Die casting device for battery pack shell of new energy automobile

Abstract

The invention relates to the technical field of shell die-casting, in particular to a new energy automobile battery pack shell die-casting device which comprises a conveying belt A installed in a base, a fixing frame is installed on one side of the conveying belt A, an empty groove is formed in one side of the fixing frame, a storage tank is installed in the empty groove, and the outer side of the storage tank communicates with a pouring gun. Two groups of heat conduction pipes are mounted on two sides of the conveying belt A, and a conveying belt B is arranged at one end of the conveying belt A. During secondary preheating, the speed of the conveying belt B can be automatically slowed down when the temperature is relatively low, so that insufficient preheating is prevented, and when the temperature is relatively high, the speed of the conveying belt B can be automatically increased, so that excessive preheating caused by relatively high temperature is prevented; therefore, the consistency of secondary preheating is accurately controlled, the mold stays longer in a preheating area, it is ensured that enough heat is absorbed, insufficient preheating caused by too fast conveying is avoided, and the defects of cold shut, poor fluidity and the like caused by insufficient mold temperature after metal injection are overcome.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of shell die casting, in particular to a new energy automobile battery pack shell die casting device. BACKGROUND

[0002] With the global emphasis on low-carbon environmental protection and sustainable development, the new energy automobile market shows explosive growth, and the global new energy automobile sales are expected to break through 20 million in 2025. The safety, lightweight and production cost of the battery pack, as a core component of the new energy automobile, directly affect the performance of the whole vehicle.

[0003] When the traditional die casting device is used, the preheating time of the mold will change synchronously under different temperature conditions, so that the staff needs to continuously manually adjust the speed and temperature of the conveying structure, and manual adjustment has certain deviation, thereby causing the consistency of mold preheating to be different, and affecting the batch quality of products. SUMMARY

[0004] When the secondary preheating is carried out, the speed of the conveying belt B is automatically slowed down when the temperature is low, so that insufficient preheating is prevented, and the speed of the conveying belt B is automatically increased when the temperature is high, so that excessive preheating caused by high temperature is prevented, thereby accurately controlling the consistency of secondary preheating, making the mold stay in the preheating area for a longer time, ensuring that enough heat is absorbed, avoiding insufficient preheating caused by too fast conveying, and preventing defects such as cold separation and poor flowability caused by insufficient mold temperature after metal injection.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a new energy automobile battery pack shell die casting device, comprising a conveying belt A installed in a base, a fixed frame is installed on one side of the conveying belt A, an empty groove is installed on one side of the fixed frame, a storage tank is installed in the empty groove, a pouring gun is communicated outside the storage tank, and two groups of heat conducting pipes are installed on both sides of the conveying belt A.

[0006] One end of the conveying belt A is provided with a conveying belt B, a flow guide groove is arranged outside the conveying belt B, a fan blade is rotatably arranged on the upper end of the flow guide groove, fixed rods are rotatably arranged at both ends of the fan blade, and knock rods are installed on both sides of the flow guide groove.

[0007] The heat conducting pipes are communicated with a collecting groove outside, a plurality of storage pipes are installed in the collecting groove, a variable speed roller is arranged in the conveying belt B, the outer diameter of the variable speed roller changes from large to small, a driving shaft is rotatably arranged at one end of the variable speed roller, and a rotating disc is connected to one end of the driving shaft.

[0008] Preferably, the conveying belt A is connected with a motor at one end, the conveying belt A is driven by the motor, the fixed frame is fixedly connected with the base, an electric push rod is fixedly connected to the center of the upper end of the fixed frame, and the electric push rod extends to the lower end through the fixed frame and is connected with the pouring gun.

[0009] Preferably, the upper end of the air slot is connected with an air inlet pipe, the other end of the air inlet pipe is connected with a hot air blower, the heat pipe extends to the inside through the air slot, the outside of the air inlet pipe is connected with a material conveying pipe, and the material conveying pipe extends to the outside through the air slot and is connected with a pouring gun.

[0010] Preferably, one end of the two groups of heat pipes extends to the two sides of the flow guide groove, and the two groups of heat pipes extend to the inside through the two sides of the flow guide groove, the flow guide groove is fixedly connected with the upper surface of the base, and an air outlet is formed in the center of the upper end of the flow guide groove.

[0011] Preferably, the two ends of the fan blade are provided with two groups of buckles, the two groups of buckles are movably connected with the fan blade, the two ends of the fan blade are fixedly connected with two groups of connecting rods, the other ends of the two groups of connecting rods extend to the outside through the buckles, and the ends, away from the fan blade, of the two groups of connecting rods are connected with fixing rods.

[0012] Preferably, the two groups of knocking rods are movably connected with the fixing rods on the two sides of the flow guide groove.

[0013] Preferably, the outside of the heat pipe is connected with a branch pipe, the other end of the branch pipe is connected with the branch pipe, a through hole is formed in the outside of the collecting groove, and a push rod is movably connected in the inside of the storage pipe.

[0014] Preferably, one end of the driving shaft is rotatably connected with the output end of the motor, the outside of the driving shaft is fixedly connected with a protruding block, an insertion slot is formed in the inside of the speed change roller, the inner diameter of the insertion slot matches the outer diameter of the protruding block, and the driving shaft is inserted with the speed change roller through the collecting groove.

[0015] Preferably, one end of the speed change roller close to the collecting groove is movably connected with a rotating disc, one end of the rotating disc is connected with a spring, the other end of the spring is connected with the base, and one end of the conveying belt B is provided with a conveying belt C.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. The mold groove is preheated before pouring, so that the mold temperature approaches the liquid metal temperature, the heat loss of the metal during injection is reduced, the viscosity of the liquid metal is prevented from increasing due to sudden cooling, the mold is more smoothly filled with complex structure, the risk of defects such as material shortage and cold separation is reduced, the thermal shock caused by large temperature difference when the liquid metal contacts the low-temperature mold is prevented, the mold surface cracking and wear are reduced, the service life of the mold is prolonged, and the production cost is reduced.

[0018] 2、The invention will produce knocking vibration with the base every time the knocking rod drops, thereby transmitting part of the vibration force to the poured mold, while combining the above-mentioned secondary preheating of the poured mold, so that the vibration can reduce the surface tension of the liquid metal, cooperate with the secondary preheating to maintain the metal fluidity, so that it can more fully fill the fine structure of the mold, reduce material shortage, while the vibration assists heat conduction, so that the heat of the secondary preheating is more evenly distributed to each part of the mold, especially for thick-walled or complex structures, to avoid local temperature too low causing metal to solidify in advance.

[0019] 3、The invention automatically slows down the speed of the conveying belt B when the temperature is lower during secondary preheating, thereby preventing insufficient preheating, and when the temperature is higher, it automatically increases the speed of the conveying belt B, thereby preventing excessive preheating caused by high temperature, thereby accurately controlling the consistency of secondary preheating, so that the mold stays longer in the preheating area, ensuring that enough heat is absorbed, avoiding insufficient preheating caused by too fast conveying, preventing defects such as cold separation and poor fluidity of the metal after injection, while shortening the residence time of the mold in the high temperature area, avoiding local overheating causing mold thermal fatigue or metal overheating solidification, preventing problems such as porosity and overburning of the casting. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is one of the overall structure schematic diagram of the invention;

[0021] Figure 2 It is the second overall structure schematic diagram of the invention;

[0022] Figure 3 It is one of the partial structure diagram of the invention;

[0023] Figure 4 It is the second partial structure diagram of the invention;

[0024] Figure 5 It is one of the partial structure cross-sectional view of the invention;

[0025] Figure 6 It is the second partial structure cross-sectional view of the invention;

[0026] Figure 7 It is the third partial structure cross-sectional view of the invention;

[0027] Figure 8 It is the fourth partial structure cross-sectional view of the invention;

[0028] Figure 9 It is the Figure 5 The structure of A in the middle is enlarged.

[0029] As shown in the figure: 1, base; 2, conveyor belt A; 3, fixed frame; 4, electric push rod; 5, pouring gun; 6, empty slot; 7, storage tank; 8, air inlet pipe; 9, material conveying pipe; 10, heat conducting pipe; 11, conveyor belt B; 12, flow guide groove; 13, air outlet; 14, fan blade; 15, connecting rod; 16, fixed rod; 17, knock rod; 18, branch pipe; 19, collection groove; 20, drive shaft; 21, storage pipe; 22, push rod; 23, protruding block; 24, speed change roller; 25, insertion slot; 26, turntable; 27, spring; 28, conveyor belt C. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0031] REFERENCE Figures 1-9 As shown in the figure, the present application provides a new energy automobile battery pack shell die casting device, which comprises a conveyor belt A 2 installed inside the base 1, a fixed frame 3 is installed on one side of the conveyor belt A 2, an empty slot 6 is installed on one side of the fixed frame 3, a storage tank 7 is installed inside the empty slot 6, a pouring gun 5 is communicated outside the storage tank 7, and two groups of heat conducting pipes 10 are installed on both sides of the conveyor belt A 2.

[0032] One end of the conveyor belt A 2 is provided with a conveyor belt B 11, a flow guide groove 12 is provided outside the conveyor belt B 11, a fan blade 14 is rotatably arranged at the upper end of the flow guide groove 12, fixed rods 16 are rotatably arranged at both ends of the fan blade 14, and knock rods 17 are installed on both sides of the flow guide groove 12.

[0033] The heat conducting pipe 10 is communicated with a collection groove 19 outside, a plurality of storage pipes 21 are installed inside the collection groove 19, a speed change roller 24 is provided inside the conveyor belt B 11, the outer diameter of the speed change roller 24 changes from large to small, a drive shaft 20 is rotatably arranged at one end of the speed change roller 24, and a turntable 26 is connected to one end of the drive shaft 20.

[0034] In an optional embodiment, the conveying belt A2 is connected with a motor at one end, the conveying belt A2 is driven by the motor, the fixed frame 3 is fixedly connected with the base 1, the fixed frame 3 is fixedly connected with the electric push rod 4 at the upper end center, the electric push rod 4 extends to the lower end through the fixed frame 3 and is connected with the pouring gun 5, when using the equipment, the mold is placed on the upper end of the conveying belt A2, the mold is conveyed by rotating the conveying belt A2 driven by the motor, when the pouring gun 5 detects that the mold approaches the lower end of the pouring gun 5, the pouring gun 5 will automatically descend through the electric push rod 4 and contact the mold groove, and the conveying belt A2 will stop automatically when the pouring gun 5 contacts the mold groove, after pouring is completed, the conveying belt A2 will be started again to transport.

[0035] In an optional embodiment, the air slot 6 is connected with an air inlet pipe 8 at the upper end, the other end of the air inlet pipe 8 is connected with a hot air machine, the heat conducting pipe 10 extends to the inside through the air slot 6, the air inlet pipe 8 is connected with a feeding pipe 9 outside, the feeding pipe 9 extends to the outside through the air slot 6 and is connected with the pouring gun 5, the storage tank 7 stores raw materials inside, the hot air machine transports hot air into the inside of the air slot 6 through the air inlet pipe 8, after the hot air enters the inside of the air slot 6, the hot air will heat the storage tank 7, so that the raw materials in the inside of the storage tank 7 always maintain a certain heat, and the storage tank 7 transports the raw materials to the inside of the pouring gun 5 through the feeding pipe 9, and the hot air entering the inside of the air slot 6 will be discharged into the inside of the two groups of heat conducting pipes 10 after new hot air enters the inside of the air slot 6, and the hot air entering the inside of the two groups of heat conducting pipes 10 also has a certain heat, so that when the hot air is transported in the heat conducting pipe 10, the heat will be dissipated outward, when the heat is dissipated, the mold groove transported on the conveying belt A2 will be preheated, so that the mold temperature approaches the liquid metal temperature, reduces the rapid loss of heat when the metal is injected, avoids the viscosity increase of the liquid metal due to sudden cooling, so that the mold complex structure is more smoothly filled, reduces the risk of defects such as material shortage and cold separation, at the same time, prevents thermal shock due to large temperature difference when the liquid metal contacts the low temperature mold, reduces the mold surface cracking and wear, prolongs the mold service cycle, and reduces the production cost.

[0036] In an optional embodiment, one end of the two groups of heat conducting pipes 10 extends to both sides of the flow guide groove 12, and the two groups of heat conducting pipes 10 extend to the inside through both sides of the flow guide groove 12, the flow guide groove 12 is fixedly connected with the upper surface of the base 1, the air outlet 13 is formed at the upper end center of the flow guide groove 12, after the mold groove is poured by the pouring gun 5, the conveying belt A2 will transport the poured mold to the upper end of the conveying belt B11 for transportation, the poured mold will enter the inside of the flow guide groove 12 with the transportation of the conveying belt B11, after the two groups of heat conducting pipes 10 transport hot air to both sides of the inside of the flow guide groove 12, the hot air released by the two groups of heat conducting pipes 10 will form a convection on both sides of the mold, so that the poured mold is preheated again, and the hot air forming the convection will guide the wind force to the upper end through the outer wall of the mold, after the hot air forming the convection enters the upper end, it will be discharged outward through the air outlet 13.

[0037] In an optional embodiment, the two ends of the fan blade 14 are provided with two sets of buckles, which are movably connected with the fan blade 14. The two ends of the fan blade 14 are fixedly connected with two sets of connecting rods 15, the other ends of the two sets of connecting rods 15 extend to the outside through the buckles, and the ends away from the fan blade 14 of the two sets of connecting rods 15 are connected with fixed rods 16. When the hot air is discharged through the air outlet 13, the wind power will blow the fan blade 14 to rotate. When the fan blade 14 rotates, the two sets of connecting rods 15 at the two ends of the fan blade 14 will be rotated synchronously, and the two sets of fixed rods 16 will be rotated synchronously when the two sets of connecting rods 15 rotate.

[0038] In an optional embodiment, the two sides of the flow guide groove 12 are movably connected with two sets of knocking rods 17, and the two sets of knocking rods 17 are located in the same plane as the fixed rods 16. When the two sets of fixed rods 16 rotate, they will contact the knocking rods 17 every certain period of time, thereby extruding the knocking rods 17 to lift upward. With the rotation of the fixed rods 16, the fixed rods 16 will be disconnected from the knocking rods 17, so that the knocking rods 17 will drop due to their own gravity. After the knocking rods 17 drop, they will produce knocking vibration with the base 1, thereby transmitting part of the vibration force to the poured mold. At the same time, the poured mold is combined with the above-mentioned secondary preheating, so that the vibration can reduce the surface tension of the liquid metal, cooperate with the secondary preheating to maintain the metal fluidity, make it more fully fill the fine structure of the mold, reduce the lack of material, and at the same time, the vibration assists heat conduction, so that the heat of the secondary preheating is more evenly spread to each part of the mold, especially for thick-walled or complex structures, to avoid local temperature too low causing metal to solidify in advance.

[0039] In an optional embodiment, the heat pipe 10 is connected with a branch pipe 18 outside, the other end of the branch pipe 18 is connected with the branch pipe 18, a through hole is formed in the outside of the collection groove 19, a push rod 22 is movably connected in the inside of the storage pipe 21. When the heat pipe 10 transports hot air, part of the hot air will enter the inside of the collection groove 19 through the branch pipe 18. After the hot air enters the inside of the collection groove 19, the temperature in the inside of the collection groove 19 will rise. When the temperature in the inside of the collection groove 19 rises, the heat will be conducted to the storage pipe 21, and mercury is arranged in the inside of the storage pipe 21, so that when the heat is conducted to the mercury, the mercury will expand. After the mercury expands, the push rod 22 in the inside of the storage pipe 21 will be pushed to move outward.

[0040] In an optional embodiment, one end of the drive shaft 20 is rotatably connected with the motor output end, the drive shaft 20 is fixedly connected with a protrusion 23 outside, the speed-changing roller 24 is provided with a slot 25 inside, the inner diameter of the slot 25 matches the outer diameter of the protrusion 23, the drive shaft 20 penetrates the collecting groove 19 and is inserted with the speed-changing roller 24, when the push rod 22 is pushed outwards, it will contact the rotating disc 26, the rotating disc 26 is movably connected with the speed-changing roller 24, the speed-changing roller 24 cannot drive the rotating disc 26 to rotate, when the push rod 22 contacts the rotating disc 26, it will extrude the rotating disc 26 to move, when the rotating disc 26 moves, it will synchronously drive the speed-changing roller 24 to move, because the outer diameter of the driven shaft of the conveying belt B11 is fixed, the outer diameter of the speed-changing roller 24 is gradually changed, so that when the speed-changing roller 24 is moved, the larger end of the speed-changing roller 24 will gradually enter the inside of the conveying belt B11, at this time, the transmission efficiency of the speed-changing roller 24 driven shaft will be changed synchronously, on the contrary, in the initial state, the outer diameter of the speed-changing roller 24 contacting the inside of the conveying belt B11 is smaller than the driven shaft, so that the transmission efficiency of the conveying belt B11 is slower in the initial state.

[0041] In an optional embodiment, the speed-changing roller 24 is movably connected with a rotating disc 26 near one end of the collecting groove 19, the rotating disc 26 is connected with a spring 27 at one end, the other end of the spring 27 is connected with the base 1, the conveying belt B11 is provided with a conveying belt C28 at one end, when the push rod 22 is extruded to push out and extrude the rotating disc 26, it will synchronously extrude the spring 27, when the temperature inside the collecting groove 19 decreases, the expansion degree of mercury will decrease, so that the push rod 22 will reset the corresponding distance through the force of the spring 27, so that according to the above, when the temperature of the hot gas entering the flow guide groove 12 is low, the moving distance of the speed-changing roller 24 will be small, so that the transmission efficiency of the conveying belt B11 is slow, when the hot gas entering the flow guide groove 12 is high, the moving distance of the speed-changing roller 24 will be large, so as to improve the transmission efficiency of the conveying belt B11, so that when the temperature is low during secondary preheating, the speed of the conveying belt B11 will automatically slow down, so as to prevent insufficient preheating, when the temperature is high, the speed of the conveying belt B11 will automatically increase, so as to prevent excessive preheating caused by high temperature, so as to accurately control the consistency of secondary preheating, make the mold stay in the preheating area for a longer time, ensure that enough heat is absorbed, avoid insufficient preheating caused by too fast conveying, prevent defects such as cold shut, poor flowability, etc. caused by insufficient mold temperature after metal injection, at the same time, shorten the staying time of the mold in the high temperature area, avoid local overheating causing mold thermal fatigue or metal overheating solidification, prevent problems such as porosity, overburning, etc. of the casting;

[0042] The mold after secondary preheating is conveyed to the rear end cooling through the conveying belt C28, and when the outer diameter of the variable speed roller 24 changes, the conveying belt B11 changes the slope, the changed slope causes the mold to slightly tilt and shake, but does not affect the normal stable transportation of the mold and does not affect the normal work, and at the same time, when the mold tilts and shakes, the vibration transmitted by the knocking further promotes the uniformity of the distribution of the raw materials in the mold.

[0043] Working principle: when using the device, place the mold on the upper end of the conveying belt A2, drive the conveying belt A2 to rotate by the motor to convey the mold, when the pouring gun 5 detects that the mold approaches the lower end of the pouring gun 5, the pouring gun 5 will automatically lower and contact the mold groove through the electric push rod 4, and the conveying belt A2 will stop when the pouring gun 5 contacts the mold groove, and after pouring is completed, the conveying belt A2 will be started again for transportation

[0044] The hot air machine conveys hot air into the empty groove 6 through the air inlet pipe 8, and after the hot air enters the empty groove 6, the hot air heats the storage tank 7, so that the raw materials in the storage tank 7 always maintain a certain heat, and the storage tank 7 conveys the raw materials to the pouring gun 5 through the feeding pipe 9, and the hot air entering the empty groove 6 is discharged into the two groups of heat conducting pipes 10 after new hot air enters the empty groove 6, and the hot air has a certain heat after entering the two groups of heat conducting pipes 10, so that when the hot air is conveyed in the heat conducting pipe 10, the heat is dissipated outward, and when the heat is dissipated, the mold groove transported on the conveying belt A2 is preheated;

[0045] After the pouring gun 5 pours the mold groove, the conveying belt A2 conveys the poured mold to the upper end of the conveying belt B11 for transportation, and the poured mold enters the guide groove 12 when the conveying belt B11 is transported, and after the two groups of heat conducting pipes 10 convey hot air to both sides of the guide groove 12, the hot air released by the two groups of heat conducting pipes 10 forms a convection on both sides of the mold, so as to preheat the poured mold, and the hot air forming the convection guides the wind to the upper end through the outer wall of the mold, and after the hot air forming the convection enters the upper end, it is discharged outward through the air outlet 13, and when the hot air is discharged through the air outlet 13, the wind will blow the fan blade 14 to rotate, and when the fan blade 14 rotates, it will synchronously drive the two groups of connecting rods 15 at both ends of the fan blade 14 to rotate, and when the two groups of connecting rods 15 rotate, they will synchronously drive the two groups of fixed rods 16 to rotate, and when the two groups of fixed rods 16 rotate, they will contact the knocking rod 17 every interval, so as to extrude the knocking rod 17 to lift upward, and with the rotation of the fixed rod 16, the fixed rod 16 is disconnected with the knocking rod 17, so that the knocking rod 17 will descend due to its own gravity, and after the knocking rod 17 descends, it will produce knocking vibration with the base 1;

[0046] When the heat-conducting pipe 10 conveys hot gas, part of the hot gas will enter the collection groove 19 through the branch pipe 18, and after the hot gas enters the collection groove 19, the temperature inside the collection groove 19 will rise, and when the temperature inside the collection groove 19 rises, the heat will be conducted to the storage pipe 21, and the storage pipe 21 is provided with mercury inside, so that when the heat is conducted to the mercury, the mercury will expand, and after the mercury expands, it will push the push rod 22 inside the storage pipe 21 to move outward, and when the push rod 22 pushes out, it will contact the rotating disc 26, and the rotating disc 26 is movably connected with the speed-changing roller 24, and the speed-changing roller 24 cannot drive the rotating disc 26 to rotate, and when the push rod 22 contacts the rotating disc 26, it will squeeze the rotating disc 26 to move, and when the rotating disc 26 moves, it will synchronously drive the speed-changing roller 24 to move, and because the outer diameter of the driven shaft of the conveying belt B11 is fixed, the outer diameter of the speed-changing roller 24 is gradually changed, so that when the speed-changing roller 24 is pushed to move, the larger end of the speed-changing roller 24 will gradually enter the inside of the conveying belt B11, at this time, the efficiency of the speed-changing roller 24 driving the driven shaft will be changed, and conversely, in the initial state, the outer diameter of the speed-changing roller 24 contacting the inside of the conveying belt B11 is smaller than the driven shaft, and thus the transmission efficiency of the conveying belt B11 is slower in the initial state.

[0047] When the temperature inside the collection groove 19 decreases, the expansion degree of the mercury will decrease, so that the push rod 22 will be reset by the force of the spring 27 by a corresponding distance, and when the temperature of the hot gas entering the flow guide groove 12 is low, the moving distance of the speed-changing roller 24 will be small, so that the transmission efficiency of the conveying belt B11 is slow, and when the hot gas entering the flow guide groove 12 is high, the moving distance of the speed-changing roller 24 will be large, so that the transmission efficiency of the conveying belt B11 is improved, so that when the temperature is low during secondary preheating, the speed of the conveying belt B11 will be automatically slowed down, so as to prevent insufficient preheating, and when the temperature is high, the speed of the conveying belt B11 will be automatically increased, so as to prevent excessive preheating caused by high temperature.

[0048] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A die-casting device for a battery pack shell of a new energy vehicle, comprising a conveyor belt A (2) installed inside a base (1), characterized in that: A fixing frame (3) is installed on one side of the conveyor belt A (2), an empty slot (6) is installed on one side of the fixing frame (3), a storage tank (7) is installed inside the empty slot (6), and a pouring gun (5) is connected to the outside of the storage tank (7), and two groups of heat conduction pipes (10) are installed on both sides of the conveyor belt A (2); A conveyor belt B (11) is provided at one end of the conveyor belt A (2), a guide groove (12) is provided on the outside of the conveyor belt B (11), a fan blade (14) is rotated at the upper end of the guide groove (12), fixed rods (16) are rotated at both ends of the fan blade (14), and knock rods (17) are installed on both sides of the guide groove (12); The outer side of the heat conducting pipe (10) is connected to a collecting tank (19), and a plurality of storage tubes (21) are installed inside the collecting tank (19). A speed change roller (24) is provided inside the conveyor belt B (11), and the outer diameter of the speed change roller (24) changes from large to small. A driving shaft (20) is rotated at one end of the speed change roller (24), and a turntable (26) is connected to one end of the driving shaft (20).

2. A new energy vehicle battery pack shell die-casting device according to claim 1, characterized in that: One end of the conveyor belt A (2) is connected to a motor, and the conveyor belt A (2) is driven by the motor. The fixed frame (3) is fixedly connected to the base (1), and an electric push rod (4) is fixedly connected to the center of the upper end of the fixed frame (3). One end of the electric push rod (4) passes through the fixed frame (3) and extends to the lower end to be connected to the pouring gun (5).

3. The die-casting device for a new energy vehicle battery pack shell according to claim 1, characterized in that: The upper end of the empty slot (6) is connected to an air inlet pipe (8), the other end of the air inlet pipe (8) is connected to a hot air blower, the heat conduction pipe (10) passes through the empty slot (6) and extends to the inside, the outer side of the air inlet pipe (8) is connected to a material delivery pipe (9), and the material delivery pipe (9) passes through the empty slot (6) and extends to the outside and is connected to a pouring gun (5).

4. The die-casting device for a new energy vehicle battery pack shell according to claim 1, characterized in that: One end of the two groups of heat-conducting pipes (10) extends to both sides of the guide groove (12), and the two groups of heat-conducting pipes (10) penetrate both sides of the guide groove (12) and extend to the inside. The guide groove (12) is fixedly connected to the upper surface of the base (1), and an air outlet (13) is provided at the center of the upper end of the guide groove (12).

5. The die-casting device for a new energy vehicle battery pack shell according to claim 1, characterized in that: Two groups of buckles are installed at both ends of the fan blade (14), and the two groups of buckles are movably connected to the fan blade (14). Two groups of connecting rods (15) are fixedly connected at both ends of the fan blade (14), and the other ends of the two groups of connecting rods (15) pass through the buckles and extend to the outside. The ends of the two groups of connecting rods (15) away from the fan blade (14) are both connected to a fixing rod (16).

6. The die-casting device for a new energy vehicle battery pack shell according to claim 1, characterized in that: Two groups of knocking rods (17) are movably connected on both sides of the guide groove (12), and the two groups of knocking rods (17) and the fixing rod (16) are located in the same plane.

7. The die-casting device for a new energy vehicle battery pack shell according to claim 1, characterized in that: The outer side of the heat conducting pipe (10) is connected to a branch pipe (18), the other end of the branch pipe (18) is connected to the branch pipe (18), a through hole is opened on the outer side of the collecting tank (19), and a push rod (22) is movably connected inside the storage pipe (21).

8. The die-casting device for a new energy vehicle battery pack shell according to claim 1, characterized in that: One end of the drive shaft (20) is rotatably connected to the output end of the motor. A protrusion (23) is fixedly connected to the outside of the drive shaft (20). A slot (25) is provided inside the speed-changing roller (24). The inner diameter of the slot (25) matches the outer diameter of the protrusion (23). The drive shaft (20) passes through the collecting tank (19) and is plugged into the speed-changing roller (24).

9. The die-casting device for a new energy vehicle battery pack shell according to claim 1, characterized in that: One end of the speed-changing roller (24) close to the collecting tank (19) is movably connected to a turntable (26), one end of the turntable (26) is connected to a spring (27), the other end of the spring (27) is connected to the base (1), and one end of the conveyor belt B (11) is provided with a conveyor belt C (28).

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