Heat dissipation mold and method for laminated iron core after hot melting

Abstract

The present invention discloses a heat dissipation die for laminated iron cores after hot melting. The die comprises, from top to bottom, an upper fixed plate, a water-cooled plate, a manual connecting mechanism, an air-cooled plate, and a lower fixed plate. An air-cooling channel is provided through the centers of these five components. The air-cooling channel is provided at the centers of the upper fixed plate, the water-cooled plate, the middle adjustment plate, the air-cooled plate, and the lower fixed plate. The advantage is that the water-cooled plate serves to block the temperature transfer from the upper heating device. At the same time, the cooling water in the cooling plate flows into the air-cooled plate, achieving a physical cooling effect on the air-cooled plate, further reducing the airflow temperature and improving the cooling efficiency of the punching sheet.

Description

Technical Field

[0001] The present invention relates to the field of molds, and in particular to a mold and method for dissipating heat after hot melting of a laminated iron core. Background Art

[0002] In the prior art, the invention patent with the authorization announcement number "CN106716796B" discloses a method for forming the stator and rotor in the electric motor, that is, the motor stator and rotor are punched into sheets by stamping, and then rotated and stacked, and then the adhesive layer compounded on the surface of the sheets is melted by heating. This patent adopts a two-stage heating method, that is, a method of pre-melting and shaping by heating, and a method of secondary heating and curing to fix the stacked sheets, but the two-stage heating takes a long time. At the same time, with the development of adhesive materials, our company disclosed a single high-temperature heating mold using a ceramic heating ring in 2018, which can achieve bonding between the sheets. However, due to the high temperature rise and the long cooling time, a method different from traditional air cooling is required. Therefore, a mold is needed that is used below the heating device without affecting the normal heating at the top and accelerating the cooling below. Summary of the Invention

[0003] The first object of the present invention is to provide a heat dissipation mold for laminated iron cores after hot melting, which has the effect of reducing temperature influence and shortening cooling time.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions: a heat dissipation mold for laminated iron core after hot melting, which comprises

[0005] An upper fixing plate, wherein a connection area is provided on the top of the upper fixing plate, and the upper fixing plate is sealingly provided on the top of the water-cooling plate;

[0006] A water-cooled plate, wherein the upper layer of the water-cooled plate is provided with a water inlet channel, the lower layer of the water-cooled plate is provided with a water outlet channel, the side of the water-cooled plate is provided with a water inlet hole and a water outlet hole, the water inlet hole is connected to the water inlet channel, the water outlet hole is connected to the water outlet channel, and a flow hole connecting the water inlet channel and the water outlet channel is provided through the interior of the water-cooled plate in the height direction;

[0007] The manual connecting mechanism includes a middle adjusting plate, an adjusting groove, an upper connecting hole, a lower connecting hole and a rotating tube, the top of the middle adjusting plate is sealed with the bottom of the water-cooling plate, the bottom of the middle adjusting plate is sealed with the top of the air-cooling plate, the adjusting groove is arranged on the side of the middle adjusting plate, the upper connecting hole passes through the water-cooling plate in the height direction and connects the water inlet waterway and the water outlet waterway, the lower connecting hole passes through the air-cooling plate in the height direction and connects the cooling chamber and the air intake chamber, and a water inlet channel and a water return channel are arranged in the rotating tube, the water inlet channel and the water return channel pass through the axial arrangement of the rotating tube, the water inlet channel is communicated with the water inlet waterway and the cooling chamber respectively, and the water return channel is communicated with the water outlet waterway and the cooling chamber respectively;

[0008] An air-cooling plate, wherein the top of the air-cooling plate is inwardly recessed to form a cooling cavity, the bottom of the air-cooling plate is upwardly recessed to form an air inlet cavity, the cooling cavity and the air inlet cavity are concentrically arranged, the cooling cavity is located on the inner side of the air inlet cavity, and the air-cooling plate is provided with an air inlet and an air outlet, the air inlet penetrates radially along the air-cooling plate to the outer side of the air-cooling plate, and the air outlet penetrates radially along the air-cooling plate to the inner side of the air-cooling plate;

[0009] A lower fixed plate is arranged at the bottom of the air cooling plate;

[0010] The air cooling channel is arranged in the center of the upper fixed plate, the water cooling plate, the middle adjustment plate, the air cooling plate and the lower fixed plate.

[0011] Preferably, the air cooling channel is provided with a sleeve at the position of the air cooling plate, the inner wall of the sleeve is provided with a lower inclined hole connected to the air outlet, the sleeve is rotatably connected to the bottom of the air cooling channel, the bottom of the sleeve extends outside the air cooling channel to form a rotating ring, the outer circumferential surface of the rotating ring is provided with an outer gear ring, and the bottom of the rotating tube is provided with a gear meshing with the outer gear ring.

[0012] By adopting the above technical solution, during the process of rotating the rotating tube, the driving gear rotates, thereby driving the sleeve to rotate, thereby changing the size and direction of the airflow.

[0013] Preferably, one end of the lower inclined hole corresponds to the air outlet, and the other end of the lower inclined hole corresponds to the air cooling channel. An upper inclined hole is arranged between adjacent lower inclined holes, and one end of the upper inclined hole corresponds to the air outlet, and the other end of the upper inclined hole is inclined upward and corresponds to the air cooling channel.

[0014] By adopting the above technical solution, the staggered upper inclined holes and lower inclined holes can be switched by rotating the tube, thereby switching the state of cooling the punch and the state of cooling the upper heating device.

[0015] Preferably, the water inlet water channel and the water outlet water channel are arranged in a spiral line, the rotation directions of the water inlet water channel and the water outlet water channel are opposite, the end of the water inlet water channel and the head end of the water outlet water channel overlap with each other on the orthographic projection surface, and the flow hole is arranged at the overlapping position; the head end of the water inlet water channel and the end of the water outlet water channel overlap with each other on the orthographic projection surface, and the upper connecting hole is arranged at the overlapping position; the flow hole is arranged at a position close to the center of the water cooling plate, and the upper connecting hole is arranged at a position close to the outside of the water cooling plate.

[0016] By adopting the above technical solution, the cooling effect of the water-cooling plate position is improved, and the punching sheets passing through have a pre-cooling effect. At the same time, this structure can ensure that the water inlet and outlet holes are located outside the water-cooling plate, and at the same time, the overall water cooling effect of the water-cooling plate is better.

[0017] Preferably, the water inlet waterway is arranged to penetrate upward along the height direction of the water-cooling plate, and the water outlet waterway is arranged to penetrate downward along the height direction of the water-cooling plate. An outer sealing groove is provided on the outer side of the top and the outer side of the bottom of the water-cooling plate, and an inner sealing groove is provided on the inner side of the top and the inner side of the bottom of the water-cooling plate. The outer sealing groove and the inner sealing groove are arranged concentrically with the air-cooling channel, and upper sealing rings are provided in the outer sealing groove and the inner sealing groove.

[0018] By adopting the above technical solution, the cooling effect on the top and bottom of the water-cooled plate is improved.

[0019] Preferably, a partition is provided between the water inlet channel and the return water channel, and the partition extends along the height direction of the rotating tube. The water inlet channel includes a first water inlet and a first water outlet. The first water inlet is arranged at the upper part of the side surface of the rotating tube and is connected to the water inlet channel. The first water outlet is arranged at the lower part of the side surface of the rotating tube and is connected to the water inlet channel. The water outlet channel includes a second water inlet and a second water outlet. The second water inlet is coaxially arranged with the first water outlet. The second water outlet is located at the lower part of the side surface of the rotating tube and is lower than the first water inlet.

[0020] By adopting the above technical solution, the setting of the water inlet waterway and the water outlet waterway can be realized in the same pipeline, and the flow rate adjustment and opening and closing can be realized by cooperating with the water inlet waterway and the water outlet waterway.

[0021] Preferably, the air-cooled plate is provided with a guide platform in the cooling cavity, the cooling cavity is annular, one side of the guide platform is connected to and corresponds to the first water outlet, and the other side of the guide platform is connected to and corresponds to the second water inlet.

[0022] By adopting the above technical solution, the refrigeration liquid is ensured to enter the cooling cavity from one side of the guide platform and flow back from the other side of the guide platform, thereby improving the cooling effect. At the same time, when the rotating tube is rotated, the first water outlet and the second water inlet can be closed.

[0023] Preferably, the rotating tube is provided with a rotating handle in the adjusting groove, the rotating handle is provided with a scale, the rotating handle is in a truncated cone shape, and the outer side of the rotating handle is provided with a frosted surface.

[0024] By adopting the above technical solution, the rotating handle makes it easy to observe and control the rotation angle of the rotating tube, while synchronously adjusting the size of the water flow and the direction and size of the cooling air.

[0025] Preferably, the rotating tube is separately provided at the position of the rotating handle.

[0026] By adopting the above technical solution, the installation of the rotating tube is facilitated.

[0027] A second object of the present invention is to provide a method for dissipating heat after thermal melting of a laminated iron core.

[0028] The above technical objectives of the present invention are achieved through the following technical solutions: a method for heat dissipation after hot melting of laminated iron cores,

[0029] Step 1: Using a ceramic hot-melt device to melt the bonding layer between the laminated cores and pressurize and bond them;

[0030] Step 2: Inject cooling water into the water-cooled plate to cool down the cooling channel in the center of the water-cooled plate and the ceramic hot-melt device on the top.

[0031] Step 3: Cooling air is directed into the cooling channel through the air cooling plate to cool the laminated core punching sheets;

[0032] Step 4: When the cooling efficiency is low, the cooling water is directed into the air-cooled plate through the rotating pipe to cool the inside of the air-cooled plate, and the cooling water is returned through the rotating pipe at the same time;

[0033] Step 5: When the cooling efficiency needs to be adjusted, the flow gap is adjusted by rotating the rotating tube to adjust the flow rate of the cooling water; at the same time, the aperture of the inclined hole is adjusted by the transmission structure at the bottom of the rotating tube to adjust the cooling air flow rate;

[0034] Step 6: When the temperature of the ceramic hot-melt device is too high, the cooling air is allowed to flow upward to the cooling channel by adjusting the inclined hole to cool the ceramic hot-melt device.

[0035] To sum up, during the use of the mold, the punch moves downward through the air-cooling channel. During the movement, the water-cooling plate, which is cooled by cooling water, is isolated from the heating device on the top to prevent the temperature of the heating device from being transferred to the air-cooling position below. At the same time, the temperature of the air-cooling channel is reduced at the water-cooling plate position to achieve a pre-cooling effect, while preventing hot air from flowing downward when the air-cooling plate blows air downward; then the air flow in the lower air-cooling plate cools the punch in the central air-cooling channel through the air outlet; in this process, the water-cooling plate plays a role in isolating the temperature transfer of the upper heating device. At the same time, during the cooling process of the lower air-cooling plate, the cooling water in the cooling plate flows into the air-cooling plate through the manual connecting mechanism, thereby achieving physical cooling in the air-cooling plate, further reducing the air flow temperature, and improving the cooling efficiency of the punch. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 1 is a schematic diagram of a combined state of an embodiment;

[0037] Figure 2 The explosion state of the embodiment is shown in FIG. Figure 1 ;

[0038] Figure 3 The explosion state of the embodiment is shown in FIG. Figure 2 ;

[0039] Figure 4 yes Figure 3 An enlarged schematic diagram of part A is shown;

[0040] Figure 5 is a cross-sectional schematic diagram of an embodiment;

[0041] In the figure, 1. upper fixed plate; 11. connecting area; 12. air-cooling channel; 2. water-cooling plate; 21. water inlet waterway; 22. water outlet waterway; 23. water inlet hole; 24. water outlet hole; 25. circulation hole; 26. outer sealing groove; 27. upper sealing ring; 3. middle adjustment plate; 31. adjustment groove; 32. upper connecting hole; 33. lower connecting hole; 41. rotating tube; 42. partition; 43. first water inlet; 44. first water outlet; 45. second water inlet; 46. second water outlet; 47. rotating handle; 5. air-cooling plate; 51. cooling chamber; 52. air inlet chamber; 53. air inlet; 54. air outlet; 55. guide platform; 6. lower fixed plate; 61. sleeve; 62. lower inclined hole; 63. upper inclined hole; 64. outer gear ring; 65. gear. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings.

[0043] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

[0044] Example:

[0045] like Figures 1 to 5 As shown, a laminated iron core heat dissipation mold after hot melting is installed at the bottom of the heating mold. The heating mold is disclosed in the Chinese invention patent with application number "201810337675.3" applied by our company in 2018. The gas path water-cooling mold includes an upper fixed plate 1, a water-cooling plate 2, a manual connecting mechanism, an air-cooling plate 5 and a lower fixed plate 6 from top to bottom. At the same time, an air-cooling channel 12 is provided through the center of the five parts. The air-cooling channel 12 is provided in the center of the upper fixed plate 1, the water-cooling plate 2, the middle adjustment plate 3, the air-cooling plate 5 and the lower fixed plate 6.

[0046] like Figures 1 to 5 As shown, a connection area 11 is provided on the top of the upper fixed plate 1. A groove for setting the ceramic heater assembly is provided in the connection area 11. At the same time, the connection area 11 allows air to enter the air cooling channel 12, thereby reducing the contact area between the upper fixed plate 1 and the top heating mold. The upper fixed plate 1 is sealed and set on the top of the water-cooled plate 2.

[0047] like Figures 1 to 5 As shown, the upper layer of the water-cooling plate 2 is provided with a water inlet channel 21, the lower layer of the water-cooling plate 2 is provided with a water outlet channel 22, and the side of the water-cooling plate 2 is provided with a water inlet hole 23 and a water outlet hole 24. During use, the water inlet hole 23 is connected to the pipeline, and low-temperature cooling water is injected into the water inlet channel 21. The water inlet hole 23 is connected to the water inlet channel 21, and the water outlet hole 24 is connected to the water outlet channel 22. The interior of the water-cooling plate 2 is penetrated by a flow hole 25 connecting the water inlet channel 21 and the water outlet channel 22 in the height direction. The specific structure is as shown in FIG. Figure 2 、 Figure 3 and Figure 5 As shown, the water inlet waterway 21 and the water outlet waterway 22 are arranged in a spiral line, the rotation directions of the water inlet waterway 21 and the water outlet waterway 22 are opposite, the end of the water inlet waterway 21 and the head end of the water outlet waterway 22 overlap with each other on the orthographic projection plane, and the flow hole 25 is arranged at the overlapping position; the head end of the water inlet waterway 21 and the end of the water outlet waterway 22 overlap with each other on the orthographic projection plane, and the upper connecting hole 32 is arranged at the overlapping position; the flow hole 25 is arranged at a position close to the center of the water-cooling plate 2, and the upper connecting hole 32 is arranged at a position close to the outside of the water-cooling plate 2, so that when the rotating tube 41 rotates in the upper connecting hole 32, the first water inlet 43 and the second water outlet 46 can be opened and closed at the same time.

[0048] like Figures 1 to 5As shown, a manual connecting mechanism is provided in the center of the water-cooling plate 2 and the air-cooling plate 5. The manual connecting mechanism mainly controls the coolant in the water-cooling plate 2 to flow into the air-cooling plate 5 to reduce the temperature of the air-cooling plate 5. The manual connecting mechanism includes a middle adjustment plate 3, an adjustment groove 31, an upper connecting hole 32, a lower connecting hole 33 and a rotating tube 41, wherein the top of the middle adjustment plate 3 is sealed with the bottom of the water-cooling plate 2, the bottom of the middle adjustment plate 3 is sealed with the top of the air-cooling plate 5, and the adjustment groove 31 is provided on the side of the middle adjustment plate 3 (as shown in FIG. Figure 5 As shown, when a small-sized guide platform 55 is used, the bottom of the middle adjustment plate 3 needs to be sealed with the air-cooled plate 5. When a large-sized guide platform 55 is used, the adjustment groove 31 can pass through the middle adjustment plate 3 downward), the upper connecting hole 32 passes through the water-cooled plate 2 in the height direction and connects the water inlet waterway 21 and the water outlet waterway 22. The lower connecting hole 33 passes through the air-cooled plate 5 in the height direction and connects the cooling cavity 51 and the air intake cavity 52.

[0049] like Figure 5 As shown, in order to simplify processing and improve the sealing effect, the connection relationship between the water-cooling plate 2 and the upper and lower parts can be welded or fixed with internal bolts. The water inlet waterway 21 is arranged to penetrate upward along the height direction of the water-cooling plate 2, and the water outlet waterway 22 is arranged to penetrate downward along the height direction of the water-cooling plate 2, which is convenient for milling processing. An outer sealing groove 26 is provided on the outer side of the top and the outer side of the bottom of the water-cooling plate 2, and an inner sealing groove is provided on the inner side of the top and the inner side of the bottom of the water-cooling plate 2. The outer sealing groove 26 and the inner sealing groove are concentrically arranged with the air-cooling channel 12, and an upper sealing ring 27 is provided in the outer sealing groove 26 and the inner sealing groove.

[0050] That is Figure 3 and Figure 5 As shown, the rotating tube 41 is a pipe fitting, which can be an integral or split arrangement. A water inlet channel and a water return channel are arranged in the rotating tube 41. The water inlet channel and the water return channel are arranged axially through the rotating tube 41. The water inlet channel and the water return channel are separated by a partition 42. The partition 42 extends along the height direction of the rotating tube 41. The partition 42 is snapped or bonded or welded or integrally drilled to the inner side of the rotating tube 41. The water inlet channel is communicated with the water inlet waterway 21 and the cooling chamber 51 in the height direction, and the water return channel is communicated with the outlet waterway 21 and the cooling chamber 51 in the height direction. The water path 22 is connected to the cooling chamber 51, and the water inlet channel includes a first water inlet 43 at the top and a first water outlet 44 at the bottom. The first water inlet 43 is arranged at the upper part of the side of the rotating tube 41 and is connected to the water inlet channel, and the first water outlet 44 is arranged at the lower part of the side of the rotating tube 41 and is connected to the water inlet channel; the water outlet channel includes a second water inlet 45 at the bottom and a second water outlet 46 at the top. The second water inlet 45 is coaxially arranged with the first water outlet 44, and the second water outlet 46 is located at the lower part of the side of the rotating tube 41 and lower than the first water inlet 43.

[0051] like Figure 3As shown, the rotating tube 41 is provided with a rotating handle 47 in the adjusting groove 31, and a scale is provided on the rotating handle 47. The rotating handle 47 is in the shape of a truncated cone, and a frosted surface is provided on the outer side of the rotating handle 47. The rotating tube 41 can be provided in a split manner at the position of the rotating handle 47. A lower sealing ring is provided on the outer wall of the rotating tube 41 below, which is then sealed and connected to the inside of the rotating handle 47. At the same time, the partition 42 is connected to the rotating tube 41 below by plugging.

[0052] like Figures 1 to 5 As shown, the top of the air-cooling plate 5 is recessed inward to provide a cooling cavity 51. Due to the provision of a guide platform 55, the cross-sectional shape of the cooling cavity 51 is C-shaped. The bottom of the air-cooling plate 5 is recessed upward to form an air inlet cavity 52. ​​The cooling cavity 51 and the air inlet cavity 52 are concentrically arranged. The cooling cavity 51 is located on the inner side of the air inlet cavity 52. ​​An air inlet 53 and an air outlet 54 are provided on the air-cooling plate 5. The air inlet 53 penetrates the radial direction of the air-cooling plate 5 to the outer side of the air-cooling plate 5, and the air outlet 54 penetrates the radial direction of the air-cooling plate 5 to the inner side of the air-cooling plate 5. The air-cooling plate 5 is provided with a guide platform 55 in the cooling cavity 51. The cooling cavity 51 is annular. One side of the guide platform 55 is connected and corresponds to the first water outlet 44, and the other side of the guide platform 55 is connected and corresponds to the second water inlet 45.

[0053] like Figure 5 As shown, the lower fixed plate 6 is arranged at the bottom of the air-cooling plate 5, which serves as an air inlet cavity 52 at the bottom of the air-cooling plate 5. At the same time, during use, in order to achieve the effect of adjusting the water cooling effect and the air cooling effect, that is, to avoid too rapid cooling, resulting in insufficient hot melting of the top punching sheet or too rapid cooling resulting in poor bonding effect; the air-cooling channel 12 is provided with a sleeve 61 at the position of the air-cooling plate 5, and the inner wall of the sleeve 61 is provided with a lower inclined hole 62 connected to the air outlet hole 54. The sleeve 61 is rotatably connected to the bottom of the air-cooling channel 12, and the bottom of the sleeve 61 extends outside the air-cooling channel 12 to form a rotating ring. The outer circumferential surface of the rotating ring is provided with an outer gear ring 64, and the bottom of the rotating tube 41 is provided with a gear 65 meshing with the outer gear ring 64. When the rotating handle 47 is rotated, the gap between the lower inclined hole 62 and the air outlet hole 54 can be synchronously adjusted.

[0054] At the same time, in order to adjust the temperature inside the heating mold, the sleeve 61 is designed with a reverse airflow structure. One end of the lower inclined hole 62 corresponds to the air outlet 54, and the other end of the lower inclined hole 62 corresponds to the air cooling channel 12. Figure 5 As shown on the right side, an upper inclined hole 63 is provided between adjacent lower inclined holes 62 (the figure is for schematic representation only, and under normal conditions the air outlet 54 is only connected to the upper inclined hole 63 or the lower inclined hole 62). One end of the upper inclined hole 63 corresponds to the air outlet 54, and the other end of the upper inclined hole 63 is inclined upward and corresponds to the air cooling channel 12.

[0055] Working principle:

[0056] When the rotating tube 41 is rotated to the open state, the first flow direction of the cooling water is that the coolant enters the water inlet channel 21 from the water inlet hole 23, flows toward the center through the water inlet channel 21 of the spiral line, then flows downward through the flow hole 25 into the water outlet channel 22, and flows outward from the center to the water outlet hole 24 through the water outlet channel 22 of the spiral line.

[0057] At the same time, the second flow direction of the cooling water is that the coolant enters the first water inlet 43 counterclockwise, enters the water inlet channel downward from the first water inlet 43, enters the cooling chamber 51 through the first water outlet 44 at the bottom, and then flows back to the return channel of the rotating tube 41 through the second water inlet 45 at the other end of the cooling chamber 51, flows upward to the second water outlet 46 into the water outlet waterway 22, and finally flows out from the water outlet hole 24.

[0058] At the same time, when the rotating tube 41 rotates to the closed state, the second flow direction is closed;

[0059] External high-pressure gas enters the air inlet cavity 52 through the air inlet hole, and the air flow is cooled by the downwardly protruding annular cooling block, and then enters the lower inclined hole 62 through the air outlet hole 54, blowing downward and cooling the punching sheet. When it is necessary to adjust the air temperature in the center of the upper heating mold, the rotating tube 41 is rotated to connect the upper inclined hole 63 with the air outlet hole 54, changing the direction of the air flow so that the cold air flow flows upward to cool the upper heating mold.

Claims

1. A heat dissipation mold for laminated iron cores after hot melting, characterized by: From top to bottom, it comprises an upper fixed plate (1), a top of the upper fixed plate (1) is provided with a connection area (11), and the upper fixed plate (1) is sealed and arranged on the top of the water-cooling plate (2); A water-cooling plate (2), wherein the upper layer of the water-cooling plate (2) is provided with a water inlet channel (21), the lower layer of the water-cooling plate (2) is provided with a water outlet channel (22), a side surface of the water-cooling plate (2) is provided with a water inlet hole (23) and a water outlet hole (24), the water inlet hole (23) is connected to the water inlet channel (21), the water outlet hole (24) is connected to the water outlet channel (22), and a flow hole (25) is provided in the interior of the water-cooling plate (2) in a height direction thereof, the flow hole being connected to the water inlet channel (21) and the water outlet channel (22); The manual connecting mechanism comprises a middle adjusting plate (3), an adjusting groove (31), an upper connecting hole (32), a lower connecting hole (33) and a rotating tube (41), wherein the top of the middle adjusting plate (3) is sealed with the bottom of the water cooling plate (2), the bottom of the middle adjusting plate (3) is sealed with the top of the air cooling plate (5), the adjusting groove (31) is arranged on the side of the middle adjusting plate (3), and the upper connecting hole (32) passes through the water cooling plate (2) in the height direction and is connected to the water inlet channel ( 21) and a water outlet waterway (22), the lower communicating hole (33) passes through the air cooling plate (5) in the height direction and communicates with the cooling cavity (51) and the air inlet cavity (52), the rotating tube (41) is provided with a water inlet channel and a water return channel, the water inlet channel and the water return channel pass through the axial arrangement of the rotating tube (41), the water inlet channel is communicated with the water inlet waterway (21) and the cooling cavity (51) respectively, and the water return channel is communicated with the water outlet waterway (22) and the cooling cavity (51) respectively; An air-cooling plate (5), wherein the top of the air-cooling plate (5) is recessed inwardly to form a cooling cavity (51), and the bottom of the air-cooling plate (5) is recessed upwardly to form an air inlet cavity (52), wherein the cooling cavity (51) and the air inlet cavity (52) are concentrically arranged, and the cooling cavity (51) is located on the inner side of the air inlet cavity (52), and an air inlet (53) and an air outlet (54) are provided on the air-cooling plate (5), wherein the air inlet (53) penetrates the air-cooling plate (5) radially to the outer side, and the air outlet (54) penetrates the air-cooling plate (5) radially to the inner side; A lower fixing plate (6) is arranged at the bottom of the air-cooling plate (5); The air cooling channel (12) is arranged at the center of the upper fixed plate (1), the water cooling plate (2), the middle adjustment plate (3), the air cooling plate (5) and the lower fixed plate (6).

2. The heat dissipation mold for laminated iron cores after hot melting according to claim 1, characterized in that: The air cooling channel (12) is provided with a sleeve (61) at the position of the air cooling plate (5), the inner wall of the sleeve (61) is provided with a lower inclined hole (62) connected to the air outlet hole (54), the sleeve (61) is rotatably connected to the bottom of the air cooling channel (12), the bottom of the sleeve (61) extends outside the air cooling channel (12) to form a rotating ring, the outer circumferential surface of the rotating ring is provided with an outer gear ring (64), and the bottom of the rotating tube (41) is provided with a gear (65) meshing with the outer gear ring (64).

3. The heat dissipation mold for laminated cores after hot melting according to claim 2, characterized in that: One end of the lower inclined hole (62) corresponds to the air outlet hole (54), and the other end of the lower inclined hole (62) corresponds to the air cooling channel (12). An upper inclined hole (63) is provided between adjacent lower inclined holes (62), one end of the upper inclined hole (63) corresponds to the air outlet hole (54), and the other end of the upper inclined hole (63) is inclined upward and corresponds to the air cooling channel (12).

4. The heat dissipation mold for laminated cores after hot melting according to claim 1, characterized in that: The water inlet waterway (21) and the water outlet waterway (22) are arranged in a spiral line, the rotation directions of the water inlet waterway (21) and the water outlet waterway (22) are opposite, the end of the water inlet waterway (21) and the beginning of the water outlet waterway (22) overlap with each other on the orthographic projection surface, and the circulation hole (25) is arranged at the overlapping position; the beginning of the water inlet waterway (21) and the end of the water outlet waterway (22) overlap with each other on the orthographic projection surface, and the upper communication hole (32) is arranged at the overlapping position; the circulation hole (25) is arranged at a position close to the center of the water cooling plate (2), and the upper communication hole (32) is arranged at a position close to the outside of the water cooling plate (2).

5. The heat dissipation mold for laminated cores after hot melting according to claim 4, characterized in that: The water inlet channel (21) is arranged to penetrate upward along the height direction of the water-cooling plate (2), and the water outlet channel (22) is arranged to penetrate downward along the height direction of the water-cooling plate (2). An outer sealing groove (26) is provided on the outer side of the top and the outer side of the bottom of the water-cooling plate (2), and an inner sealing groove is provided on the inner side of the top and the inner side of the bottom of the water-cooling plate (2). The outer sealing groove (26) and the inner sealing groove are arranged concentrically with the air-cooling channel (12), and an upper sealing ring (27) is provided in the outer sealing groove (26) and the inner sealing groove.

6. The heat dissipation mold for laminated cores after hot melting according to claim 4, characterized in that: A partition (42) is provided between the water inlet channel and the water return channel, and the partition (42) extends along the height direction of the rotating tube (41). The water inlet channel comprises a first water inlet (43) and a first water outlet (44). The first water inlet (43) is provided at the upper part of the side of the rotating tube (41) and is communicated with the water inlet channel. The first water outlet (44) is provided at the lower part of the side of the rotating tube (41) and is communicated with the water inlet channel. The water return channel comprises a second water inlet (45) and a second water outlet (46). The second water inlet (45) is coaxially provided with the first water outlet (44). The second water outlet (46) is located at the lower part of the side of the rotating tube (41) and is lower than the first water inlet (43).

7. The heat dissipation mold for laminated cores after hot melting according to claim 6, characterized in that: The air-cooling plate (5) is provided with a guide platform (55) in a cooling cavity (51); the cooling cavity (51) is annular; one side of the guide platform (55) is connected to and corresponds to the first water outlet (44); the other side of the guide platform (55) is connected to and corresponds to the second water inlet (45).

8. The heat dissipation mold for laminated cores after hot melting according to claim 6, characterized in that: The rotating tube (41) is provided with a rotating handle (47) in the adjusting groove (31). The rotating handle (47) is provided with a scale. The rotating handle (47) is in a truncated cone shape. The outer side of the rotating handle (47) is provided with a frosted surface.

9. The heat dissipation mold for laminated iron cores after hot melting according to claim 8, characterized in that: The rotating tube (41) is separately provided at the position of the rotating handle (47).

10. A heat dissipation method using the heat dissipation mold after hot melting of the laminated iron core according to any one of claims 1 to 9, characterized in that: Step 1: Using a ceramic hot-melt device to melt the bonding layer between the laminated cores and pressurize and bond them; Step 2: Inject cooling water into the water-cooled plate to cool down the cooling channel in the center of the water-cooled plate and the ceramic hot-melt device on the top. Step 3: Cooling air is directed into the cooling channel through the air cooling plate to cool the laminated core punching sheets; Step 4: When the cooling efficiency is low, the cooling water is directed into the air-cooled plate through the rotating pipe to cool the inside of the air-cooled plate, and the cooling water is returned through the rotating pipe at the same time; Step 5: When the cooling efficiency needs to be adjusted, the flow gap is adjusted by rotating the rotating tube to adjust the flow rate of the cooling water; at the same time, the aperture of the inclined hole is adjusted by the transmission structure at the bottom of the rotating tube to adjust the cooling air flow rate; Step 6: When the temperature of the ceramic hot-melt device is too high, the cooling air is allowed to flow upward to the cooling channel by adjusting the inclined hole to cool the ceramic hot-melt device.

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