontally under the limiting action of the limiting rod, the threaded sleeve moves horizontally to drive the connecting rod to move horizontally in the groove, the connecting rod moves horizontally to drive the heating to move horizontally, and the heater uniformly heats the forming groove body. Such design can ensure the position accuracy and heat distribution uniformity in the heating process.

[0018] 2. The motor, threaded rod, gear, toothed rod, push rod and other components cooperate with each other, the motor is started, the motor drives the threaded rod to rotate, the threaded rod rotates to drive the gear to rotate, the gear rotates to drive the toothed rod engaged therewith to move horizontally, the toothed rod moves horizontally to drive the push rod to move horizontally, the push rod moves horizontally to push the formed die casting groove body to move horizontally, and the formed groove body moves horizontally to the top of the water tank and falls into the hollow box. Thus, the automatic moving effect is realized, the work efficiency is improved, and the labor amount is reduced.

[0019] 3. When the formed groove body falls into the hollow box, the operator rotates the rotating handle, the rotating handle drives the rotating shaft to rotate, and the rotating shaft drives the stirring blade to rotate to stir the water in the water tank. Thus, the circulation, mixing and flow of the cooling liquid in the water tank are promoted, the temperature uniformity of the cooling liquid is ensured, and the heat exchange efficiency is improved.

[0020] Of course, implementing any product of the present application does not necessarily require achieving all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0022] Figure 1 It is a three-dimensional front view of the overall structure of the present application; Figure 2 It is a three-dimensional side view of the overall structure of the present application; Figure 3 It is a three-dimensional schematic view of the uniform heating device structure of the present application; Figure 4 It is a three-dimensional front view of the moving device structure of the present application; Figure 5 It is a three-dimensional front view of the uniform cooling device structure of the present application; Figure 6 It is a three-dimensional schematic view of the side cross-sectional structure of the present application; Figure 7 It is a three-dimensional enlarged view of the structure at A in the present application; Figure 6 Figure 8 It is a front view of the structure of the present application;​ Figure 9 For the present invention Figure 8 A 3D magnified view of the structure at point B.

[0023] In the diagram: 1. Base; 2. Support frame; 3. Die-casting machine; 4. Uniform heating device; 5. Moving device; 6. Uniform cooling device; 7. Switch; 41. Fixing plate; 42. Motor; 43. Threaded rod; 44. Threaded sleeve; 45. Groove; 46. Hollow plate; 47. Limiting rod; 48. Connecting rod; 49. Heater; 410. Forming tank; 51. Gear; 52. Tooth rack; 53. Push rod; 54. Sliding groove; 55. Water tank; 56. Hollow box; 57. Fixing groove; 58. Fixing block; 59. Slot; 510. Pin; 511. Outlet; 512. Plug; 61. Rotating shaft; 62. Stirring blade; 63. Rotating handle. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1 like Figures 1-9 As shown, this embodiment proposes a powder metallurgy forming mold, including a base 1, a support frame 2 fixedly connected to the top of the base 1, a die casting machine 3 slidably connected to the side of the support frame 2, a switch 7 fixedly connected to the side of the die casting machine 3, and a uniform heating device 4 provided on the top of the base 1.

[0026] The uniform heating device 4 includes a fixed plate 41, the bottom of which is fixedly connected to the top of the base 1. A motor 42 is fixedly connected to the side of the fixed plate 41, and a threaded rod 43 is fixedly connected to the output shaft of the motor 42. A threaded sleeve 44 is threadedly connected to the circumferential surface of the threaded rod 43. A groove 45 is formed on the top of the base 1, and a perforated plate 46 is fixedly connected to the inner side of the groove 45. A limit rod 47 is fixedly connected to the side of the fixed plate 41, and a connecting rod 48 is fixedly connected to the circumferential surface of the threaded sleeve 44. A heater 49 is fixedly connected to one end of the connecting rod 48. The main function of this uniform heating device 4 is to use the motor 42 to drive the threaded rod 43, the threaded sleeve 44, and the connecting rod 48 in a coordinated manner, so that the heater 49 can move within a set range, thereby achieving uniform heating. This design ensures the positional accuracy and uniform heat distribution during the heating process.

[0027] The circumferential surface of the threaded sleeve 44 is in sliding connection with the circumferential surface of the limiting rod 47. The sliding connection between the threaded sleeve 44 and the limiting rod 47 serves to precisely control the movement range of the threaded sleeve 44, so as to ensure that the uniform heating device 4 can stably, accurately and uniformly heat the target object, and to increase the durability and flexibility of the mechanical device.

[0028] The top of the hollow plate 46 is in sliding connection with the shaped groove body 410. The main function of the sliding connection between the top of the hollow plate 46 and the shaped groove body 410 is to provide stable guidance, flexible adjustment, support and friction reduction for the device, so as to improve the working accuracy, stability and service life of the device.

[0029] The bottom of the shaped groove body 410 is located on the displacement trajectory of the heater 49. The design of the bottom of the shaped groove body 410 on the displacement trajectory of the heater 49 mainly serves to provide the heater 49 with a precise movement trajectory and stable guidance, so as to ensure the uniformity and stability of the heating process, and to optimize the long-term use performance of the equipment.

[0030] The shaped groove body 410 is located directly below the die casting machine 3. The design of the shaped groove body 410 directly below the die casting machine 3 mainly serves to accommodate and support the metal flow, improve the docking accuracy, so as to ensure the smooth progress of the die casting process and the stability of the product quality.

[0031] In this embodiment, the powder is first added to the shaped groove body 410. When the inside of the shaped groove body 410 needs to be heated, the operator starts the motor 42, the output end of the motor 42 rotates, the output end of the motor 42 drives the threaded rod 43 to rotate, the threaded rod 43 rotates to drive the threaded sleeve 44 to move horizontally under the limitation of the limiting rod 47, the threaded sleeve 44 moves horizontally to drive the connecting rod 48 to move horizontally in the groove 45, the connecting rod 48 moves horizontally to drive the heater 49 to move horizontally, the heater 49 moves horizontally to uniformly heat the bottom of the shaped groove body 410, so that the metal powder in the inside of the shaped groove body 410 is stably raised for melting. When the heating is completed, the die casting machine 3 is started, and the metal powder in the shaped groove body 410 after high-temperature heating is subjected to die casting forming by the die casting machine 3.

[0032] Embodiment 2 As Figures 1-9As shown, based on the same concept as in Embodiment 1 above, the circumference of the threaded rod 43 is provided with a moving device 5, which includes a gear 51 fixedly connected to the circumference of the threaded rod 43, a toothed rod 52 slidingly connected to the top of the base 1, a push rod 53 fixedly connected to one end of the toothed rod 52, a sliding groove 54 opened in the side surface of the base 1, a water tank 55 slidingly connected to the inner side surface of the sliding groove 54, a fixed groove 57 opened in the inner side surface of the sliding groove 54, a fixed block 58 fixedly connected to the side surface of the water tank 55, a slotted groove 59 opened in the top of the fixed block 58, a latch 510 slidingly connected to the inner side surface of the slotted groove 59, a water outlet 511 provided on the side surface of the water tank 55, and a rubber plug 512 inserted into the top of the water outlet 511. Such a design is to drive the gear 51 through the threaded rod 43 to make the high-temperature pressure-cast finished shaped groove body 410 push into the water tank 55 for rapid cooling, so as to achieve the effect of rapid shaping.

[0033] The gear 51 is engaged with the toothed rod 52, and the inner side surface of the water tank 55 is fixedly connected with a hollow tank 56. This design can make the gear 51 drive the linear motion of the toothed rod 52, thereby controlling the action of the push rod 53. The hollow tank 56 helps to improve the efficiency of heat exchange. The hollow structure can increase the contact area between water and air, promote the heat loss or absorption of water, and thus optimize the heating or cooling process.

[0034] The top of the hollow tank 56 is located on the displacement trajectory of the shaped groove body 410, and there is a gap between the bottom of the hollow tank 56 and the inner side bottom of the water tank 55. Such a design may be mainly to improve the stability, durability and operation convenience of the equipment, while ensuring that the equipment can operate efficiently and safely.

[0035] The side surface of the water tank 55 is provided with a uniform cooling device 6, which includes a rotating shaft 61 connected through the side surface of the water tank 55, and a stirring blade 62 fixedly connected to one end of the rotating shaft 61. The combination of the stirring blade 62 and the rotating shaft 61, as part of the uniform cooling device 6, promotes the circulation, mixing and flow of the cooling liquid in the water tank 55, not only ensuring the uniformity of the temperature of the cooling liquid, but also improving the heat exchange efficiency and reducing the accumulation of impurities, which helps to maintain the long-term efficient operation of the cooling system, avoids the problems of temperature unevenness and poor cooling effect, and thus ensures the safety and stability of the equipment.

[0036] The circumferential surface of the rotating shaft 61 is fixedly connected with a rotating handle 63, and the side surface of the stirring blade 62 is spaced apart from the bottom of the inner side surface of the water tank 55. The rotating handle 63 enables the stirring blade 62 to be manually operated, and the space between the stirring blade 62 and the bottom of the water tank 55 ensures smooth operation of the stirring device, reduces wear, friction and energy consumption, prevents stagnation and sediment accumulation of the coolant, and optimizes the stirring effect. This design improves the stability, efficiency and service life of the cooling system.

[0037] In the embodiment, when the die casting machine 3 completes die casting of the powder in the forming groove body 410, the water tank 55 is connected with the sliding groove 54, the position of the water tank 55 is adjusted, the bolt 510 is inserted into the fixing groove 57 through the slot 59, the position of the water tank 55 is fixed, the motor 42 is started, the motor 42 drives the threaded rod 43 to rotate, the threaded rod 43 drives the gear 51 to rotate, the gear 51 drives the toothed rod 52 to move horizontally, the toothed rod 52 drives the push rod 53 to move horizontally, the push rod 53 moves horizontally to push the forming groove body 410 after die casting to move horizontally, and the forming groove body 410 moves horizontally to the top of the water tank 55 and falls into the hollow box 56. When the forming groove body 410 falls into the hollow box 56, in order to ensure uniform cooling of the forming groove body 410 after die casting, the operator rotates the rotating handle 63, the rotating handle 63 drives the rotating shaft 61 to rotate, the rotating shaft 61 drives the stirring blade 62 to rotate, the stirring blade 62 rotates to stir the water in the water tank 55, the rotating blade 62 stirs in the water tank 55 to promote circulation of the water in the water tank 55, avoids temperature unevenness and poor cooling effect, prevents the powder after die casting in the forming groove body from being unqualified, and thus ensures the safety and stability of the equipment.

[0038] The above is only a preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A powder metallurgical forming die, characterized in that, Including the base (1), the top of the base (1) is fixedly connected with the support frame (2), the side of the support frame (2) is slidably connected with the die casting machine (3), the side of the die casting machine (3) is fixedly connected with the switch (7), the top of the base (1) is provided with the uniform heating device (4); The uniform heating device (4) includes a fixed plate (41), the bottom of the fixed plate (41) is fixedly connected on the top of the base (1), the side of the fixed plate (41) is fixedly connected with the motor (42), the output shaft of the motor (42) is fixedly connected with the threaded rod (43), the circumferential surface of the threaded rod (43) is threadedly connected with the threaded sleeve (44), the top of the base (1) is provided with the groove (45), the inner side of the groove (45) is fixedly connected with the hollow plate (46), the side of the fixed plate (41) is fixedly connected with the limiting rod (47), the circumferential surface of the threaded sleeve (44) is fixedly connected with the connecting rod (48), one end of the connecting rod (48) is fixedly connected with the heater (49).

2. A powder metallurgy forming die according to claim 1, wherein The circumferential surface of the threaded sleeve (44) is slidably connected with the circumferential surface of the limiting rod (47).

3. A powder metallurgy forming die according to claim 2, wherein The top of the hollow plate (46) is slidably connected with the forming groove body (410).

4. A powder metallurgy forming die according to claim 3, wherein The bottom of the forming groove body (410) is located on the displacement trajectory of the heater (49).

5. A powder metallurgy forming die according to claim 4, characterised in that The forming groove body (410) is located directly below the die casting machine (3).

6. A powder metallurgy forming die according to claim 5, wherein The circumferential surface of the threaded rod (43) is provided with the moving device (5), the moving device (5) includes a gear (51), the circumferential surface of the gear (51) is fixedly connected on the circumferential surface of the threaded rod (43), the top of the base (1) is slidably connected with the toothed rod (52), one end of the toothed rod (52) is fixedly connected with the push rod (53), the side of the base (1) is provided with the sliding groove (54), the inner side of the sliding groove (54) is slidably connected with the water tank (55), the inner side of the sliding groove (54) is provided with the fixed groove (57), the side of the water tank (55) is fixedly connected with the fixed block (58), the top of the fixed block (58) is provided with the slot (59), the inner side of the slot (59) is slidably connected with the bolt (510), the side of the water tank (55) is provided with the water outlet (511), the top of the water outlet (511) is inserted with the rubber plug (512).

7. A powder metallurgy forming die according to claim 6, wherein The gear (51) is engaged with the toothed rod (52), and the inner side of the water tank (55) is fixedly connected with the hollow tank (56).

8. A powder metallurgy forming die according to claim 7, wherein The top of the hollow tank (56) is located on the displacement trajectory of the forming groove body (410), and there is a gap between the bottom of the hollow tank (56) and the inner bottom of the water tank (55).

9. A powder metallurgy forming die according to claim 8, wherein The side of the water tank (55) is provided with the uniform cooling device (6), and the uniform cooling device (6) includes a rotating shaft (61), the rotating shaft (61) penetrates through the side of the water tank (55), and one end of the rotating shaft (61) is fixedly connected with the stirring blade (62).

10. A powder metallurgy forming die according to claim 9, wherein The circumferential surface of the rotating shaft (61) is fixedly connected with a rotating handle (63), and the side surface of the stirring blade (62) is spaced from the bottom of the inner side surface of the water tank (55).

Citation Information

Patent Citations

  • A powder metallurgy forming mold

    CN116727667B

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    CN115635078A

  • Cooling circulation mechanism for forming extruded water pipe

    CN120056418A

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    CN217831848U

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    CN219924558U