Pouring mold for inner and outer coil winding reels for magnetic resonance
By introducing a cooling mechanism into the casting mold of the inner and outer coil winding cylinder for magnetic resonance, and using an air pipe and water pump system to achieve rapid cooling, the problem of uneven cooling is solved, ensuring the dimensional stability of the winding cylinder and its convenient removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-15
- Publication Date
- 2026-03-27
AI Technical Summary
The existing casting molds for inner and outer coil winding cylinders used in magnetic resonance imaging have a long cooling time during natural cooling, which leads to uneven cooling and easily causes defects such as internal stress, deformation and shrinkage marks, affecting dimensional stability.
A casting mold with a cooling mechanism was designed. Hot air is extracted through a second air pipe and a U-shaped pipe and cooled in a spray box. Cooling water is sprayed out by a third water pump to cool the hot air. Air is circulated through a water tank to achieve rapid cooling. Combined with a limiting structure, the mold can be disassembled and the winding drum can be removed.
Rapid cooling of the winding bobbin is achieved, avoiding internal stress and deformation caused by uneven cooling, ensuring dimensional stability, and facilitating the removal of the winding bobbin after molding.
Smart Images

Figure CN121733736A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of casting mold technology for winding cylinders, specifically a casting mold for inner and outer coil winding cylinders for magnetic resonance. Background Technology
[0002] The magnetic resonance coil winding is the physical support frame of the radio frequency coil, carrying the wires and integrating components such as shielding layers and capacitors. The materials must meet requirements such as non-magnetic, low dielectric constant, and radio frequency transparency. Common materials include polyphenylene oxide (PPO / Noryl), polyoxymethylene (POM), polycarbonate (PC), and glass fiber reinforced plastic (GFRP). The design must be adapted to the human body contour or imaging area to ensure imaging quality, equipment stability, and patient comfort.
[0003] The existing casting mold cavities for magnetic resonance inner and outer coil winding cylinders are mostly integrated structures. When in use, material is poured into the mold cavity. After casting, the material is cooled and solidified by natural cooling to form the magnetic resonance inner and outer coil winding cylinder. After cooling and solidification, the entire mold must be disassembled to remove the magnetic resonance inner and outer coil winding cylinder.
[0004] In actual use, natural cooling takes a long time and is prone to uneven cooling, where the outer side of the inner and outer coil winding tube for magnetic resonance has cooled and formed while the inner material has not yet cooled. Uneven cooling during production can easily generate internal stress after the winding tube is formed, resulting in defects such as deformation and shrinkage marks, which affect dimensional stability.
[0005] Therefore, a casting mold for inner and outer coil winding cylinders for magnetic resonance is proposed to address the above problems. Summary of the Invention
[0006] To overcome the shortcomings of existing technologies and solve the problem of uneven cooling caused by the large difference in cooling time between the inner and outer coil winding cylinders for magnetic resonance due to the long natural cooling time, which leads to internal stress and deformation after the winding cylinder is formed, this invention proposes a casting mold for inner and outer coil winding cylinders for magnetic resonance.
[0007] A casting mold for an inner and outer coil winding cylinder for magnetic resonance imaging includes a lower mold base, an intermediate mold sleeve slidably mounted on the top of the lower mold base, an upper mold cover slidably mounted on the top of the intermediate mold sleeve, an intermediate module slidably mounted in the inner cavities of the lower mold base, the intermediate mold sleeve, and the upper mold cover, and a third groove is provided in the inner cavities of the lower mold base, the intermediate mold sleeve, and the upper mold cover. It also includes a cooling mechanism for cooling the winding drum; The cooling mechanism includes a second air pipe, a U-shaped pipe, and a third air pipe. The second air pipe, the U-shaped pipe, and the third air pipe are respectively connected to the inner cavity of the third groove. One end of the second air pipe and the U-shaped pipe are fixedly connected to a spray box. One end of the third air pipe is fixedly connected to a water removal box. The water removal box is connected to the inner cavity of the spray box. A plurality of second nozzles are fixedly installed in the inner cavity of the spray box. The tops of the plurality of second nozzles are fixedly connected to a third water pump. The third water pump is fixedly installed on the top of the spray box. A water inlet pipe is fixedly connected to one side of the third water pump.
[0008] Preferably, the lower mold base has a second groove in its inner cavity, a push plate is slidably installed in the inner cavity of the second groove, and a fourth groove is provided on the top of the lower mold base, with a limit block fixedly installed in the inner cavity of the fourth groove.
[0009] Preferably, a limiting ring is slidably installed in the inner cavity of the fourth groove, the limiting ring is fixedly connected to the intermediate mold sleeve, a limiting groove is formed at the bottom of the limiting ring, and the limiting block is slidably installed in the inner cavity of the limiting groove.
[0010] Preferably, a first connecting rod is fixedly installed at the bottom of the push plate, and a spring is wound around the outer surface of the first connecting rod. A second connecting rod is fixedly installed at the bottom of the lower mold base. A support plate is fixedly connected to the bottom of the second connecting rod. A cylinder is fixedly connected to the top of the support plate. A top plate is fixedly connected to the output end of the cylinder. The top plate is slidably connected to the second connecting rod.
[0011] Preferably, a limiting plug is fixedly installed in the inner cavity of the lower mold base, a first groove is provided at the bottom of the intermediate module, the limiting plug is slidably installed in the inner cavity of the first groove, a feed port is provided at the top of the intermediate module, and a fifth groove is provided in the inner cavity of the intermediate module.
[0012] Preferably, the inner cavity of the fifth groove is connected to a first water pipe and a second water pump. One end of the first water pipe is fixedly connected to a water tank, the bottom of the water tank is fixedly connected to the first water pump, and the bottom of the first water pump is fixedly connected to a first nozzle.
[0013] Preferably, a water tank is fixedly installed inside the intermediate module, the first nozzle is located inside the water tank, and a second water pipe is fixedly connected to the bottom of the second water pump, and the second water pipe is fixedly connected to the water tank.
[0014] Preferably, a plurality of baffles are fixedly installed in the inner cavity of the water tank, and the plurality of baffles are distributed in a cross pattern.
[0015] Preferably, a water outlet pipe is fixedly installed at the bottom of the spray box, and a sixth groove is formed in the inner cavity of the water outlet pipe, and a stop block is fixedly installed in the inner cavity of the sixth groove.
[0016] Preferably, the intermediate module, upper mold cover, intermediate mold sleeve and lower mold base are all made of Cr12MoV mold steel and the surface is nitrided.
[0017] The advantages of this invention are: 1. This invention extracts hot air from the inner cavities of multiple third grooves through a second air pipe and a U-shaped pipe, and discharges it into the inner cavity of a spray box. Water is pumped by a third water pump and sprayed out through a second nozzle to cool the hot air. The cooled air then returns to the inner cavity of the third groove after passing through a dewatering tank. This method can quickly remove the heat released from the raw material into the inner cavity of the third groove, thereby achieving rapid cooling of the raw material, reducing the cooling time of the winding bobbin, and avoiding internal stress after the winding bobbin is formed, which can lead to defects such as deformation and shrinkage marks, affecting dimensional stability.
[0018] 2. In this invention, water sprayed from the second nozzle cools the hot air. The cooled air enters the inner cavity of the dewatering tank. The air entering the inner cavity of the dewatering tank will carry some moisture. In order to prevent moisture from entering the inner cavity of the third air pipe and the third groove, several baffles are used to block the air. The air will pass between two adjacent baffles. During this process, the moisture in the air will hit the baffles and stay at the bottom of the baffles. After gathering into water droplets, it will flow back into the inner cavity of the spray box.
[0019] 3. This invention seals the inner cavity of the water outlet pipe with a baffle. When in use, water fills the inner cavity of the sixth groove. A motor is installed on the outer surface of the third air pipe. The output shaft of the motor is connected to a fan blade. The fan blade is installed in the inner cavity of the third air pipe. When the fan blade rotates, it can drive the air in the inner cavity of the third air pipe to flow into the inner cavity of the third groove. The air in the inner cavity of the third groove will be squeezed into the inner cavity of the spray box, thereby realizing the circulation and cooling of hot air. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic cross-sectional view of the lower mold base according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the second link connection structure according to an embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the intermediate module according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the spray box connection structure according to an embodiment of the present invention; Figure 6 This is a schematic cross-sectional view of the water tank according to an embodiment of the present invention.
[0022] In the diagram: 1. Lower mold base; 11. Limiting plug; 12. Second groove; 13. Push plate; 131. First connecting rod; 132. Spring; 133. Second connecting rod; 134. Top plate; 135. Support plate; 136. Cylinder; 14. Third groove; 15. Fourth groove; 151. Limiting block; 2. Intermediate mold sleeve; 21. Limiting ring; 211. Limiting groove; 3. Upper mold cover; 4. Intermediate module; 41. Feed port; 42. Fifth groove; 43. First water pipe; 44. Water tank; 45. First water pump; 46. Water bucket; 47. Second water pipe; 48. Second water pump; 5. First air pipe; 51. Second air pipe; 52. U-shaped pipe; 53. Spray box; 54. Third water pump; 541. Second nozzle; 55. Water outlet pipe; 551. Sixth groove; 552. Baffle; 56. Water tank; 561. Baffle; 57. Third air pipe. Detailed Implementation
[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the scope of protection of the present invention.
[0024] Please see Figures 1 to 6 As shown, a casting mold for inner and outer coil winding cylinders for magnetic resonance includes a lower mold base 1, an intermediate mold sleeve 2 slidably mounted on the top of the lower mold base 1, an upper mold cover 3 slidably mounted on the top of the intermediate mold sleeve 2, an intermediate module 4 slidably mounted in the inner cavities of the lower mold base 1, the intermediate mold sleeve 2 and the upper mold cover 3, and a third groove 14 is provided in the inner cavities of the lower mold base 1, the intermediate mold sleeve 2 and the upper mold cover 3. It also includes a cooling mechanism for cooling the winding drum; The cooling mechanism includes a second air pipe 51, a U-shaped pipe 52, and a third air pipe 57. The second air pipe 51, U-shaped pipe 52, and third air pipe 57 are respectively connected to the inner cavity of the third groove 14. One end of the second air pipe 51 and U-shaped pipe 52 are fixedly connected to a spray box 53. One end of the third air pipe 57 is fixedly connected to a water removal box 56. The water removal box 56 is connected to the inner cavity of the spray box 53. A plurality of second nozzles 541 are fixedly installed in the inner cavity of the spray box 53. The tops of the plurality of second nozzles 541 are fixedly connected to a third water pump 54. The third water pump 54 is fixedly installed on the top of the spray box 53. A water inlet pipe is fixedly connected to one side of the third water pump 54. The intermediate module 4, upper mold cover 3, intermediate mold sleeve 2 and lower mold base 1 are all made of Cr12MoV mold steel and their surfaces are nitrided.
[0025] In existing technology, the material for making the winding spool is poured into the mold and allowed to cool naturally. However, natural cooling takes a long time and is prone to uneven cooling, where the outer side of the winding spool has cooled and formed while the inner material has not yet cooled. Uneven cooling during production can easily lead to internal stress in the formed winding spool, resulting in defects such as deformation and shrinkage marks, which affect dimensional stability.
[0026] In use, the lower mold base 1, intermediate mold sleeve 2, and upper mold cover 3 are first connected. Then, the intermediate module 4 is installed into the mold cavity formed by the lower mold base 1, intermediate mold sleeve 2, and upper mold cover 3. At this time, a winding cylinder-shaped cavity is formed between the lower mold base 1, intermediate mold sleeve 2, upper mold cover 3, and intermediate module 4. The raw material for casting the winding cylinder is poured into the cavity. After the raw material cools and solidifies, the winding cylinder is formed. After the raw material is poured into the cavity, the heat of the raw material will diffuse outwards, thus causing the inner cavity of the third groove 14 to also be at a high temperature. To reduce the cooling of the raw material... During the process, hot air is extracted from the inner cavities of multiple third grooves 14 through the second air pipe 51 and the U-shaped pipe 52 and discharged into the inner cavity of the spray box 53. Water is pumped by the third water pump 54 and sprayed out through the second nozzle 541 to cool the hot air. The cooled air returns to the inner cavity of the third groove 14 through the water removal tank 56. This can quickly remove the heat released by the raw material into the inner cavity of the third groove 14, thereby achieving rapid cooling of the raw material, reducing the cooling time of the winding bobbin, and avoiding internal stress after the winding bobbin is formed, which can cause defects such as deformation and shrinkage marks, affecting dimensional stability. The lower mold base 1, intermediate mold sleeve 2, upper mold cover 3 and intermediate module 4 are made of Cr12MoV mold steel and the surface is nitrided to facilitate the separation of the formed winding bobbin from the lower mold base 1, intermediate mold sleeve 2, upper mold cover 3 and intermediate module 4, and to facilitate the removal of the formed winding bobbin.
[0027] Furthermore, such as Figure 2 and Figure 3 As shown, the lower mold base 1 has a second groove 12 in its inner cavity, and a push plate 13 is slidably installed in the inner cavity of the second groove 12. The lower mold base 1 has a fourth groove 15 on its top, and a limit block 151 is fixedly installed in the inner cavity of the fourth groove 15. A first connecting rod 131 is fixedly installed at the bottom of the push plate 13. A spring 132 is wound around the outer surface of the first connecting rod 131. A second connecting rod 133 is fixedly installed at the bottom of the lower mold base 1. A support plate 135 is fixedly connected to the bottom of the second connecting rod 133. A cylinder 136 is fixedly connected to the top of the support plate 135. A top plate 134 is fixedly connected to the output end of the cylinder 136. The top plate 134 is slidably connected to the second connecting rod 133.
[0028] In use, after the winding cylinder is formed, in order to facilitate the separation of the winding cylinder from the inner wall of the lower mold base 1, the intermediate mold sleeve 2, and the upper mold cover 3, the winding cylinder is pushed by the push plate 13 to separate the winding cylinder from the inner wall of the mold, so that the operator can take out the formed winding cylinder. In use, the output end of the cylinder 136 extends to push the first connecting rod 131. The first connecting rod 131 drives the push plate 13 to slide in the inner cavity of the second groove 12, thereby achieving the purpose of pushing out the winding cylinder. After the winding cylinder is pushed out, the output end of the cylinder 136 retracts, and the elastic action of the spring 132 will drive the first connecting rod 131 to slide and drive the push plate 13 to slide into the inner cavity of the second groove 12.
[0029] Furthermore, such as Figure 2 As shown, a limiting ring 21 is slidably installed in the inner cavity of the fourth groove 15. The limiting ring 21 is fixedly connected to the intermediate mold sleeve 2. A limiting groove 211 is opened at the bottom of the limiting ring 21. The limiting block 151 is slidably installed in the inner cavity of the limiting groove 211.
[0030] In use, to facilitate the connection of the lower mold base 1, the intermediate mold sleeve 2, and the upper mold cover 3, the lower mold base 1, the intermediate mold sleeve 2, and the upper mold cover 3 are limited by the limiting block 151 and the limiting groove 211. The top of the intermediate mold sleeve 2 has the same structure as the top of the lower mold base 1, and the bottom of the upper mold cover 3 has the same structure as the bottom of the intermediate mold sleeve 2. In use, the lower mold base 1, the intermediate mold sleeve 2, and the upper mold cover 3 can be connected by installing the limiting block 151 in the inner cavity of the limiting groove 211 and the limiting ring 21 in the inner cavity of the fourth groove 15. The detachable structure design of the lower mold base 1, the intermediate mold sleeve 2, and the upper mold cover 3 makes it convenient for workers to remove the formed winding spool.
[0031] Furthermore, such as Figure 4As shown, a limiting plug 11 is fixedly installed in the inner cavity of the lower mold base 1, a first groove is opened at the bottom of the intermediate module 4, the limiting plug 11 is slidably installed in the inner cavity of the first groove, a feed port 41 is opened at the top of the intermediate module 4, and a fifth groove 42 is opened in the inner cavity of the intermediate module 4. The inner cavity of the fifth groove 42 is connected to a first water pipe 43 and a second water pump 48. One end of the first water pipe 43 is fixedly connected to a water tank 44. The bottom of the water tank 44 is fixedly connected to a first water pump 45. The bottom of the first water pump 45 is fixedly connected to a first nozzle. A water tank 46 is fixedly installed in the inner cavity of the intermediate module 4. The first nozzle is located in the inner cavity of the water tank 46. A second water pipe 47 is fixedly connected to the bottom of the second water pump 48. The second water pipe 47 is fixedly connected to the water tank 46.
[0032] In order to further reduce the cooling and forming time of the winding bobbin during use, the inner and outer sides of the winding bobbin need to be cooled simultaneously. A fourth water pump is connected to the first water pipe 43. The fourth water pump can draw water from the inner cavity of the fifth groove 42 to the inner cavity of the water tank 44 through the first water pipe 43. The water in the inner cavity of the water tank 44 is then drawn out by the first water pump 45 and sprayed out through the first nozzle. The sprayed water diffuses into the inner cavity of the water bucket 46. During use, a fan is installed on the top of the intermediate module 4. The fan blows air out of the inner cavity of the intermediate module 4 and can also... The water removes heat from the inner cavity of the intermediate module 4, while simultaneously causing the water to evaporate and dissipate heat within the inner cavity of the water tank 46. The cooled water is then drawn out by the second water pump 48 through the second water pipe 47 and discharged into the inner cavity of the fifth groove 42. The second water pump 48 is the same model and has the same power as the fourth water pump, thus ensuring that the inflow and outflow of water into the inner cavity of the fifth groove 42 are the same. This process enables the water to circulate and cool down. Furthermore, during the circulation process, the water absorbs and releases the heat released by the raw material of the winding bobbin, reducing the cooling and forming time of the winding bobbin and making the formed winding bobbin structure more compact.
[0033] Furthermore, such as Figure 6 As shown, a plurality of baffles 561 are fixedly installed in the inner cavity of the water tank 56, and the plurality of baffles 561 are distributed in a cross pattern. A water outlet pipe 55 is fixedly installed at the bottom of the spray box 53. A sixth groove 551 is opened in the inner cavity of the water outlet pipe 55, and a stop block 552 is fixedly installed in the inner cavity of the sixth groove 551.
[0034] In use, after hot air enters the inner cavity of the spray box 53, the water sprayed from the second nozzle 541 cools the hot air. The cooled air then enters the inner cavity of the desiccant 56. The air entering the desiccant 56 carries some moisture. To prevent moisture from entering the inner cavity of the third air pipe 57 and the third groove 14, several baffles 561 block the air. The air passes between adjacent baffles 561. During this process, the moisture in the air impacts the baffles 561 and remains at the bottom of the baffles 561, eventually forming water droplets. The water flows back into the inner cavity of the spray box 53. To prevent air from entering the inner cavity of the spray box 53 through the outlet pipe 55, the inner cavity of the outlet pipe 55 is blocked by the baffle 552. During use, the water will fill the inner cavity of the sixth groove 551. A motor is installed on the outer surface of the third air pipe 57. The motor output shaft is connected to a fan blade. The fan blade is installed in the inner cavity of the third air pipe 57. When the fan blade rotates, it can drive the air in the inner cavity of the third air pipe 57 to flow into the inner cavity of the third groove 14. The air in the inner cavity of the third groove 14 will be squeezed into the inner cavity of the spray box 53, thereby realizing the circulation and cooling of hot air.
[0035] Working principle: Hot air is extracted from the inner cavities of multiple third grooves 14 through the second air pipe 51 and the U-shaped pipe 52 and discharged into the inner cavity of the spray box 53. Water is pumped by the third water pump 54 and sprayed out through the second nozzle 541 to cool the hot air. The cooled air returns to the inner cavity of the third groove 14 after passing through the dewatering tank 56. This can quickly remove the heat released by the raw material into the inner cavity of the third groove 14, thereby achieving rapid cooling of the raw material, reducing the cooling time of the winding bobbin, and avoiding internal stress after the winding bobbin is formed, which can lead to defects such as deformation and shrinkage marks, affecting dimensional stability.
[0036] Water sprayed from the second nozzle 541 cools the hot air. The cooled air enters the inner cavity of the desiccant tank 56. The air entering the desiccant tank 56 carries some moisture. To prevent moisture from entering the inner cavity of the third air pipe 57 and the third groove 14, several baffles 561 block the air. The air passes between adjacent baffles 561. During this process, the moisture in the air impacts the baffles 561 and remains at the bottom of the baffles 561. After condensing into water droplets, it flows back into the inner cavity of the spray box 53. To prevent air from entering the spray box 53 through the water outlet pipe 55, the water outlet pipe 55 is blocked by a baffle 552. During use, water will fill the inner cavity of the sixth groove 551. A motor is installed on the outer surface of the third air pipe 57, and a fan blade is connected to the motor output shaft. The fan blade is installed in the inner cavity of the third air pipe 57. When the fan blade rotates, it can drive the air in the inner cavity of the third air pipe 57 to flow into the inner cavity of the third groove 14. The air in the inner cavity of the third groove 14 will be squeezed into the inner cavity of the spray box 53, thereby realizing the circulation and cooling of hot air.
[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.
Claims
1. A casting mold for inner and outer coil winding cylinders for magnetic resonance, comprising a lower mold base (1), an intermediate mold sleeve (2) slidably mounted on the top of the lower mold base (1), an upper mold cover (3) slidably mounted on the top of the intermediate mold sleeve (2), an intermediate module (4) slidably mounted in the inner cavities of the lower mold base (1), the intermediate mold sleeve (2) and the upper mold cover (3), and a third groove (14) is provided in the inner cavities of the lower mold base (1), the intermediate mold sleeve (2) and the upper mold cover (3); It also includes a cooling mechanism for cooling the winding drum; Its features are: The cooling mechanism includes a second air pipe (51), a U-shaped pipe (52), and a third air pipe (57). The second air pipe (51), the U-shaped pipe (52), and the third air pipe (57) are respectively connected to the inner cavity of the third groove (14). The second air pipe (51), the U-shaped pipe (52), and the third air pipe (57) are respectively connected to a spray box (53) at one end. The third air pipe (57) is connected to a water removal box (56) at one end. The water removal box (56) is connected to the inner cavity of the spray box (53). A number of second nozzles (541) are fixedly installed in the inner cavity of the spray box (53). A third water pump (54) is fixedly connected to the top of the number of second nozzles (541). The third water pump (54) is fixedly installed on the top of the spray box (53). A water inlet pipe is fixedly connected to one side of the third water pump (54).
2. The casting mold for an inner and outer coil winding cylinder for magnetic resonance according to claim 1, characterized in that: The lower mold base (1) has a second groove (12) in its inner cavity, and a push plate (13) is slidably installed in the inner cavity of the second groove (12). The lower mold base (1) has a fourth groove (15) on its top, and a limit block (151) is fixedly installed in the inner cavity of the fourth groove (15).
3. The casting mold for an inner and outer coil winding cylinder for magnetic resonance according to claim 2, characterized in that: The fourth groove (15) is slidably installed with a limiting ring (21), the limiting ring (21) is fixedly connected to the intermediate mold sleeve (2), the bottom of the limiting ring (21) is provided with a limiting groove (211), and the limiting block (151) is slidably installed in the inner cavity of the limiting groove (211).
4. The casting mold for an inner and outer coil winding cylinder for magnetic resonance according to claim 3, characterized in that: The bottom of the push plate (13) is fixedly installed with a first connecting rod (131), and a spring (132) is wound around the outer surface of the first connecting rod (131). The bottom of the lower mold base (1) is fixedly installed with a second connecting rod (133), and a support plate (135) is fixedly connected to the bottom of the second connecting rod (133). A cylinder (136) is fixedly connected to the top of the support plate (135), and a top plate (134) is fixedly connected to the output end of the cylinder (136). The top plate (134) is slidably connected to the second connecting rod (133).
5. The casting mold for an inner and outer coil winding cylinder for magnetic resonance according to claim 4, characterized in that: The lower mold base (1) has a fixed limit plug (11) installed in its inner cavity. The bottom of the intermediate module (4) has a first groove. The limit plug (11) is slidably installed in the inner cavity of the first groove. The top of the intermediate module (4) has a feed port (41). The inner cavity of the intermediate module (4) has a fifth groove (42).
6. The casting mold for an inner and outer coil winding cylinder for magnetic resonance according to claim 5, characterized in that: The inner cavity of the fifth groove (42) is connected to a first water pipe (43) and a second water pump (48). One end of the first water pipe (43) is fixedly connected to a water tank (44). The bottom of the water tank (44) is fixedly connected to a first water pump (45). The bottom of the first water pump (45) is fixedly connected to a first nozzle.
7. The casting mold for an inner and outer coil winding cylinder for magnetic resonance according to claim 5, characterized in that: The intermediate module (4) has a water tank (46) fixedly installed inside. The first nozzle is located inside the water tank (46). The bottom of the second water pump (48) is fixedly connected to a second water pipe (47), which is fixedly connected to the water tank (46).
8. The casting mold for an inner and outer coil winding cylinder for magnetic resonance according to claim 1, characterized in that: The inner cavity of the water removal tank (56) is fixedly equipped with several baffles (561), and the baffles (561) are distributed in a cross pattern.
9. The casting mold for an inner and outer coil winding cylinder for magnetic resonance according to claim 1, characterized in that: The bottom of the spray box (53) is fixedly installed with a water outlet pipe (55), and the inner cavity of the water outlet pipe (55) is provided with a sixth groove (551), and a stop block (552) is fixedly installed in the inner cavity of the sixth groove (551).
10. A casting mold for an inner and outer coil winding cylinder for magnetic resonance according to claim 7, characterized in that: The intermediate module (4), upper mold cover (3), intermediate mold sleeve (2) and lower mold base (1) are all made of Cr12MoV mold steel and the surface is nitrided.