Lithium ion battery injection molding mold

Abstract

The invention relates to the technical field of forming molds, in particular to a lithium ion battery injection molding mold which comprises a machining table set, the machining table set comprises a table top box plate, a positioning ring is installed at the top end of the table top box plate, a driving part is installed in the table top box plate through a cavity, and a mold closing part is installed on the back face of the table top box plate; the driving part comprises a rotating disc rotationally mounted in the positioning ring disc groove, and a plurality of lower modules are fixed to the surface of the rotating disc through clamping parts; and the mold closing part comprises an external connecting plate fixedly connected with the back face of the table top box plate, the top end of the external connecting plate is connected with a beam plate, and a hydraulic push rod B is installed at the top end of the beam plate. By arranging the rotatable rotating disc and the multiple lower modules, multi-station parallel operation such as injection molding, cooling and demolding is achieved, non-productive time waste caused by the links such as mold opening and closing and ejection of a traditional mold is effectively reduced, and the mold is particularly suitable for the large-scale continuous production requirement of lithium ion battery shells.

Description

Technical Field

[0001] This invention relates to the field of molding die technology, and in particular to a lithium-ion battery injection molding die. Background Technology

[0002] With the rapid development of the new energy vehicle and consumer electronics industries, the demand for lithium-ion batteries, as a core power source and energy storage unit, has exploded. The sealing and consistency of the battery structure are crucial to ensuring its safety and cycle life; therefore, the battery casing and precision structural components are typically integrally molded using injection molding. In this process, the performance of the injection mold directly determines the production efficiency and quality of the product.

[0003] Currently, most traditional injection molds widely used in the industry have an upper and lower opening and closing structure. The workflow is as follows: molten plastic is injected into a closed cavity through an injection molding machine. After holding pressure and cooling, the upper and lower molds open, and the ejector mechanism ejects the molded part to achieve demolding. Subsequently, the mold closes again, and the next injection cycle begins. However, this traditional model has significant bottlenecks: First, the entire production cycle includes multiple stages such as injection, cooling, mold opening, ejection, and mold closing. Among these, mold opening and closing and ejection consume a significant amount of non-productive time, severely limiting the improvement of production efficiency and making it difficult to meet the needs of large-scale mass production. Second, frequent ejection actions can easily cause damage such as whitening, scratches, or slight deformation to the surface of the precision plastic part that has not been fully cooled. This is especially true in fields such as battery casings, where dimensional accuracy and appearance integrity are extremely important, leading to a loss of product yield. Therefore, a lithium-ion battery injection molding mold is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lithium-ion battery injection molding die includes a processing table assembly. The processing table assembly includes a tabletop panel. A positioning ring is installed on the top of the tabletop panel. A driving component is installed inside the tabletop panel through a cavity. A mold closing part is installed on the back of the tabletop panel. The processing table assembly serves as a stable support platform. The positioning ring is used to ensure the concentricity and flatness of the turntable rotation. The driving component provides power for multi-station switching. The mold closing part enables precise mold closing. Together, they constitute an efficient and stable injection molding system.

[0007] The driving component includes a turntable rotatably installed inside the positioning ring groove. Several lower modules are fixed on the surface of the turntable through snap-fit ​​parts. The turntable serves as a station conversion carrier. Its multi-station design is the key to achieving parallel processing and shortening the cycle. The snap-fit ​​parts enable the lower modules to be quickly installed and fixed, improving production flexibility and mold replacement efficiency.

[0008] The mold closing part includes an outer plate that is connected and fixed to the back of the tabletop box plate. A beam plate is connected to the top of the outer plate, and a hydraulic push rod B is installed at the top of the beam plate. The piston rod end of the hydraulic push rod B passes through the beam plate and is connected and fixed to the top of the upper mold plate. Several positioning rods are provided at the top of the upper mold plate, and the positioning rods pass through the interior of the beam plate through through holes.

[0009] Preferably, the tabletop box chamber has two hollow plates connected to each other on the left and right sides. The driving component includes a turntable movably installed inside the positioning ring. A cap shaft is connected to the center of the top of the turntable, and a rotating shaft is fixed inside the cap shaft. The rotating shaft passes through the turntable and the tabletop box and is connected and fixed to the top of the auxiliary gear. By fixing the cap shaft inside the cap shaft, the cap shaft is fixed at the center of the top of the turntable, effectively preventing the turntable from eccentrically shaking when rotating.

[0010] Preferably, the surface of the secondary gear meshes with the primary gear through teeth, and the bottom end of the primary gear shaft passes through the top end of the frame plate and is connected and fixed to the end of the drive motor shaft. The drive motor is installed inside the frame plate, and the frame plate is fixed inside the cavity of the tabletop box plate. The meshing of the primary gear and the secondary gear, with a large and small diameter design, forms a speed-changing component, which increases the torque of the drive turntable and reduces the workload of the drive motor. The bottom end of the secondary gear shaft is rotatably connected to the frame plate to ensure the stability of the secondary gear rotation.

[0011] Preferably, a plurality of balls are mounted around the side of the turntable via ball grooves, and the surface of the balls abuts against the inner wall of the positioning ring groove. When the turntable rotates in the positioning ring groove, the balls on the side of the turntable are supported by the inner wall of the positioning ring, which can effectively prevent the turntable from shaking and ensure the stability of the turntable rotation.

[0012] Preferably, the lower module includes a mold base placed on the surface of a turntable. A lower mold plate is connected to the top of the mold base. A groove is formed at the center of the surface of the mold base, and an inner liner is installed inside the groove. A hydraulic push rod A is installed at the center of the top of the mold base. The piston rod end of the hydraulic push rod A passes through the inner liner and is connected and fixed to the bottom end of the movable plate. A plurality of push rods A are provided at the top of the movable plate. The push rods A are inserted into the mold cavity of the lower mold plate through through holes. A groove is formed at the center of the top of the mold base. The groove can provide a cavity for receiving the hydraulic push rod A, the inner liner, and the movable plate.

[0013] Preferably, a push rod B is provided at the middle position of the top of the movable plate, and the push rod B is inserted into the injection groove of the lower mold plate through a through hole. When the movable plate moves up to push the push rod A to lift and demold the mold in the mold cavity of the lower mold plate, the push rod B can be pushed to move simultaneously, so that the push rod B can demold the remaining linear connecting parts in the injection groove tube when the lower mold plate and the upper mold plate are closed.

[0014] Preferably, the snap-fit ​​part includes a threaded insert shaft, which is inserted into the turntable through a slot. A lower receiving plate is connected to the surface of the threaded insert shaft, and the top of the lower receiving plate is connected to the upper pressure plate through a support spring. The upper pressure plate is sleeved on the threaded section surface of the threaded insert shaft. A screw cap is threadedly sleeved on the top of the threaded insert shaft, and the bottom end of the screw cap contacts the top surface of the upper pressure plate. A snap-fit ​​part is provided on the side of the upper pressure plate. The protrusion on the surface of the threaded insert shaft moves along the guide groove into the fan-shaped snap-fit ​​groove. At this time, the threaded insert shaft can be rotated clockwise to control the protrusion of the threaded insert shaft to snap back into the fan-shaped snap-fit ​​groove. The upper section of the threaded insert shaft is a threaded end, and the lower section is a smooth cylindrical section. By moving the screw cap on the surface of the threaded section of the upper half of the threaded insert shaft, the screw cap can press down on the upper pressure plate during movement. The movement of the upper pressure plate, in conjunction with the guide plate, drives the snap-fit ​​plate to move, controlling the snap-fit ​​and fastening state between the snap-fit ​​plate and the mold base groove.

[0015] Preferably, the snap-fit ​​component includes a connecting plate fixed to the sides of the two upper pressure plates, and a threaded shaft is inserted into the center of the side of the connecting plate through a threaded hole. The end of the threaded shaft is rotatably mounted on the side of the snap-fit ​​plate, and the snap-fit ​​plate is snapped onto the side of the mold base through a groove. A protrusion is provided on the bottom side of the snap-fit ​​plate, and the protrusion is embedded into the groove of the mold base through a groove. The end of the threaded shaft has a hexagonal structure, and an internal hexagonal groove is opened on the right side of the threaded shaft to facilitate the adjustment by the operator using various tools.

[0016] Preferably, the card plate has a transverse U-shaped cross-section, and guide plates are symmetrically connected to the U-shaped parallel plate ends of the card plate. The guide plates are inserted into the side of the upper pressure plate through guide grooves. By pulling the guide plates in the guide grooves on the side of the upper pressure plate, the position of the card plate can be easily changed, making the card plate adjustable and controlling the engagement state between the card plate and the side groove of the mold base.

[0017] This invention has at least the following beneficial effects:

[0018] 1. By setting up a rotatable turntable and multiple lower mold groups, it realizes parallel operation of multiple stations such as injection molding, cooling, and demolding, which effectively reduces the non-productive time waste caused by traditional mold opening and closing, ejection and other links. It is especially suitable for the large-scale continuous production needs of lithium-ion battery shells.

[0019] 2. The hydraulically controlled ejector rods A and B are linked with the movable plate, and a precise mold closing and positioning structure ensures a smooth and uniform ejection process. The three-stage mold closing and demolding design provides more cooling time after the battery casing mold is formed, avoiding damage such as whitening, scratches, or deformation that may occur when the mold is not fully cooled. At the same time, it ensures the mold closing accuracy and effectively guarantees the dimensional consistency and appearance integrity of the battery casing.

[0020] 3. The turntable is driven by a gear system and supplemented by ball bearings, ensuring smooth operation and accurate positioning. The lower mold is fixed by a snap-fit ​​part that can be quickly installed and removed, which not only ensures the rigid connection of the mold under high-speed operation, but also facilitates replacement and maintenance, thereby improving the applicability and service life of the mold. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the external structure of a lithium-ion battery injection molding die proposed in this invention;

[0023] Figure 2 This is a three-dimensional bottom-view disassembly diagram of the processing table assembly in a lithium-ion battery injection molding die proposed in this invention;

[0024] Figure 3 This is a three-dimensional disassembly diagram of the driving component in a lithium-ion battery injection molding die proposed in this invention;

[0025] Figure 4 This is a schematic diagram of the placement structure of the lower module in a lithium-ion battery injection molding die proposed in this invention.

[0026] Figure 5 This is a three-dimensional disassembly diagram of the snap-fit ​​part in a lithium-ion battery injection mold proposed in this invention;

[0027] Figure 6 This is a partial disassembly diagram of the snap-fit ​​part in a lithium-ion battery injection mold proposed in this invention;

[0028] Figure 7 This is a schematic diagram of the internal disassembly structure of the lower module in a lithium-ion battery injection molding die proposed in this invention;

[0029] Figure 8This is a three-dimensional bottom view of the mold closing section in a lithium-ion battery injection molding die proposed in this invention.

[0030] In the picture:

[0031] 1. Machining table assembly; 11. Tabletop panel; 12. Positioning ring; 13. Hollowed-out plate; 14. Drive components; 141. Frame plate; 142. Drive motor; 143. Main gear; 144. Secondary gear; 145. Rotary shaft; 146. Hat shaft; 147. Turntable; 148. Ball bearing;

[0032] 2. Snap-fit ​​part; 21. Threaded insert shaft; 22. Lower receiving plate; 23. Support spring; 24. Upper pressure plate; 25. Rotary cap; 26. Snap-fit ​​part; 261. Guide plate; 262. Clip plate; 263. Threaded rotating shaft; 264. Connecting plate;

[0033] 3. Lower module; 31. Mold base; 32. Lower mold plate; 33. Hydraulic push rod A; 34. Inner liner plate; 35. Movable plate; 36. Push rod A; 37. Push rod B;

[0034] 4. Mold closing part; 41. Outer plate; 42. Beam plate; 43. Hydraulic push rod B; 44. Upper mold plate; 45. Positioning rod. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0036] Reference Figures 1-8 A lithium-ion battery injection molding die includes a processing table assembly 1, which includes a table panel 11. A positioning ring 12 is installed on the top of the table panel 11, a driving component 14 is installed inside the table panel 11 through a cavity, and a mold closing part 4 is installed on the back of the table panel 11.

[0037] The drive component 14 includes a turntable 147 rotatably mounted inside the groove of the positioning ring 12, and a plurality of lower modules 3 are fixed on the surface of the turntable 147 through the snap-fit ​​part 2.

[0038] The mold closing part 4 includes an outer plate 41 that is connected and fixed to the back of the table box plate 11. The top of the outer plate 41 is connected to a beam plate 42, and a hydraulic push rod B43 is installed at the top of the beam plate 42. The piston rod end of the hydraulic push rod B43 passes through the beam plate 42 and is connected and fixed to the top of the upper mold plate 44. Several positioning rods 45 are provided at the top of the upper mold plate 44, and the positioning rods 45 pass through the interior of the beam plate 42 through through holes.

[0039] The left and right sides of the tabletop box 11 cavity have two hollow plates 13 connected together. The drive component 14 includes a turntable 147 movably installed inside the positioning ring 12. A cap shaft 146 is connected at the center of the top of the turntable 147, and a rotating shaft 145 is fixed inside the cap shaft 146. The rotating shaft 145 passes through the turntable 147 and the tabletop box 11 and is connected and fixed to the top of the auxiliary gear 144.

[0040] The surface of the auxiliary gear 144 is meshed with the main gear 143 through teeth, and the bottom end of the main gear 143 passes through the top end of the frame plate 141 and is connected and fixed to the shaft end of the drive motor 142. The drive motor 142 is installed inside the frame plate 141, and the frame plate 141 is fixed inside the cavity of the tabletop box plate 11.

[0041] A number of balls 148 are mounted around the side of the turntable 147 via ball grooves, and the surface of the balls 148 abuts against the inner wall of the positioning ring 12 groove.

[0042] The lower module 3 includes a mold base 31 placed on the surface of the turntable 147. The top of the mold base 31 is connected to a lower mold plate 32. A groove is provided at the center of the surface of the mold base 31, and an inner liner plate 34 is installed inside the groove. A hydraulic push rod A33 is installed at the center of the top of the mold base 31. The piston rod end of the hydraulic push rod A33 passes through the inner liner plate 34 and is connected and fixed to the bottom of the movable plate 35. Several push rods A36 are provided at the top of the movable plate 35, and the push rods A36 are inserted into the mold cavity of the lower mold plate 32 through through holes.

[0043] A push rod B37 is provided at the middle position of the top of the movable plate 35, and the push rod B37 is inserted into the injection groove of the lower mold plate 32 through a through hole.

[0044] The snap-fit ​​part 2 includes a threaded insert shaft 21, which is inserted into the turntable 147 through a slot. A lower receiving plate 22 is connected to the surface of the threaded insert shaft 21, and the top of the lower receiving plate 22 is connected to the upper pressure plate 24 through a support spring 23. The upper pressure plate 24 is sleeved on the threaded section surface of the threaded insert shaft 21. A screw cap 25 is threaded on the top of the threaded insert shaft 21, and the bottom end of the screw cap 25 contacts the top surface of the upper pressure plate 24. A snap-fit ​​part 26 is provided on the side of the upper pressure plate 24.

[0045] The snap-fit ​​component 26 includes a connecting plate 264 fixed to the sides of the two upper pressure plates 24, and a threaded shaft 263 is inserted into the center of the side of the connecting plate 264 through a threaded hole. The shaft end of the threaded shaft 263 is rotatably mounted on the side of the snap-fit ​​plate 262, and the snap-fit ​​plate 262 is snapped onto the side of the mold base 31 through a groove. A protrusion is provided on the bottom side of the snap-fit ​​plate 262, and the protrusion is embedded into the groove of the mold base 31 through a groove.

[0046] The cross-section of the card plate 262 is a transverse U-shaped structure. The U-shaped parallel plate ends of the card plate 262 are symmetrically connected with guide plates 261, and the guide plates 261 are inserted into the side of the upper pressure plate 24 through guide grooves.

[0047] The processing table 1 serves as a stable support platform, the positioning ring 12 ensures the concentricity and flatness of the turntable 147, the drive component 14 provides power for multi-station switching, and the mold closing part achieves precise mold closing, together forming an efficient and stable injection molding system. The turntable 147 serves as a station conversion carrier, and its multi-station design is the key to achieving parallel processing and shortening the cycle. The snap-fit ​​part 2 enables the lower mold 3 to be quickly installed and fixed, improving production flexibility and mold change efficiency. The hydraulic push rod B43 provides stable and controllable mold closing power, and the positioning rod 45 ensures the precise alignment of the upper and lower molds during the mold closing process, ensuring product dimensional accuracy and sealing performance.

[0048] The rotating shaft 145 is fixed inside the cap shaft 146, which is then fixed at the center of the top of the turntable 147. This effectively prevents the turntable 147 from eccentrically wobbling during rotation. To ensure the matching accuracy between the turntable 147 and the upper mold plate 44 when controlling the rotation and movement of the lower module 3, a sensor can be installed at the corresponding position of the lower module 3. Through multiple adjustments of the programmed data, the turntable 147 can finally achieve a precise rotation and stop state, enabling precise mold closing between the lower module 3 and the upper mold plate 44. This is achieved through the meshing of the main gear 143 and the auxiliary gear 144, with a design of large and small diameters. The transmission component is formed, which increases the torque of the drive turntable 147 and reduces the workload of the drive motor 142. The bottom end of the shaft of the secondary gear 144 is rotatably connected to the frame plate 141 to ensure the stability of the rotation of the secondary gear 144. When the turntable 147 rotates in the groove of the positioning ring 12, the ball bearings 148 on the side of the turntable 147 are supported on the inner wall of the positioning ring 12, which can effectively prevent the turntable 147 from shaking and ensure the stability of the rotation of the turntable 147. During the rotation of the turntable 147, the ball bearings 148 can be driven to rub and roll against the inner wall of the positioning ring 12 to ensure the smoothness of the rotation of the turntable 147.

[0049] A groove is provided at the center of the top of the mold base 31. The groove provides a cavity for the hydraulic push rod A33, the inner liner plate 34 and the movable plate 35. Under normal conditions, the inner liner plate 34 and the movable plate 35 are both located at the lower part of the groove of the mold base 31. When the hydraulic push rod A33 is activated, the piston rod can push the movable plate 35 by extending and retracting, and control the push rod A36 and push rod B37 to move upward to realize the operation of the mold ejection. When the movable plate 35 moves upward, it pushes the push rod A36 to lift the mold in the mold cavity of the lower mold plate 32 for demolding. At the same time, it can push the push rod B37 to move, and drive the push rod B37 to demold the remaining linear connecting parts in the injection groove tube when the lower mold plate 32 and the upper mold plate 44 are closed. This avoids the mold pulling on the connecting edge during the demolding process, which would affect the molding effect of the battery shell mold.

[0050] Two protrusions are symmetrically arranged at the bottom end of the threaded insert shaft 21. Several through holes adapted for inserting the threaded insert shaft 21 are opened on the surface of the turntable 147. Guide grooves are opened on the inner wall of the through holes, and fan-shaped snap-fit ​​grooves are opened at the end of the guide grooves. When the threaded insert shaft 21 is vertically inserted into the bottom end of the through hole of the turntable 147, the protrusions on the surface of the threaded insert shaft 21 move along the guide grooves into the fan-shaped snap-fit ​​grooves. At this time, the threaded insert shaft 21 rotates clockwise, which controls the protrusions of the threaded insert shaft 21 to snap back into the fan-shaped snap-fit ​​grooves. The upper section of the threaded insert shaft 21 is a threaded end, and the lower section is a smooth cylindrical section. By moving the nut 25 on the surface of the threaded section of the upper half of the threaded insert shaft 21, the nut 25 can press down on the upper pressure plate 24 during movement. The movement of the upper pressure plate 24, in conjunction with the guide plate 261, drives the clamping plate 262 to move, controlling the clamping and fastening state of the clamping plate 262 and the slot of the mold base 31.

[0051] The threaded shaft 263 has a hexagonal structure at its end, and an internal hexagonal groove is provided on the right side of the threaded shaft 263 to facilitate adjustment by operators using various tools. After the threaded shaft 263 is rotated and adjusted, it can push the clamping plate 262 while rotating and moving, controlling the clamping plate 262 to be embedded into the groove on the side of the mold base 31, ensuring the stability of the mold base 31 when it is placed. When the clamping plate 262 is pressed down in the groove of the mold base 31, it can drive the protrusion at the bottom of the clamping plate 262 to be embedded in the groove. The clamping plate 262 is inserted into the groove on the inner wall of the slot of the mold base 31, which further improves the stability of the mold base 31. The position of the clamping plate 262 can be easily changed by pulling the guide plate 261 in the side guide groove of the upper pressure plate 24, so that the clamping plate 262 is adjustable and controls the clamping state between the clamping plate 262 and the side slot of the mold base 31. The horizontal U-shaped structure design of the clamping plate 262 can ensure a stable pressure state on the side slot of the mold base 31 and avoid uneven pressure causing the mold base 31 to loosen and shift.

[0052] Working principle: According to Figure 3 and Figure 5 As shown, sensors are installed at the positions of each lower module 3 on the turntable 147. The rotation interval of the turntable 147 has been calibrated through a programming program. The drive motor 142 is started via an external control panel. The rotation of the drive motor 142 shaft drives the main gear 143 to rotate, which in turn drives the rotating shaft 145 to rotate. The rotating shaft 145, through the cap shaft 146, drives the turntable 147 to rotate, causing one set of lower modules 3 to be carried directly below the upper mold plate 44. At this time, according to... Figure 7 and Figure 8As shown, hydraulic push rod B43 is activated, and the piston rod end of hydraulic push rod B43 moves under hydraulic drive. The piston rod end applies downward pressure to the upper mold plate 44, controlling the upper mold plate 44 to fit with the lower mold plate 32 for mold closing. After injection molding is completed through the injection tube, the piston of hydraulic push rod B43 can retract to drive the upper mold plate 44 to move upward, thereby driving the upper mold plate 44 to separate from the lower mold plate 32. At this time, drive motor 142 is activated, repeating the above work to make the upper mold plate 44 close with the new lower mold plate 32, and repeating the process. The process continues until the third lower mold plate 32 and the upper mold plate 44 are closed. At this time, the first group has completed further cooling, extending the cooling time and improving the molding effect. The piston rod of the hydraulic push rod A33 extends and pushes the movable plate 35, causing the movable plate 35 to move upward and push the ejector rods A36 and B37 to move. The ejector rods A36 and B37 respectively push out the mold in the mold cavity of the lower mold plate 32 and the residual injection material in the injection pipe, completing the demolding. The workers remove the detached battery shell mold, and so on, to achieve rapid injection molding.

[0053] Secondly, after replacing the lower module 3 and fixing it through the snap-fit ​​part 2, according to Figure 6 and Figure 7 As shown, the threaded insert 21 can be inserted into the through hole on the surface of the turntable 147. When the threaded insert 21 is inserted into the through hole of the turntable 147, the protrusions at the two ends of the threaded insert 21 rotate with the threaded insert 21, causing the threaded insert 21 to snap into the arc-shaped groove at the bottom end of the through hole of the turntable 147. At this time, the threaded rotating shaft 263 is rotated by a tool. The threaded rotating shaft 263 rotates and moves in the threaded hole of the connecting plate 264 and pushes the clamping plate 262. The movement of the clamping plate 262 drives the guide plate 261 to move in the direction of rotation. The upper pressure plate 24 moves within the guide groove on the left side. During the movement, the clamping plate 262 can be inserted into the side groove of the mold base 31. At this time, the nut 25 is twisted so that the nut 25 rotates and moves downward on the threaded surface of the threaded insert shaft 21. The movement of the nut 25 moves and presses down on the upper pressure plate 24. The downward movement of the upper pressure plate 24 can compress the support spring 23. At the same time, the upper pressure plate 24, together with the guide plate 261, drives the clamping block at the bottom of the clamping plate 262 to be embedded and snapped into the groove of the groove of the mold base 31, ensuring the stability of the mold base 31 installed on the top of the turntable 147.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A lithium-ion battery injection molding die, comprising a processing table assembly (1), characterized in that, The processing table assembly (1) includes a tabletop box (11), a positioning ring (12) is installed at the top of the tabletop box (11), a driving component (14) is installed inside the tabletop box (11) through a cavity, and a mold closing part (4) is installed on the back of the tabletop box (11). The driving component (14) includes a turntable (147) rotatably installed inside the groove of the positioning ring (12), and a plurality of lower modules (3) are fixed on the surface of the turntable (147) through the snap-fit ​​part (2); The mold closing part (4) includes an outer plate (41) that is connected and fixed to the back of the table box plate (11). The top of the outer plate (41) is connected to a beam plate (42), and a hydraulic push rod B (43) is installed on the top of the beam plate (42). The piston rod end of the hydraulic push rod B (43) passes through the beam plate (42) and is connected and fixed to the top of the upper mold plate (44). The top of the upper mold plate (44) is provided with several positioning rods (45), and the positioning rods (45) pass through the beam plate (42) through through holes.

2. The lithium-ion battery injection molding die according to claim 1, characterized in that, The tabletop box (11) has two hollow plates (13) on its left and right sides. The driving component (14) includes a turntable (147) movably installed inside the positioning ring (12). A cap shaft (146) is connected at the center of the top of the turntable (147), and a rotating shaft (145) is fixed inside the cap shaft (146). The rotating shaft (145) passes through the turntable (147) and the tabletop box (11) and is connected and fixed to the top of the auxiliary gear (144).

3. The lithium-ion battery injection molding die according to claim 2, characterized in that, The surface of the auxiliary gear (144) is meshed with the main gear (143) by teeth, and the bottom end of the main gear (143) passes through the top end of the frame plate (141) and is connected and fixed to the shaft end of the drive motor (142). The drive motor (142) is installed inside the frame plate (141), and the frame plate (141) is fixed inside the cavity of the tabletop box plate (11).

4. The lithium-ion battery injection molding die according to claim 2, characterized in that, The turntable (147) has several balls (148) mounted around its side by a ball groove, and the surface of the balls (148) abuts against the inner wall of the positioning ring (12) groove.

5. A lithium-ion battery injection molding die according to claim 1, characterized in that, The lower module (3) includes a mold base (31) placed on the surface of the turntable (147). The top of the mold base (31) is connected to a lower mold plate (32). A groove is provided at the center of the surface of the mold base (31), and an inner liner plate (34) is installed inside the groove. A hydraulic push rod A (33) is installed at the center of the top of the mold base (31), and the piston rod end of the hydraulic push rod A (33) passes through the inner liner plate (34) and is connected and fixed to the bottom end of the movable plate (35). A plurality of push rods A (36) are provided at the top of the movable plate (35), and the push rods A (36) are inserted into the mold cavity of the lower mold plate (32) through through holes.

6. A lithium-ion battery injection molding die according to claim 5, characterized in that, A push rod B (37) is provided at the middle position of the top of the movable plate (35), and the push rod B (37) is inserted into the injection groove of the lower mold plate (32) through a through hole.

7. A lithium-ion battery injection molding die according to claim 1, characterized in that, The snap-fit ​​part (2) includes a threaded insert shaft (21), which is inserted into the turntable (147) through a slot. A lower receiving plate (22) is connected to the surface of the threaded insert shaft (21), and the top of the lower receiving plate (22) is connected to the upper pressure plate (24) through a support spring (23). The upper pressure plate (24) is sleeved on the threaded section surface of the threaded insert shaft (21). A screw cap (25) is threadedly sleeved on the top of the threaded insert shaft (21), and the bottom end of the screw cap (25) contacts the top surface of the upper pressure plate (24). A snap-fit ​​part (26) is provided on the side of the upper pressure plate (24).

8. A lithium-ion battery injection molding die according to claim 7, characterized in that, The snap-fit ​​component (26) includes a connecting plate (264) fixed to the sides of the two upper pressure plates (24), and a threaded shaft (263) is inserted through a threaded hole at the center of the side of the connecting plate (264). The shaft end of the threaded shaft (263) is rotatably mounted on the side of the snap-fit ​​plate (262), and the snap-fit ​​plate (262) is snapped onto the side of the mold base (31) through a groove. A protrusion is provided on the bottom side of the snap-fit ​​plate (262), and the protrusion is embedded into the groove of the mold base (31) through a groove.

9. A lithium-ion battery injection molding die according to claim 8, characterized in that, The card plate (262) has a transverse U-shaped cross-section. The U-shaped parallel plate ends of the card plate (262) are symmetrically connected with guide plates (261), and the guide plates (261) are inserted into the side of the upper pressure plate (24) through guide grooves.

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