Rapid cooling device and method for battery shell forming
By designing a fast cooling device, using coolant circulation and bidirectional screw-driven belt drive, the problem of slow cooling and shaping speed in battery case production is solved, and production efficiency is improved and resource conservation is achieved.
Patent Information
- Application Number
- CN202510201436.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-04-29
AI Technical Summary
In the production of existing battery housings, the cooling and shaping process is slow, resulting in low production efficiency.
A rapid cooling device is designed, including a first water storage tank, a bidirectional lead screw, a plastic block and a coolant circulation system, and the rapid cooling and shaping of the battery housing is achieved through a belt drive driven by a coolant circulation and a bidirectional lead screw.
It significantly accelerates the cooling and shaping speed of the battery case, improves production efficiency, and realizes the recycling of coolant, saving resources.
Smart Images

Figure CN119898007A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of battery shell production, and in particular to a rapid cooling device and method for battery shell molding. Background Art
[0002] Batteries have the advantages of high energy density, good safety performance and low cost, and have broad application prospects in the field of new energy. Generally, batteries have protective shells, and the main purpose of the shell is to protect the internal materials of the battery from damage;
[0003] At present, the battery shell production mainly uses the injection molding process. After the injection molding is completed, the shell needs to be cooled to form it. However, the existing cooling method generally uses natural cooling, which causes the shell to be formed slowly. Therefore, the injection molding structure cannot be immediately injected for the second time, affecting the production efficiency.
[0004] In view of the above problems, the inventors propose a rapid cooling device and method for battery casing molding to solve the above problems. Summary of the invention
[0005] In order to solve the problem that the existing battery shell has slow shaping and cooling during production, the purpose of the present invention is to provide a rapid cooling device and method for battery shell molding.
[0006] To solve the above technical problems, the present invention adopts the following technical solutions: a rapid cooling device and method for battery shell molding, comprising a first water tank, a symmetrically distributed first fixing plate is fixedly provided on the upper surface of the first water tank, a symmetrically distributed bidirectional lead screw is commonly rotated between the two first fixing plates, both ends of the bidirectional lead screw are threadedly provided with symmetrically distributed first positioning blocks, two adjacent first positioning blocks are commonly fixedly provided with a second positioning block at one end away from the first water tank, a second fixing plate is fixedly provided on the first fixing plate, the second fixing plate is in an inverted L shape, a third fixing plate is commonly fixedly provided at one end of the two second fixing plates away from the first fixing plate, a symmetrically distributed baffle is fixedly provided on the upper surface of the first water tank, and a plurality of through grooves are opened through the upper surface of the first water tank.
[0007] Preferably, a molding block is provided through the third fixed plate, a molding groove is formed between the molding block and the second positioning block, an injection port is provided through the third fixed plate, and the injection port is communicated with the molding groove. The injection port allows the staff to add the shell raw material into the molding groove through the injection port, thereby shaping the battery shell.
[0008] Preferably, a belt is rotatably arranged between the two bidirectional screws, and the belt is connected to the bidirectional screw via a pulley. When the first motor drives one bidirectional screw, the driven bidirectional screw will drive the other bidirectional screw to rotate synchronously because the belt is rotatably arranged between the two bidirectional screws.
[0009] Preferably, a first motor is fixedly arranged on a first fixed plate away from the belt, and an end portion of an output shaft of the first motor is fixedly arranged on an end of a bidirectional lead screw away from the belt. Since a bidirectional lead screw is fixedly arranged on an end portion of the output shaft of the first motor, and a belt is arranged for rotation between the two bidirectional lead screws, the first motor can be used to drive the two bidirectional lead screws at the same time.
[0010] Preferably, the upper surface of the third fixed plate is fixedly provided with symmetrically distributed connecting blocks, the connecting blocks are provided with slide grooves, and a third positioning block is slidably provided between the two slide grooves, and the third positioning block is fixedly provided on the upper surface of the molding block. The staff can move the position of the third positioning block in the slide groove by rotating the screw rod. Since the third positioning block is fixedly provided on the upper surface of the molding block, the molding block can be moved upward after the battery shell is molded and cooled, so that the molding block is separated from the cooled battery shell, thereby realizing the demolding of the battery shell.
[0011] Preferably, a fourth fixing plate is fixedly provided at one end of the two connecting blocks away from the third fixing plate, a screw rod is rotatably provided on the fourth fixing plate, and the third positioning block is threadedly provided on the screw rod, so that the staff can adjust the height of the third positioning block by rotating the screw rod, and the third positioning block is fixedly provided on the upper surface of the molding block, so that when the third positioning block is moved, the molding block can be driven to move synchronously.
[0012] Preferably, a first bevel gear is fixedly provided at one end of the screw rod away from the third fixed plate, a second motor is fixedly provided on the upper surface of the fourth fixed plate, a second bevel gear is fixedly provided on the end of the output shaft of the second motor, the first bevel gear and the second bevel gear are meshed with each other, when the staff wants to adjust the height of the plastic block, the staff can start the second motor, because a third positioning block is fixedly provided on the upper surface of the molding block, and the third positioning block is threaded on the screw rod, a first bevel gear is fixedly provided at one end of the screw rod away from the molding block, a second bevel gear is fixedly provided on the end of the output shaft of the second motor, and the first bevel gear and the second bevel gear are meshed with each other, so when the second motor is working, it will drive the screw rod to rotate, thereby driving the molding block to rise and fall.
[0013] Preferably, a limit block is fixedly provided at one end of the screw rod close to the molding block, and the limit block can limit the position of the third positioning block on the screw rod to prevent the molding block from being too close to the second positioning block due to too low height, resulting in inconsistent thickness of different battery casings.
[0014] Preferably, the upper surface of the fourth fixing plate is fixedly provided with symmetrically distributed fourth positioning blocks, and the second water tank is fixedly provided on one end of the two fourth positioning blocks away from the fourth fixing plates, and the second water tank is fixedly provided with a first hose, and the end of the first hose away from the second water tank is fixedly provided on the second positioning block, and the end of the first hose away from the second water tank is penetrated by a drain port, and a water pump is fixedly provided on one end of the second fixing plate away from the first fixing plate, and a second hose is fixedly provided on one side of the first water tank, and the end of the second hose away from the first water tank is fixedly provided on the water pump, and the second water tank is away from the first hose A third hose is fixedly provided at one end, and an end of the third hose away from the second water tank is fixedly provided on the water pump, so that the coolant in the second water tank can be discharged through the first hose, and the coolant will cool down the second positioning block when it passes through the second positioning block. Since a molding groove is formed between the two second positioning blocks and the molding block, the second positioning block can be cooled, so that the shell material in the molding groove can be cooled and shaped. After passing through the second positioning block, the coolant will be discharged through the drain port and enter the first water tank through the through groove. Subsequently, under the action of the water pump, the coolant in the first water tank will be transported to the second water tank, so as to realize the recycling of the coolant.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. The battery shell can be shaped and cooled by the mutual cooperation among the first water storage tank, the first fixing plate, the bidirectional screw, the first positioning block, the second positioning block, the second fixing plate, the third fixing plate, the molding block, the molding groove, the connecting block, the fourth fixing plate, the second water storage tank, the first hose, the water pump, the second hose and the third hose. Compared with the traditional method, the cooling speed is faster, which can increase the production efficiency of the battery shell;
[0017] 2. The cooled battery housing can be demoulded quickly through the cooperation among the first water storage tank, the first fixing plate, the bidirectional lead screw, the first positioning block, the second positioning block, the second fixing plate, the third fixing plate, the molding block, the molding groove, the injection port, the belt, the first motor, the connecting block, the slide groove, the third positioning block, the fourth fixing plate, the lead screw, the first bevel gear, the second motor, the second bevel gear and the limit block;
[0018] 3. Through the cooperation among the first water tank, the first fixing plate, the second positioning block, the baffle, the through groove, the second water tank, the first hose, the drain port, the water pump, the second hose and the third hose, the coolant discharged from the first hose can enter the first water tank through the through groove and be re-delivered to the second water tank through the water pump, thereby realizing recycling and saving resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0021] Figure 2 It is a structural schematic diagram of the bidirectional lead screw of the present invention.
[0022] Figure 3 This is a schematic diagram of the internal structure of the second positioning block of the present invention.
[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A.
[0024] Figure 5 It is a schematic diagram of the limit block structure of the present invention.
[0025] Figure 6 This is a structural schematic diagram of the third positioning block of the present invention.
[0026] Figure 7 It is a schematic diagram of the screw rod structure of the present invention.
[0027] Figure 8 Schematic diagram of the coolant circulation route of the present invention.
[0028] In the figure: 1. first water storage tank; 11. first fixed plate; 12. bidirectional lead screw; 13. first positioning block; 14. second positioning block; 15. second fixed plate; 16. third fixed plate; 17. baffle; 18. through groove; 19. molding block; 2. molding groove; 21. injection port; 22. belt; 23. first motor; 24. connecting block; 25. third positioning block; 26. fourth fixed plate; 27. lead screw; 28. first bevel gear; 29. second motor; 3. second bevel gear; 31. limit block; 32. fourth positioning block; 33. second water storage tank; 34. first hose; 35. slide; 36. water pump; 37. second hose; 38. third hose; 39. drain outlet. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] like Figure 1-8 As shown, the present invention provides a rapid cooling device for battery shell molding, comprising a first water storage tank 1, a symmetrically distributed first fixing plate 11 is fixedly provided on the upper surface of the first water storage tank 1, a symmetrically distributed bidirectional screw 12 is rotatably provided between the two first fixing plates 11, both ends of the bidirectional screw 12 are threadedly provided with symmetrically distributed first positioning blocks 13, two adjacent first positioning blocks 13 are commonly fixedly provided with a second positioning block 14 at one end away from the first water storage tank 1, a second fixing plate 15 is fixedly provided on the first fixing plate 11, the second fixing plate 15 is in an inverted L shape, a third fixing plate 16 is commonly fixedly provided at one end of the two second fixing plates 15 away from the first fixing plate 11, a symmetrically distributed baffle 17 is fixedly provided on the upper surface of the first water storage tank 1, and a plurality of through grooves 18 are opened through the upper surface of the first water storage tank 1.
[0031] A molding block 19 is provided through the third fixing plate 16 , a molding groove 2 is formed between the molding block 19 and the second positioning block 14 , and an injection port 21 is provided through the third fixing plate 16 , which is communicated with the molding groove 2 .
[0032] By adopting the above technical solution, the injection port 21 can facilitate the staff to add the shell raw material into the molding groove 2 through the injection port 21, so as to shape the battery shell.
[0033] A belt 22 is rotatably arranged between the two bidirectional lead screws 12 , and the belt 22 is transmission-connected to the bidirectional lead screws 12 via a pulley.
[0034] By adopting the above technical solution, when the first motor 23 drives a bidirectional lead screw 12, since the belt 22 is provided for common rotation between the two bidirectional lead screws 12, the driven bidirectional lead screw 12 will drive the other bidirectional lead screw 12 to rotate synchronously.
[0035] A first motor 23 is fixedly mounted on the first fixed plate 11 at a side away from the belt 22 , and an end of an output shaft of the first motor 23 is fixedly mounted at an end of the bidirectional lead screw 12 at a side away from the belt 22 .
[0036] By adopting the above technical solution, since the bidirectional screw 12 is fixedly provided at the end of the output shaft of the first motor 23, and a belt 22 is provided between the two bidirectional screws 12 for common rotation, the first motor 23 can be used to drive the two bidirectional screws 22 at the same time.
[0037] The upper surface of the third fixed plate 16 is fixedly provided with symmetrically distributed connecting blocks 24 , the connecting blocks 24 are provided with sliding grooves 35 , a third positioning block 25 is slidingly provided between the two sliding grooves 35 , and the third positioning block 25 is fixedly provided on the upper surface of the molding block 19 .
[0038] By adopting the above technical solution, the staff can move the position of the third positioning block 25 in the slide groove 35 by rotating the screw rod 27. Since the third positioning block 25 is fixedly set on the upper surface of the molding block 19, the molding block 19 can be moved upward after the battery shell is molded and cooled, so that the molding block 19 is separated from the cooled battery shell, thereby realizing the demolding of the battery shell.
[0039] A fourth fixing plate 26 is fixedly provided at one end of the two connecting blocks 24 away from the third fixing plate 16 . A screw rod 27 is rotatably provided on the fourth fixing plate 26 . The third positioning block 25 is threadedly provided on the screw rod 27 .
[0040] By adopting the above technical solution, the staff can adjust the height of the third positioning block 25 by rotating the screw rod 27, and the third positioning block 25 is fixedly set on the upper surface of the molding block 19, so when the third positioning block 25 is moved, the molding block 19 can be driven to move synchronously.
[0041] A first bevel gear 28 is fixedly provided at one end of the screw rod 27 away from the third fixed plate 16, a second motor 29 is fixedly provided on the upper surface of the fourth fixed plate 26, a second bevel gear 3 is fixedly provided at the output shaft end of the second motor 29, and the first bevel gear 28 and the second bevel gear 3 are meshed with each other.
[0042] By adopting the above technical solution, when the staff wants to adjust the height of the plastic block 19, the staff can start the second motor 29. Because the upper surface of the molding block 19 is fixedly provided with a third positioning block 25, and the third positioning block 25 is threaded on the screw rod 27, and the end of the screw rod 27 away from the molding block 19 is fixedly provided with a first bevel gear 28, and the output shaft end of the second motor 29 is fixedly provided with a second bevel gear 3, and the first bevel gear 28 and the second bevel gear 3 are meshed with each other. Therefore, when the second motor 29 is working, it will drive the screw rod 27 to rotate, thereby driving the molding block 19 to rise and fall.
[0043] A limit block 31 is fixedly disposed on one end of the screw rod 27 close to the molding block 19 .
[0044] By adopting the above technical solution, the limit block 31 can limit the position of the third positioning block 25 on the screw rod 27 to prevent the molding block 19 from being too close to the second positioning block 14 due to the height being too low, resulting in uneven thickness of different battery casings.
[0045] The upper surface of the fourth fixed plate 26 is fixedly provided with symmetrically distributed fourth positioning blocks 32, and a second water tank 33 is fixedly provided on one end of the two fourth positioning blocks 32 away from the fourth fixed plate 26, a first hose 34 is fixedly provided on the second water tank 33, and one end of the first hose 34 away from the second water tank 33 is fixedly provided on the second positioning block 14, and a drain outlet 39 is penetrated through one end of the first hose 34 away from the second water tank 33, a water pump 36 is fixedly provided on one end of the second fixed plate 15 away from the first fixed plate 11, a second hose 37 is fixedly provided on one side of the first water tank 1, and one end of the second hose 37 away from the first water tank 1 is fixedly provided on the water pump 36, a third hose 38 is fixedly provided on one end of the second water tank 33 away from the first hose 34, and one end of the third hose 38 away from the second water tank 33 is fixedly provided on the water pump 36.
[0046] By adopting the above technical solution, the coolant in the second water tank 33 can be discharged through the first hose 34. When the coolant passes through the second positioning block 14, the second positioning block 14 will be cooled. Since the two second positioning blocks 14 and the molding block 19 form a molding groove 2 together, the second positioning block can be cooled to shape the shell material in the molding groove 2. After passing through the second positioning block 14, the coolant will be discharged through the drain port 39 and enter the first water tank 1 through the through groove 18. Subsequently, under the action of the water pump 36, the coolant in the first water tank 1 will be transported to the second water tank 33 to realize the recycling of the coolant.
[0047] Working principle: When in use, the staff can start the first motor 23, because the output shaft end of the first motor 23 is fixedly provided with a bidirectional screw 12, the two bidirectional screws 12 are provided with a belt 22 at one end away from the first motor 23, and the two bidirectional screws 12 are provided with symmetrically distributed first positioning blocks 13 on the thread, and the two adjacent first positioning blocks 13 are provided with a second positioning block 14 at one end away from the first water storage tank 1, and the first fixing plate 1 is fixedly provided with an inverted L-shaped second fixing plate 15, and the two second fixing plates 15 are away from the first fixing plate 1. The fixed plate 11 is fixedly provided with a third fixed plate 16, and the third fixed plate 16 is penetrated with a molding block 19. Therefore, when the first motor 23 works, it will drive the two bidirectional screws 12 to rotate synchronously. Driven by the bidirectional screw 12, the two second positioning blocks 14 will gradually approach the molding block 19 and form a molding groove 2 with the molding block 19. Then the staff can add the melted shell material into the molding groove 2 through the injection port 21. Then the staff can start the water pump 36. Because the second hose 37 and the second hose 38 are fixedly provided on one side of the first water storage tank 1, The end of the hose 37 away from the first water tank 1 is fixedly arranged on the water pump 36, the end of the second water tank 33 away from the first hose 34 is fixedly arranged with the third hose 38, and the end of the third hose 38 away from the second water tank 33 is fixedly arranged on the water pump 36. Therefore, when the water pump 36 is working, the coolant in the first water tank 1 will pass through the second hose 37 and the third hose 38 in sequence, and then enter the second water tank 33. The coolant in the second water tank 33 will be discharged through the first hose 34. Since the end of the first hose 34 away from the second water tank 33 It is fixedly arranged on the second positioning block 14, so when the coolant in the first hose 34 passes through the second positioning block 14, the second positioning block 14 will be cooled down. Since the two second positioning blocks 14 and the molding block 19 form a molding groove 2 together, the heat of the battery material in the molding groove 2 will be transferred to the second positioning block 14, and the battery material in the molding groove 2 can be cooled and formed by absorbing the heat on the second positioning block 14. The coolant that has absorbed heat will be discharged through the drain port 39 and re-enter the first water storage tank 1 through the through groove 18 to form a cycle;
[0048] After the battery shell is shaped and cooled, the staff can start the second motor 29. Because the third fixed plate 16 is fixed with symmetrically distributed connecting blocks 24, the connecting blocks 24 are provided with slide grooves 35, and the third positioning block 25 is slidably arranged between the two slide grooves 35, the two connecting blocks 24 are fixed with a fourth fixing plate 26 at one end away from the third fixed plate 16, the fourth fixing plate 26 is rotatably provided with a screw rod 27, the third positioning block 25 is threadedly arranged on the screw rod 27, the lower surface of the third positioning block 25 is fixed with a molding block 19, and the end of the screw rod 27 away from the molding block 19 is fixed with a first bevel gear 28, and the second motor 29 A second bevel gear 3 is fixedly provided on the end of the output shaft, and the first bevel gear 28 meshes with the second bevel gear 3. Therefore, when the second motor 29 is working, the second bevel gear 3 is rotated, and the rotation of the second bevel gear 3 drives the first bevel gear 28 to rotate. When the first bevel gear 28 rotates, the screw rod 27 will rotate synchronously, and the rotation of the screw rod 27 drives the molding block 19 to move upward, so that the molding block 19 is separated from the cooled battery shell, and then the first motor 23 is rotated in the opposite direction to gradually move the two second positioning blocks 14 away from each other, so that the battery shell is separated from the second positioning block 14, thereby taking out the cooled and shaped battery shell.
[0049] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A rapid cooling device for battery shell molding, comprising a first water storage tank (1), characterized in that: A symmetrically distributed first fixing plate (11) is fixedly provided on the upper surface of the first water storage tank (1), a symmetrically distributed bidirectional screw (12) is rotatably provided between the two first fixing plates (11), a symmetrically distributed first positioning block (13) is threadedly provided at both ends of the bidirectional screw (12), a second positioning block (14) is fixedly provided at one end of two adjacent first positioning blocks (13) away from the first water storage tank (1), a second fixing plate (15) is fixedly provided on the first fixing plate (11), the second fixing plate (15) is in an inverted L shape, a third fixing plate (16) is fixedly provided at one end of the two second fixing plates (15) away from the first fixing plate (11), a symmetrically distributed baffle plate (17) is fixedly provided on the upper surface of the first water storage tank (1), and a plurality of through grooves (18) are provided through the upper surface of the first water storage tank (1).
2. A rapid cooling device for battery shell molding as claimed in claim 1, characterized in that: A molding block (19) is provided through the third fixing plate (16), a molding groove (2) is formed between the molding block (19) and the second positioning block (14), and an injection molding port (21) is provided through the third fixing plate (16), and the injection molding port (21) is communicated with the molding groove (2).
3. A rapid cooling device for battery shell molding as claimed in claim 1, characterized in that: A belt (22) is rotatably arranged between the two bidirectional screws (12), and the belt (22) and the bidirectional screws (12) are transmission-connected via a pulley.
4. A rapid cooling device for battery shell molding as claimed in claim 3, characterized in that: A first motor (23) is fixedly arranged on a first fixed plate (11) at a side away from the belt (22), and an output shaft end of the first motor (23) is fixedly arranged at an end of a bidirectional lead screw (12) at a side away from the belt (22).
5. A rapid cooling device for battery shell molding as claimed in claim 2, characterized in that: The upper surface of the third fixed plate (16) is fixedly provided with symmetrically distributed connecting blocks (24), the connecting blocks (24) are provided with sliding grooves (35), a third positioning block (25) is slidably provided between two of the sliding grooves (35), and the third positioning block (25) is fixedly provided on the upper surface of the molding block (19).
6. A rapid cooling device for battery shell molding as claimed in claim 5, characterized in that: A fourth fixing plate (26) is fixedly arranged at one end of the two connecting blocks (24) away from the third fixing plate (16), a screw rod (27) is rotatably arranged on the fourth fixing plate (26), and the third positioning block (25) is threadedly arranged on the screw rod (27).
7. A rapid cooling device for battery shell molding as claimed in claim 6, characterized in that: A first bevel gear (28) is fixedly arranged at one end of the screw rod (27) away from the third fixed plate (16), a second motor (29) is fixedly arranged on the upper surface of the fourth fixed plate (26), a second bevel gear (3) is fixedly arranged at the end of the output shaft of the second motor (29), and the first bevel gear (28) and the second bevel gear (3) are meshed with each other.
8. A rapid cooling device for battery shell molding as claimed in claim 6, characterized in that: A limit block (31) is fixedly provided at one end of the screw rod (27) close to the molding block (19).
9. A rapid cooling device for battery shell molding as claimed in claim 6, characterized in that: The upper surface of the fourth fixing plate (26) is fixedly provided with symmetrically distributed fourth positioning blocks (32); the ends of the two fourth positioning blocks (32) away from the fourth fixing plate (26) are jointly fixedly provided with a second water storage tank (33); the second water storage tank (33) is fixedly provided with a first hose (34); the end of the first hose (34) away from the second water storage tank (33) is fixedly provided on the second positioning block (14); the end of the first hose (34) away from the second water storage tank (33) is penetrated by a drain port (34); 9), a water pump (36) is fixedly arranged at one end of the second fixing plate (15) away from the first fixing plate (11), a second hose (37) is fixedly arranged at one side of the first water storage tank (1), and the end of the second hose (37) away from the first water storage tank (1) is fixedly arranged on the water pump (36), and a third hose (38) is fixedly arranged at one end of the second water storage tank (33) away from the first hose (34), and the end of the third hose (38) away from the second water storage tank (33) is fixedly arranged on the water pump (36).
10. A method for using a rapid cooling device for battery shell molding as claimed in claims 1 to 9, characterized in that: The steps to use are as follows: S1: starting the first motor (23) to drive the bidirectional lead screw (12), so that the two second positioning blocks (14) move toward the molding block (19) and form a molding groove (2) between the molding block (19), and adding the raw materials for producing the battery shell into the molding groove (2) through the injection port (21); S2: After the raw materials for producing the battery shell are added to the molding groove (2), the water pump (36) is started to allow the coolant in the first water tank (1) to enter the second water tank (33) through the second hose (37) and the third hose (38), and then be discharged through the first hose (34). When the coolant passes through the second positioning block (14), the second positioning block (14) is cooled. Since the molding groove (2) is formed between the two second positioning blocks (14) and the molding block (19), the heat of the shell raw materials in the molding groove (2) will be absorbed by the second positioning block (14). By cooling the second positioning block (14), the shell raw materials in the molding groove (2) are shaped and cooled. S3: After the battery shell is shaped and cooled, the second motor (29) is started to drive the screw (27) to move the molding block (19) upwards, so that the molding block (19) is separated from the cooled battery shell. At the same time, the first motor (23) is reversed to gradually move the two second positioning blocks (14) away from the molding block (19), so that the cooled battery shell is separated from the second positioning blocks (14), thereby demoulding the cooled battery shell; S4: The coolant discharged from the first hose (34) is discharged through the drain port (39), and re-enters the first water storage tank (1) through the through groove (18), and then re-enters the second water storage tank (33) driven by the water pump (36) for recycling.