Cooling and conveying device and neodymium iron boron casting piece processing system

Abstract

The utility model relates to the technical field of neodymium-iron-boron production, and discloses a cooling conveying device and a neodymium-iron-boron casting piece processing system.The cooling conveying device comprises a shell, a material conveying cavity is defined by the shell, and the shell is provided with a feeding port and a discharging port; the feeding port and the discharging port are both communicated with the material conveying cavity and are arranged close to the two opposite ends of the shell respectively, the shell is provided with an interlayer structure, and the interlayer structure forms a first cooling channel; the conveying mechanism is arranged corresponding to the material conveying cavity and communicates with the feeding port and the discharging port, and a second cooling channel is formed in the conveying mechanism; and the driving mechanism is in transmission connection with the conveying mechanism. Through the arrangement of the first cooling passage and the second cooling passage, neodymium iron boron casting pieces are fully cooled and radiated in the conveying process in the material conveying cavity, crystal structures of the neodymium iron boron casting pieces are prevented from changing, and therefore the quality of the obtained neodymium iron boron casting pieces is higher, and the performance of the obtained neodymium iron boron casting pieces is better.

Description

Technical Field

[0001] The utility model relates to the technical field of NdFeB production, in particular to a cooling and conveying device and a NdFeB casting sheet processing system. Background Art

[0002] In the production process of NdFeB castings, the requirements for cooling the NdFeB raw castings are getting higher and higher. In the existing process, the crushed NdFeB raw castings are mostly collected and put into a storage tank with a cooling water circulation to remove heat and cool it down. This form of cooling method has certain disadvantages. A large number of NdFeB raw castings are accumulated in a storage tank with a certain volume, and the heat is unevenly dissipated. The heat in the middle cannot be taken away by the cooling circulating water around the storage tank. The failure to cool down within a certain period of time will cause changes in the crystal structure inside the NdFeB raw castings, thereby affecting the performance of the product. Utility Model Content

[0003] In view of this, the utility model provides a cooling and conveying device and a NdFeB casting sheet processing system to solve the problem of poor cooling and heat dissipation effect of NdFeB casting sheets through a storage tank with condensed water in the existing process.

[0004] In the first aspect, the utility model provides a cooling and conveying device, comprising: an outer shell, the outer shell encloses a material conveying cavity, the outer shell is provided with a feed port and a discharge port, the feed port and the discharge port are both connected to the material conveying cavity and are respectively arranged near the opposite ends of the outer shell, the outer shell has a sandwich structure, and the sandwich structure forms a first cooling passage; a conveying mechanism, which is arranged corresponding to the material conveying cavity and connected to the feed port and the discharge port, and a second cooling passage is formed in the conveying mechanism; a driving mechanism, which is transmission-connected to the conveying mechanism.

[0005] Beneficial effect: By setting up the first cooling passage and the second cooling passage, the NdFeB casting sheet can be fully cooled and dissipated during the transportation in the material conveying cavity, avoiding changes in the crystal structure of the NdFeB casting sheet, so that the obtained NdFeB casting sheet has higher quality and better performance.

[0006] In an optional embodiment, a first water inlet and a first water outlet are further provided on the shell, and the first water inlet and the first water outlet are both connected to the first cooling passage.

[0007] Beneficial effect: By setting the first water inlet and the first water outlet, the cooling water entering the first cooling passage can be circulated, avoiding the water temperature in the first cooling passage from rising and affecting the cooling effect, which is beneficial to fully cooling and dissipating the heat of the NdFeB casting.

[0008] In an optional embodiment, the conveying mechanism includes a conveying shaft and conveying blades, the second cooling passage is formed inside the conveying shaft, the conveying blades are connected to the outer wall of the conveying shaft, the conveying blades are axially spirally arranged along the outer wall of the conveying shaft, the conveying shaft is transmission-connected to the driving mechanism, two conveying shafts are provided, each of the conveying shafts is provided with the conveying blades, the two conveying shafts are arranged in opposite rotation directions, and the two conveying blades are arranged in opposite spiral directions.

[0009] Beneficial effect: By setting the rotation direction of the conveying shaft and the rotation direction of the conveying blades in opposite directions, the NdFeB casting sheet can be transported from the feed port to the discharge port. The overall mechanical structure is simple and the transportation efficiency is high.

[0010] In an optional embodiment, sealing openings are provided at both ends of the shell, and the end of the conveying shaft extends out of the sealing openings. The cooling and conveying device also includes a sealing plate and an oil seal. The sealing plate is arranged corresponding to the sealing opening. Two oil seals are arranged. The outer rings of the two oil seals are respectively connected to the sealing plates, and the inner rings of the two oil seals are respectively connected to the two conveying shafts.

[0011] Beneficial effect: The oil seal is provided to seal the conveying shaft and the sealing plate, thereby preventing air from entering the conveying cavity through the gap between the sealing plate and the conveying shaft to affect the performance of the NdFeB casting.

[0012] In an optional embodiment, the cooling and conveying device also includes a first sealing sleeve and a second sealing sleeve, and the first sealing sleeve and the second sealing sleeve are respectively arranged on the outer sides of the two ends of the shell, the first end of the conveying shaft is inserted into the first end of the first sealing sleeve, and the second end of the first sealing sleeve forms a second water inlet, and the second water inlet is connected to the second cooling passage, the second end of the conveying shaft is inserted into the first end of the second sealing sleeve, and the second end of the second sealing sleeve forms a second water outlet, and the second water outlet is connected to the second cooling passage.

[0013] Beneficial effect: By setting the second water inlet and the second water outlet, the water entering the second cooling passage can be circulated, avoiding the water temperature in the second cooling passage from rising and affecting the cooling effect, which is beneficial to fully cooling and dissipating the NdFeB casting.

[0014] In an optional embodiment, the driving mechanism includes a driving motor, a chain, a first sprocket, a second sprocket and a gear. The first sprocket and the second sprocket are connected by the chain transmission. The driving end of the driving motor is connected to the first sprocket transmission. The second sprocket is sleeved on the conveying shaft. Two gears are provided. The two gears are correspondingly sleeved on the two conveying shafts, and the two gears are meshingly arranged.

[0015] Beneficial effects: The first sprocket is driven by a driving motor, and the second sprocket is rotated under the transmission of the chain, thereby driving the rotation of the conveying shaft and the gear and realizing the transportation of the NdFeB casting. The driving mechanism has a simple structure and higher transmission efficiency. The meshing setting of the two gears also further improves the synchronization of the rotation of the two conveying shafts.

[0016] In an optional embodiment, an observation window and a maintenance port are provided on the top of the shell, and a plurality of the observation windows and the maintenance ports are provided. The plurality of the observation windows are spaced apart along the length direction of the shell, and the plurality of the maintenance ports are spaced apart along the length direction of the shell.

[0017] Beneficial effects: By setting up the observation window and the maintenance port, it is convenient to observe and maintain the operation of the conveying mechanism, which is conducive to timely discovery and maintenance of problems and helps to improve the convenience of maintenance.

[0018] In an optional embodiment, the cooling and conveying device further includes a feed flange and a discharge flange, wherein both the feed flange and the discharge flange are connected to the outer shell, the feed flange is connected to the feed port, and the discharge flange is connected to the discharge port.

[0019] In an optional embodiment, the cooling and conveying device also includes a maintenance door, which can be opened and closed corresponding to the maintenance port, and a first fixed seat and a second fixed seat are arranged on the periphery of the maintenance port, one end of the first fixed seat is connected to the outer shell, and the other end of the first fixed seat abuts against the maintenance door, one end of the second fixed seat is connected to the outer shell, and the other end of the second fixed seat is connected to the maintenance door.

[0020] Beneficial effects: By setting up a maintenance door, the maintenance port can be kept closed when maintenance is not needed, preventing construction workers from putting their hands into the material conveying chamber and causing personal danger. By setting up a maintenance door, the material conveying chamber can be kept in a vacuum state during the operation of the cooling and conveying device, preventing air from affecting the performance of the NdFeB casting.

[0021] In a second aspect, the utility model also provides a NdFeB casting sheet processing system, including the cooling and conveying device described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic structural diagram of a cooling and conveying device according to an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the conveying mechanism of the cooling conveying device according to an embodiment of the utility model;

[0025] Figure 3 It is a schematic diagram of the structure of the driving mechanism of the cooling conveying device according to an embodiment of the utility model;

[0026] Figure 4 It is a schematic structural diagram of the sandwich structure of the outer shell of the cooling and conveying device according to an embodiment of the utility model;

[0027] Figure 5 for Figure 1 A is an enlarged view of the middle image.

[0028] Description of reference numerals:

[0029] 1. Shell; 101. Shell body; 102. Cover plate; 1021. Observation window; 1022. Maintenance port; 103. First water inlet; 104. First water outlet; 105. Feeding port; 106. Sandwich structure; 107. Material conveying cavity; 108. Sealing port; 2. Conveying mechanism; 201. Conveying shaft; 202. Conveying blades; 3. Driving mechanism; 301. Driving motor; 302. Chain; 303. First sprocket; 304. Second sprocket; 305 , gear; 4, sealing plate; 5, oil seal; 6, first sealing sleeve; 601, second water inlet; 7, second sealing sleeve; 701, second water outlet; 8, protective cover; 9, earring seat; 10, bolt; 11, maintenance door; 12, feed flange; 13, discharge flange; 14, first fixed seat; 1401, first fixed part; 1402, first rotating part; 15, second fixed seat; 1501, second fixed part; 1502, second rotating part; 16, fastener. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0031] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.

[0032] According to an embodiment of the present utility model, on the one hand, as Figure 1 As shown, a cooling and conveying device is provided for conveying NdFeB casting sheets, comprising: a shell 1, a conveying mechanism 2 and a driving mechanism 3. The shell 1 encloses a material conveying cavity 107, and the shell 1 is provided with a feed port 105 and a discharge port. The feed port 105 and the discharge port are both connected to the material conveying cavity 107 and are respectively arranged near the opposite ends of the shell 1. The shell 1 has a sandwich structure 106, and the sandwich structure 106 forms a first cooling passage. The conveying mechanism 2 is arranged corresponding to the material conveying cavity 107 and is connected to the feed port 105 and the discharge port, and a second cooling passage is formed in the conveying mechanism 2. The driving mechanism 3 is transmission-connected to the conveying mechanism 2.

[0033] By setting up the first cooling passage and the second cooling passage, the NdFeB casting sheet can be fully cooled and dissipated during transportation in the material conveying chamber 107, avoiding changes in the crystal structure of the NdFeB casting sheet, thereby making the obtained NdFeB casting sheet higher in quality and better in performance.

[0034] Specifically, in this embodiment, Figure 1 and Figure 4 As shown, the housing 1 includes a cover plate 102 and a housing body 101. The top of the housing body 101 is open, the cover plate 102 is connected to the top of the housing body 101 and covers the opening, the feed port 105 is provided on the cover plate 102, and the discharge port is provided on the housing body 101. A plurality of earring seats 9 are arranged at intervals on both sides of the housing body 101, one end of the earring seat 9 is connected to the housing body 101, and the other end of the earring seat 9 is provided with a bolt 10, the bolt 10 passes through the other end of the earring seat 9 and is pressed against the cover plate 102, so that the housing body 101 and the cover plate 102 are fixedly connected.

[0035] In this embodiment, the sandwich structure 106 is arranged corresponding to the shell body 101. Specifically, the shell body 101 includes an inner shell and an outer shell 1, the outer shell 1 is sleeved outside the inner shell and arranged at intervals, the inner shell and the outer shell 1 form a sandwich structure 106, and a first cooling passage is formed between the inner shell and the outer shell 1.

[0036] Of course, in other alternative embodiments, the cover plate 102 may also be provided with a sandwich structure 106 , and cooling circulating water may be introduced into the sandwich structure 106 to further cool and dissipate the NdFeB casting in the material conveying cavity 107 .

[0037] In one embodiment, Figure 1 As shown, the housing 1 is also provided with a first water inlet 103 and a first water outlet 104, and the first water inlet 103 and the first water outlet 104 are both connected to the first cooling passage. By providing the first water inlet 103 and the first water outlet 104, the cooling water entering the first cooling passage can be circulated, so as to avoid the water temperature in the first cooling passage from rising and affecting the cooling effect, which is beneficial to fully cooling and dissipating the heat of the NdFeB casting.

[0038] Specifically, the first water inlet 103 and the first water outlet 104 are both connected to a cooling circulating water pipeline. Cooling water is introduced through the first water inlet 103 and discharged through the first water outlet 104, thereby realizing the circulation of cooling water in the first cooling passage and cooling and heat dissipation.

[0039] In one embodiment, Figure 2 As shown, the conveying mechanism 2 includes a conveying shaft 201 and a conveying blade 202. A second cooling passage is formed in the shaft of the conveying shaft 201. The conveying blade 202 is connected to the outer wall of the conveying shaft 201. The conveying blade 202 is spirally arranged along the axial direction of the outer wall of the conveying shaft 201. The conveying shaft 201 is transmission-connected to the driving mechanism 3. Two conveying shafts 201 are provided. Each conveying shaft 201 is provided with a conveying blade 202. The two conveying shafts 201 rotate in opposite directions, and the spiral directions of the two conveying blades 202 are opposite. By setting the rotation directions of the conveying shaft 201 and the rotation directions of the conveying blades 202 in opposite directions, the NdFeB casting sheet can be transported from the feed port 105 to the discharge port. The overall mechanical structure is simple and the transportation efficiency is high.

[0040] Specifically, the thickness of the conveying blades 202 on the two conveying shafts 201 is set to be consistent, so that the two conveying blades 202 drive the material transportation at a consistent speed, avoiding material blockage and affecting the quality and performance of the material.

[0041] Specifically, the two conveying shafts 201 are horizontally arranged at the same height to prevent materials from falling during the conveying process, causing waste and reducing production efficiency.

[0042] In one embodiment, Figure 1 and Figure 4As shown, both ends of the housing 1 are provided with sealing openings 108, and the end of the conveying shaft 201 extends out of the sealing openings 108. The cooling conveying device further comprises a sealing plate 4 and an oil seal 5. The sealing plate 4 is provided corresponding to the sealing openings 108, and two oil seals 5 are provided. The outer rings of the two oil seals 5 are respectively connected to the sealing plates 4, and the inner rings of the two oil seals 5 are respectively connected to the two conveying shafts 201. The conveying shaft 201 and the sealing plate 4 are sealed by providing the oil seal 5, thereby preventing air from entering the conveying cavity from the gap between the sealing plate 4 and the conveying shaft 201 to affect the performance of the NdFeB casting.

[0043] In one embodiment, Figure 1 As shown, the cooling and conveying device also includes a first sealing sleeve 6 and a second sealing sleeve 7, which are respectively arranged on the outer sides of the two ends of the housing 1, the first end of the conveying shaft 201 is inserted into the first end of the first sealing sleeve 6, and the second end of the first sealing sleeve 6 forms a second water inlet 601, and the second water inlet 601 is connected to the second cooling passage, and the second end of the conveying shaft 201 is inserted into the first end of the second sealing sleeve 7, and the second end of the second sealing sleeve 7 forms a second water outlet 701, and the second water outlet 701 is connected to the second cooling passage. By setting the second water inlet 601 and the second water outlet 701, the water entering the second cooling passage can be circulated, so as to avoid the water temperature in the second cooling passage from rising and affecting the cooling effect, which is conducive to fully cooling and dissipating the NdFeB casting.

[0044] Specifically, the second water inlet 601 and the second water outlet 701 are both connected to a cooling circulating water pipeline. Cooling water is introduced through the second water inlet 601 and discharged through the second water outlet 701, thereby realizing the circulation of cooling water in the second cooling passage and cooling and heat dissipation. The cooling circulating water pipeline and the conveying shaft 201 are sealed by providing a sealing sleeve to prevent the cooling water from flowing out and damaging the cooling and conveying device.

[0045] Preferably, the second water inlet 601 and the second water outlet 701 are configured as quick-release interfaces. The cooling circulating water pipeline can be fixed by simply inserting the cooling circulating water pipeline into the quick-release interface. When it is not in use, the cooling circulating water pipeline can be pulled out, which is convenient and quick.

[0046] It should be noted that the cooling circulating water in the first cooling passage and the second cooling passage flows uninterruptedly, and the crushed high-temperature NdFeB primary casting flakes are continuously flipped under the drive of the conveying blades 202 on the two conveying shafts 201. The NdFeB primary casting flakes dissipate heat relatively evenly during the flipping process, and the dissipated heat is fully taken away by the cooling circulating water. Within the normal operating temperature protection range, the crushed high-temperature NdFeB primary casting flakes can be continuously cooled down for production, the cooling production cycle is shorter, the production efficiency is higher, and the product quality consistency is better.

[0047] It should be noted that a protective cover 8 is arranged between the first sealing sleeve 6 and the sealing plate 4, and a protective cover 8 is arranged between the second sealing sleeve 7 and the sealing plate 4. The protective cover 8 covers the conveying shaft 201 and is connected and fixed to the first sealing plate 4 and the second sealing plate 4. The protective cover 8 is arranged to prevent the construction workers from putting their hands between the two conveying shafts 201 during the rotation of the conveying shaft 201, which may cause danger. At the same time, bearings are arranged inside the protective cover 8, the first sealing sleeve 6 and the second sealing sleeve 7, which are used to support and fix the conveying shaft 201 to avoid large deviation of the conveying shaft 201 and affect the transportation of NdFeB castings.

[0048] In one embodiment, Figure 3 As shown, the driving mechanism 3 includes a driving motor 301, a chain 302, a first sprocket 303, a second sprocket 304 and a gear 305. The first sprocket 303 and the second sprocket 304 are connected by the chain 302. The driving end of the driving motor 301 is connected by the first sprocket 303. The second sprocket 304 is sleeved on the conveying shaft 201. Two gears 305 are provided. The two gears 305 are correspondingly sleeved on the two conveying shafts 201, and the two gears 305 are meshed. The first sprocket 303 is driven by the driving motor 301, and the second sprocket 304 is rotated under the transmission of the chain 302, thereby driving the rotation of the conveying shaft 201 and the gear 305 and realizing the transportation of the NdFeB casting sheet. The driving mechanism 3 has a simple structure and a higher transmission efficiency. The meshing arrangement of the two gears 305 also further improves the synchronization of the rotation of the two conveying shafts 201.

[0049] It should be noted that, according to calculations based on actual conditions, using a sprocket to drive the conveyor shaft 201 to rotate has a finer transmission ratio and higher transmission efficiency than directly using the gear 305 to drive the conveyor shaft 201 to rotate. At the same time, when the drive mechanism 3 needs to be replaced, the removal of the sprocket is more convenient and quicker than the removal of the gear 305, and a lot of time will not be wasted.

[0050] In one embodiment, Figure 4 As shown, an observation window 1021 and a maintenance port 1022 are provided on the top of the housing 1, and a plurality of observation windows 1021 and maintenance ports 1022 are provided, and the plurality of observation windows 1021 are provided at intervals along the length direction of the housing 1, and the plurality of maintenance ports 1022 are provided at intervals along the length direction of the housing 1. By providing the observation window 1021 and the maintenance port 1022, it is convenient to observe and maintain the operation of the conveying mechanism 2, which is conducive to timely discovering problems and performing maintenance, and is conducive to improving the convenience of maintenance.

[0051] Specifically, in this embodiment, the observation window 1021 and the maintenance port 1022 are provided on the cover plate 102 .

[0052] In one embodiment, Figure 1 As shown, the cooling and conveying device further includes a feed flange 12 and a discharge flange 13, both of which are connected to the housing 1, the feed flange 12 is connected to the feed port 105, and the discharge flange 13 is connected to the discharge port.

[0053] In one embodiment, Figure 1 As shown, the cooling and conveying device further includes a maintenance door 11, which can be opened and closed corresponding to the maintenance port 1022. The periphery of the maintenance port 1022 is provided with a first fixing seat 14 and a second fixing seat 15, one end of the first fixing seat 14 is connected to the housing 1, and the other end of the first fixing seat 14 abuts against the maintenance door 11, one end of the second fixing seat 15 is connected to the housing 1, and the other end of the second fixing seat 15 is connected to the maintenance door 11. By providing the maintenance door 11, it is avoided that the maintenance port 1022 is in a closed state when maintenance is not required, and it is prevented that the construction personnel put their hands into the material conveying chamber 107 to cause personal danger. By providing the maintenance door 11, the material conveying chamber 107 can be in a vacuum state during the operation of the cooling and conveying device, and the air is prevented from affecting the performance of the NdFeB casting sheet.

[0054] Specifically, Figure 5 As shown, the first fixed seat 14 includes a first fixed portion 1401 and a first rotating portion 1402, one end of the first fixed portion 1401 is fixedly connected to the cover plate 102, one end of the first rotating portion 1402 is hinged to the other end of the first fixed portion 1401, the fastener 16 passes through the other end of the first rotating portion 1402 and abuts against the maintenance door 11, the maintenance door 11 is rotatably arranged, and the rotating end of the maintenance door 11 is connected to the second fixed seat 15, the second fixed seat 15 includes a second fixed portion 1501 and a second rotating portion 1502, one end of the second fixed portion 1501 is fixedly connected to the cover plate 102, and one end of the second rotating portion 1502 is hinged to the second fixed portion 1 The other end of 501 is hinged, and the maintenance door 11 is connected to the other end of the second rotating part 1402. By loosening the fastener 16 and rotating the first rotating part 1402 in the direction away from the maintenance door 11, the maintenance door 11 can be rotated along the hinge position of the second rotating part 1502 and the second fixed part 1501 in the direction away from the maintenance opening 1022, and the maintenance door 11 is opened; after the maintenance door 11 is rotated in the direction close to the maintenance opening 1022 until the maintenance opening 1022 is completely blocked, the first rotating part 1402 drives the fastener 16 to rotate in the direction of the maintenance door 11 and once again tightly abuts against the maintenance door 11, and the maintenance door 11 is completely closed.

[0055] According to an embodiment of the present utility model, on the other hand, a NdFeB casting sheet processing system is provided, comprising the above-mentioned cooling and conveying device.

[0056] Specifically, the feed flange 12 is connected to the discharge port of the crushing process of the NdFeB casting processing system, and the discharge flange 13 is connected to the mobile cooling storage tank in the NdFeB casting processing system. When the NdFeB casting fills the cooling storage tank, it is transported to the designated area for secondary cooling. At the same time, a new cooling storage tank is moved to the discharge port and connected to the discharge flange 13.

[0057] When using the cooling and conveying device of this embodiment, first, the cooling circulating water is introduced into the first cooling passage through the first water inlet 103, and the cooling circulating water is introduced into the second cooling passage through the second water inlet 601; then, the feed flange 12 on the cover plate 102 is connected to the drop port of the previous crushing process, and the discharge flange 13 is connected to the cooling storage tank, and the crushed high-temperature NdFeB primary casting flakes enter the material conveying cavity 107 through the feed flange 12; thereafter, the driving motor 301 drives the first sprocket 303 to rotate, the first sprocket 303 drives the second sprocket 304 to rotate through the chain 302, and the second sprocket 304 drives the gear 305 to rotate, and the two gears 305 are meshed and arranged to make the two conveying shafts 201 rotate in opposite directions, thereby conveying the crushed high-temperature NdFeB primary casting flakes to the position of the discharge flange 13; finally, after the cooling storage tank connected to the discharge flange 13 is fully collected and cooled to a certain degree, it is moved to a designated area for secondary cooling.

[0058] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A cooling and conveying device, characterized in that: include: A shell (1), the shell (1) encloses a material conveying cavity (107), the shell (1) is provided with a feed port (105) and a discharge port, the feed port (105) and the discharge port are both connected to the material conveying cavity (107) and are respectively arranged near opposite ends of the shell (1), the shell (1) has a sandwich structure (106), and the sandwich structure (106) forms a first cooling passage; A conveying mechanism (2) is arranged corresponding to the material conveying cavity (107) and is connected to the feed port (105) and the discharge port, and a second cooling passage is formed in the conveying mechanism (2); A driving mechanism (3) is drivingly connected to the conveying mechanism (2); The conveying mechanism (2) comprises a conveying shaft (201) and a conveying blade (202); the second cooling passage is formed inside the conveying shaft (201); the conveying blade (202) is connected to the outer wall of the conveying shaft (201); the conveying blade (202) is axially spirally arranged along the outer wall of the conveying shaft (201); the conveying shaft (201) is transmission-connected to the driving mechanism (3); two conveying shafts (201) are provided, each of the conveying shafts (201) is provided with the conveying blade (202); the two conveying shafts (201) rotate in opposite directions, and the two conveying blades (202) spiral in opposite directions.

2. The cooling conveying device according to claim 1, characterized in that: The housing (1) is also provided with a first water inlet (103) and a first water outlet (104); the first water inlet (103) and the first water outlet (104) are both connected to the first cooling passage.

3. The cooling conveying device according to claim 1, characterized in that: Both ends of the shell (1) are provided with sealing openings (108), and the end of the conveying shaft (201) extends out of the sealing opening (108). The cooling conveying device also includes a sealing plate (4) and an oil seal (5). The sealing plate (4) is arranged corresponding to the sealing opening (108), and two oil seals (5) are arranged. The outer rings of the two oil seals (5) are respectively connected to the sealing plates (4), and the inner rings of the two oil seals (5) are respectively connected to the two conveying shafts (201).

4. The cooling conveying device according to claim 1, characterized in that: The cooling and conveying device further comprises a first sealing sleeve (6) and a second sealing sleeve (7), wherein the first sealing sleeve (6) and the second sealing sleeve (7) are respectively arranged on the outer sides of both ends of the shell (1), the first end of the conveying shaft (201) is inserted into the first end of the first sealing sleeve (6), the second end of the first sealing sleeve (6) forms a second water inlet (601), and the second water inlet (601) is connected to the second cooling passage, the second end of the conveying shaft (201) is inserted into the first end of the second sealing sleeve (7), the second end of the second sealing sleeve (7) forms a second water outlet (701), and the second water outlet (701) is connected to the second cooling passage.

5. The cooling conveying device according to claim 1, characterized in that: The driving mechanism (3) comprises a driving motor (301), a chain (302), a first sprocket (303), a second sprocket (304) and a gear (305); the first sprocket (303) and the second sprocket (304) are connected in transmission via the chain (302); the driving end of the driving motor (301) is connected in transmission with the first sprocket (303); the second sprocket (304) is sleeved on the conveying shaft (201); two gears (305) are provided; the two gears (305) are correspondingly sleeved on the two conveying shafts (201); and the two gears (305) are meshed.

6. The cooling conveying device according to claim 1 or 2, characterized in that: An observation window (1021) and a maintenance port (1022) are provided on the top of the shell (1), and a plurality of the observation windows (1021) and the maintenance port (1022) are provided. The plurality of observation windows (1021) are arranged at intervals along the length direction of the shell (1), and the plurality of maintenance ports (1022) are arranged at intervals along the length direction of the shell (1).

7. The cooling conveying device according to claim 1 or 2, characterized in that: The cooling and conveying device also includes a feed flange (12) and a discharge flange (13), wherein the feed flange (12) and the discharge flange (13) are both connected to the outer shell (1), the feed flange (12) is connected to the feed port (105), and the discharge flange (13) is connected to the discharge port.

8. The cooling conveying device according to claim 6, characterized in that: The cooling and conveying device also includes a maintenance door (11), and the maintenance door (11) can be opened and closed corresponding to the maintenance port (1022). The outer periphery of the maintenance port (1022) is provided with a first fixed seat (14) and a second fixed seat (15), one end of the first fixed seat (14) is connected to the outer shell (1), and the other end of the first fixed seat (14) is in contact with the maintenance door (11), one end of the second fixed seat (15) is connected to the outer shell (1), and the other end of the second fixed seat (15) is connected to the maintenance door (11).

9. A NdFeB casting sheet processing system, characterized in that: The cooling conveying device comprises the cooling conveying device according to any one of claims 1 to 8.

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