A new battery case injection mold and its using method

Abstract

The application relates to the technical field of injection molds, and discloses a novel accumulator shell injection mold and a using method thereof. The novel accumulator shell injection mold comprises an outer mold frame and a mold core. The mold core is internally provided with a cavity and a cooling flow channel. One side of the mold core is provided with an upper groove and a lower groove. The two ends of the cooling flow channel are respectively communicated with the upper groove and the lower groove. One end of the upper groove is provided with a water conveying mechanism. The inside of the lower groove is provided with a first temperature sensor and a water distribution mechanism. The cavity is provided with an adjusting mechanism. The application has the advantages of reasonable design. The adjusting mechanism composed of a servo motor, a bevel gear, a screw rod and a magnetic attraction structure is arranged, and the adjusting plate with the temperature detection function is matched, so that the partitioned accurate regulation and control of mold cooling can be realized. The electric push rod, the guide matching structure and the ejection mechanism are matched, so that the integrated operation of mold split movement and automatic discharging of finished products can be realized.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, and in particular to a novel battery casing injection mold and its method of use. Background Technology

[0002] Currently, in the field of battery casing injection molding, injection molds with fixed cooling structures are commonly used for production. These molds mainly consist of an outer mold frame and a mold core, forming the main molding structure. Cooling channels with fixed orientations are pre-set inside the mold core, and cooling water is introduced through a simple water supply structure. The circulating water carries away heat from the molding area, thus cooling and shaping the plastic product. The existing mold structure can meet the basic injection molding requirements of conventional battery casings, has strong structural adaptability, and mature processing technology. It is widely used in the mass injection molding production of small and medium-sized battery casings and is currently the mainstream processing equipment in the industry.

[0003] Existing traditional injection molds have fixed and simple cooling systems with a constant water flow direction within the cooling channels. This limits the heat exchange contact area between the cooling water and the mold, resulting in low overall heat exchange efficiency and an inability to adjust the water flow rate according to temperature changes. Furthermore, traditional molds cannot adjust the water flow rate to accommodate temperature differences in different areas of the mold, leading to uniform cooling rates across all regions. This can easily result in localized over- or under-cooling, causing deformation, defects, and other quality issues after the battery casing is molded. In addition, most traditional molds have low automation in the demolding process, often requiring manual assistance. This results in poor process continuity and hinders overall production efficiency, making them unsuitable for high-precision, high-efficiency mass production. Therefore, we propose a novel battery casing injection mold and its application method to address these problems. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings mentioned in the background section by proposing a novel battery casing injection mold and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A novel battery casing injection mold includes an outer mold frame and a mold core. The mold core has a cavity and a cooling channel inside. One side of the mold core has an upper groove and a lower groove. The two ends of the cooling channel are connected to the upper groove and the lower groove, respectively. One end of the upper groove is provided with a water conveying mechanism. The lower groove has a first temperature sensor and a water distribution mechanism inside. An adjustment mechanism is provided in the cavity. The adjustment mechanism includes an adjustment plate, a drive plate, a cross plate, a lead screw, a drive shaft, and a servo motor. The adjustment plate is embedded with a second temperature sensor and a first permanent magnet. The drive plate is embedded with a second permanent magnet. The second permanent magnet and the first permanent magnet are magnetically attracted to each other. The adjustment plate is disposed in the cooling channel.

[0006] Preferably, the lead screw is rotatably mounted in the cavity, a driven bevel gear is fixedly mounted on the lead screw, a driving bevel gear is fixedly mounted on one end of the drive shaft, the driving bevel gear and the driven bevel gear mesh with each other, and the other end of the drive shaft is fixedly mounted on the output shaft of the servo motor.

[0007] Preferably, the water distribution mechanism includes: a first fixed shaft, a water distribution plate, a vertical frame, a horizontal frame, a second fixed shaft, and an impeller. The first fixed shaft is fixedly installed in the cooling channel. The water distribution plate is rotatably sleeved on the outside of the first fixed shaft. A connecting frame is fixedly installed on the top of the water distribution plate. A connecting column is fixedly installed on the bottom of the vertical frame. The connecting column is inserted into the connecting frame. A spring is provided on the top of the vertical frame. A linkage rod is hinged to the front side of the vertical frame. The other end of the linkage rod is hinged to the horizontal frame. An abutment wheel is rotatably installed on the right side of the horizontal frame. The abutment wheel abuts against one side of the impeller. The impeller is rotatably sleeved on the outside of the second fixed shaft. The second fixed shaft is fixedly installed in the lower groove. Both the horizontal frame and the vertical frame are slidably installed in the mold core.

[0008] Preferably, a base is fixedly installed at the bottom of the outer mold frame, a fixing plate is fixedly installed on one side of the top of the base, an electric push rod and a controller are fixedly installed on one side of the fixing plate, the output end of the electric push rod is fixedly connected to the mold core, guide protrusions are integrally formed on both sides of the front side of the mold core, a guide frame is fixedly installed on the top of the base, and the guide protrusions are slidably sleeved on the outside of the guide frame.

[0009] Preferably, the top and bottom of the mold core are provided with ejection mechanisms, the ejection mechanism including a cylinder and an ejection plate, the ejection plate being fixedly installed on the output end of the cylinder.

[0010] Preferably, the conveying mechanism includes: a water supply frame, a piston plate, a guide rail, a drive motor, and a rotating column. The conveying frame is fixedly installed on one side of the mold core. A water outlet is provided on one side of the water supply frame, and the water outlet communicates with the upper groove. A water inlet pipe is connected to the other side of the conveying frame. Two partitions are fixedly installed inside the conveying frame. The piston plate is slidably installed between the two partitions. One-way valves are provided on both the upper and lower sides of the partitions. A connecting rod is fixedly installed between the piston plate and the guide rail. A sliding frame is slidably sleeved on the outer side of the guide rail. An ear plate is fixedly installed at the bottom of the sliding frame. The ear plate is rotatably sleeved on the outer side of the rotating column. Rotating arms are fixedly installed at both ends of the rotating column. The output end of the drive motor is fixedly installed at the other end of one of the rotating arms. A bottom frame is fixedly installed at the bottom of the conveying frame. The drive motor is fixedly installed inside the bottom frame. The servo motor is fixedly installed at the bottom of the bottom frame.

[0011] Preferably, the one-way valve includes: a sealing disc, a mounting rod, a baffle, and a return spring. The two ends of the mounting rod are fixedly connected to the sealing disc and the baffle, respectively. The mounting rod is slidably installed inside the partition. The return spring is fixedly installed between the partition and the baffle. The partition has connecting holes on both its upper and lower sides. The sealing disc abuts against the left end of the connecting hole.

[0012] Preferably, a cover plate is fixedly installed in the lower groove, a water outlet pipe is connected to one side of the cover plate, and an injection hole is opened on the left side of the outer mold frame.

[0013] This invention also provides a method for using a novel battery casing injection mold, applied to the aforementioned novel battery casing injection mold, comprising the following steps: Step 1: Injection Molding and Constant Cooling Water Supply: During operation, molten plastic is first injected into the mold through the injection hole on the left side of the outer mold frame to complete the preliminary preparation for the injection molding operation. The water inlet pipe of the water supply mechanism is connected to a cold water source. Power is provided by the drive motor inside the water supply mechanism, which drives the rotating column and rotating arm to rotate. This drives the ear plate and sliding frame to slide along the guide rail. The connecting rod drives the piston plate to reciprocate between the two partitions inside the water supply frame. Relying on the one-way valves mounted on the upper and lower sides of the partitions, and utilizing the cooperation of the sealing plate, mounting rod, baffle plate, and return spring... The system operates by controlling the opening and closing of a one-way valve, ensuring that cooling water is continuously delivered to the water supply frame throughout the entire process of the piston plate moving upward and downward. The water then flows into the upper groove of the mold core through the water outlet on one side of the water supply frame, and finally smoothly enters the cooling channel inside the mold core. The first temperature sensor installed inside the lower groove monitors the water temperature data of the circulating cooling water in real time, and adjusts the rotation speed of the drive motor according to the real-time water temperature, thereby precisely adjusting the flow rate of the cooling water. This provides a stable and controllable cooling water source for the injection molding of the battery casing, ensuring the continuous operation of the cooling process. Step 2: Adjusting the water flow angle to enhance heat exchange: Cooling water flows continuously along the cooling channel and eventually flows into the lower groove. The power generated during the water flow will drive the impeller sleeved on the outside of the second fixed shaft to rotate continuously. During the rotation of the impeller, it will abut against the abutment wheel on the right side of the cross frame, causing the cross frame to make lateral displacement. The cross frame drives the vertical frame to slide inside the mold core through the hinged linkage rod. The extension and retraction adjustment is achieved with the spring set at the top of the vertical frame. The connecting column at the bottom of the vertical frame is inserted into the connecting frame at the top of the water distribution plate. The reciprocating motion of the vertical frame can drive the water distribution plate sleeved on the outside of the first fixed shaft to make reciprocating rotation, continuously changing the flow angle and flow trajectory of the cooling water inside the cooling channel. By dynamically adjusting the water flow direction, the heat exchange contact area between the cooling water and the mold core structure is expanded, solving the problems of fixed water flow and uneven heat exchange in traditional molds, greatly improving the overall heat exchange efficiency of the mold, and enhancing the basic cooling effect. Step 3: Zoned Flow Rate Control for Uniform Cooling: During the cooling water circulation process, the servo motor inside the cavity starts operating, driving the drive shaft connected to the output shaft to rotate. This drives the active bevel gear at the end of the drive shaft to rotate synchronously. Through gear meshing, the driven bevel gear and the lead screw rotate inside the cavity. During the rotation of the lead screw, the drive plate inside the cavity makes up-and-down linear displacement movements. The second permanent magnet embedded in the drive plate and the first permanent magnet embedded in the adjustment plate form a magnetic attraction, driving the adjustment plate set inside the cooling channel to move up and down synchronously. The second temperature sensor embedded in the adjustment plate will detect the temperature data of different areas of the cooling channel in real time. Based on the temperature difference of each area, the stopping position of the adjustment plate is precisely controlled. The position of the adjustment plate can accelerate the cooling water flow speed of the corresponding area, improve the cooling rate of the corresponding area. By precisely controlling the water flow speed in zones, the cooling temperature of each area of ​​the mold is balanced, achieving uniform cooling of the entire mold. This effectively avoids problems such as deformation and defects caused by excessive cooling temperature differences during the injection molding of the battery casing, ensuring the quality of product molding. Step 4: Mold Removal and Automatic Finished Product Unloading: After the battery casing has completely cooled and solidified, the electric push rod installed on one side of the fixed plate at the top of the base is activated. The output end of the electric push rod drives the mold core to move as a whole. The mold core slides smoothly along the guide frame fixed at the top of the base through the integrated guide protrusions on the front and rear sides, so that the mold core moves smoothly out of the outer mold frame. After the mold core is separated from the outer mold frame, the ejection mechanism set at the top and bottom of the mold core is activated. The cylinder inside the ejection mechanism drives the ejection plate to perform a telescopic ejection movement, smoothly ejecting the cooled and solidified battery casing from the inside of the mold core, completing the automated finished product unloading operation. The entire injection molding cooling and unloading process runs in a continuous manner, effectively improving the automation level and production efficiency of battery casing injection molding production.

[0014] Compared with the prior art, the present invention provides a novel battery casing injection mold and its method of use, which has the following beneficial effects: (1) By setting up a dedicated water supply mechanism combined with a baffle and a one-way valve, the continuous supply of cooling water can be achieved by relying on the reciprocating lifting motion of the piston plate. The water supply operation can be completed during the up and down movement of the piston plate, effectively ensuring the continuity and stability of the cooling water supply. At the same time, the cooling water temperature is monitored in real time by the first temperature sensor inside the lower groove. The operating status of the drive motor is dynamically adjusted according to the water temperature change, thereby adjusting the cooling water supply flow rate. It can adapt to the cooling needs of different stages in the injection molding process of the battery shell, avoid water supply interruption and unstable water flow, provide stable basic conditions for the overall cooling operation of the mold, ensure the smooth progress of the injection molding process, and eliminate the molding foundation defects caused by abnormal water supply.

[0015] (2) By setting a water distribution mechanism inside the cooling channel, the impeller is driven by the natural power generated by the flow of cooling water. No additional drive energy is required to link the horizontal frame, linkage rod, and vertical frame, causing the water distribution plate to reciprocate. This continuously changes the flow angle and trajectory of the cooling water inside the cooling channel, breaking the limitation of the traditional unidirectional fixed flow of cooling water in molds. It effectively expands the heat exchange contact range between the cooling water and the inner wall of the mold core, improving the heat exchange efficiency between the cooling water and the mold. This significantly improves the overall heat exchange efficiency of the mold, optimizes the overall cooling uniformity of the mold, improves the problem of insufficient local heat exchange in traditional molds, and enhances the basic cooling performance of the mold.

[0016] (3) By setting up an adjustment mechanism consisting of a servo motor, bevel gear, lead screw, and magnetic structure, and combining it with an adjustment plate with temperature detection function, precise control of mold cooling in different zones can be achieved. It can collect temperature data of different areas of the cooling channel in real time, and accurately control the up and down movement of the adjustment plate according to the temperature difference of each area of ​​the mold, thereby accelerating the flow rate of cooling water in the high-temperature area of ​​the mold and improving the cooling efficiency of the corresponding area. It effectively balances the overall cooling temperature difference of the mold, solves the problem of uneven heating and cooling caused by the uniform water flow speed throughout the traditional mold, avoids quality problems such as deformation and surface defects after the battery casing is formed, and steadily improves the product molding qualification rate.

[0017] (4) By equipping the mold with electric push rods, a guide mechanism, and an ejection mechanism, the mold can be moved separately and the finished product can be automatically unloaded. After cooling and molding, the mold core can be smoothly moved out of the outer mold frame by the electric push rod. The sliding cooperation between the guide protrusion and the guide frame ensures that the movement process is accurate and stable, avoiding the mold core from shifting or bumping. Then, the molded product is directly ejected and demolded by the ejection mechanisms on the upper and lower sides. No manual intervention is required throughout the process, which simplifies the product unloading process. This effectively improves the automation level of mold operation, allows the injection, cooling, and demolding processes to run in a continuous manner, and improves the overall production efficiency of battery casing injection molding.

[0018] This invention features a rational design. By optimizing the mold's cooling water supply structure, water flow regulation structure, zoned temperature control structure, and demolding and unloading structure, the mold as a whole improves the cooling stability, uniformity, and ease of production during the injection molding of battery casings. Simultaneously, it enables the effective recycling of plastic waste, reducing production losses. The water supply mechanism, combined with baffles and one-way valves, ensures continuous and stable cooling water delivery throughout the process. Real-time flow rate control via temperature sensors adapts to the cooling needs of different stages of injection molding, effectively avoiding molding defects caused by unstable water supply. The water distribution mechanism within the cooling channels can autonomously adjust the water flow angle and trajectory using water flow dynamics, expanding the heat exchange contact range and improving the overall heat exchange efficiency and uniformity of the mold. The cooling regulation mechanism can zone-control the water flow rate according to temperature differences in different areas of the mold, balancing the overall cooling temperature difference and significantly improving the problem of uneven cooling in traditional molds. This effectively avoids product deformation and surface defects, greatly reducing the yield of defective products and minimizing waste from substandard plastic products. It also facilitates the centralized recycling and reuse of plastic waste during production, effectively saving raw materials and reducing production costs. The automated mold core movement and ejection unloading structure simplifies the production process and improves the automation level of the equipment and the overall production efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a novel battery casing injection mold proposed in this invention; Figure 2 This is a cross-sectional view of a novel battery casing injection mold proposed in this invention. Figure 3 for Figure 2 A magnified view of part A in the middle; Figure 4 for Figure 2 A magnified view of part B in the middle section; Figure 5 for Figure 2 A magnified view of part C in the middle; Figure 6 This is a partial three-dimensional structural schematic diagram of the water conveying mechanism proposed in this invention; Figure 7 for Figure 6 A magnified view of part D in the middle; Figure 8 This is a cross-sectional view of the one-way valve proposed in this invention. Figure 9 This is a three-dimensional structural diagram of the water-dividing mechanism proposed in this invention; Figure 10 for Figure 9 A magnified view of part E in the middle.

[0020] In the diagram: 1. Outer mold frame; 2. Mold core; 201. Cooling channel; 202. Cavity; 203. Upper groove; 204. Lower groove; 205. Guide protrusion; 206. Water outlet pipe; 3. Base; 301. Fixing plate; 302. Controller; 303. Electric push rod; 304. Guide frame; 4. Ejection mechanism; 401. Cylinder; 402. Ejection plate; 5. Water supply mechanism; 501. Conveying frame; 502. Partition plate; 50201. Connecting hole; 503. One-way valve; 50301. Sealing plate; 50302. Mounting rod; 50303. Baffle plate; 50304. Return spring; 504. Piston plate; 505. Connecting rod; 506. Guide rail; 507. Sliding frame; 508. Ear plate; 509. Rotating column; 510. Rotating arm; 511. Drive motor; 512. Water inlet pipe; 6. Base frame; 7. Adjustment mechanism; 701. Adjustment plate; 702. Second temperature sensor; 703. First permanent magnet; 704. Second permanent magnet; 705. Drive plate; 706. Horizontal plate; 707. Lead screw; 708. Driven bevel gear; 709. Driven bevel gear; 710. Drive shaft; 711. Servo motor; 8. Water distribution mechanism; 801. First fixed shaft; 802. Water distribution plate; 803. Connecting frame; 804. Connecting column; 805. Vertical frame; 806. Linkage rod; 807. Horizontal frame; 808. Abutment wheel; 809. Impeller; 810. Second fixed shaft; 9. First temperature sensor. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Reference Figure 1-10A novel battery casing injection mold includes: an outer mold frame 1 and a mold core 2. The mold core 2 has a cavity 202 and a cooling channel 201 inside. An upper groove 203 and a lower groove 204 are provided on one side of the mold core 2. The two ends of the cooling channel 201 are connected to the upper groove 203 and the lower groove 204 respectively. A water conveying mechanism 5 is provided at one end of the upper groove 203. A first temperature sensor 9 and a water distribution mechanism 8 are provided inside the lower groove 204. An adjustment mechanism 7 is provided in the cavity 202. The adjustment mechanism 7 includes: an adjustment plate 701, a drive plate 705, a horizontal plate 706, a lead screw 707, a drive shaft 710, and a servo motor 711. A second temperature sensor 702 and a first permanent magnet 703 are embedded in the adjustment plate 701. A second permanent magnet 704 is embedded in the drive plate 705. The second permanent magnet 704 and the first permanent magnet 703 are magnetically attracted to each other. The adjustment plate 701 is located in the cooling channel 201.

[0024] In this embodiment, the lead screw 707 is rotatably installed in the cavity 202, the driven bevel gear 708 is fixedly installed on the lead screw 707, the driving bevel gear 709 is fixedly installed at one end of the drive shaft 710, the driving bevel gear 709 and the driven bevel gear 708 mesh with each other, and the other end of the drive shaft 710 is fixedly installed on the output shaft of the servo motor 711.

[0025] In this embodiment, the water distribution mechanism 8 includes: a first fixed shaft 801, a water distribution plate 802, a vertical frame 805, a horizontal frame 807, a second fixed shaft 810, and an impeller 809. The first fixed shaft 801 is fixedly installed inside the cooling channel 201. The water distribution plate 802 is rotatably sleeved on the outside of the first fixed shaft 801. A connecting frame 803 is fixedly installed on the top of the water distribution plate 802. A connecting post 804 is fixedly installed on the bottom of the vertical frame 805. The connecting post 804 is inserted into the connecting frame 809. Inside 3, a spring is provided at the top of the vertical frame 805, and a linkage rod 806 is hinged to the front side of the vertical frame 805. The other end of the linkage rod 806 is hinged to the horizontal frame 807. An abutment wheel 808 is rotatably installed on the right side of the horizontal frame 807. The abutment wheel 808 abuts against one side of the impeller 809. The impeller 809 is rotatably sleeved on the outside of the second fixed shaft 810. The second fixed shaft 810 is fixedly installed in the lower groove 204. Both the horizontal frame 807 and the vertical frame 805 are slidably installed in the mold core 2.

[0026] In this embodiment, a base 3 is fixedly installed at the bottom of the outer mold frame 1, a fixing plate 301 is fixedly installed on one side of the top of the base 3, an electric push rod 303 and a controller 302 are fixedly installed on one side of the fixing plate 301, the output end of the electric push rod 303 is fixedly connected to the mold core 2, and guide protrusions 205 are integrally formed on both sides of the front side of the mold core 2. A guide frame is fixedly installed on the top of the base 3, and the guide protrusions 205 are slidably sleeved on the outside of the guide frame.

[0027] In this embodiment, the top and bottom of the mold core 2 are provided with an ejection mechanism 4. The ejection mechanism 4 includes a cylinder 401 and an ejection plate 402. The ejection plate 402 is fixedly installed on the output end of the cylinder 401.

[0028] In this embodiment, the conveying mechanism includes: a water conveying frame, a piston plate 504, a guide rail 506, a drive motor 511, and a rotating column 509. The conveying frame 501 is fixedly installed on one side of the mold core 2. A water outlet is provided on one side of the water conveying frame, which communicates with the upper groove 203. A water inlet pipe 512 is connected to the other side of the conveying frame 501. Two partitions 502 are fixedly installed inside the conveying frame 501. The piston plate 504 is slidably installed between the two partitions 502. One-way valves 503 are provided on both the upper and lower sides of the partitions 502. The piston plate 504 and the guide rail 509 are connected. A connecting rod 505 is fixedly installed between 6. A sliding frame 507 is slidably sleeved on the outside of the guide rail 506. An ear plate 508 is fixedly installed at the bottom of the sliding frame 507. The ear plate 508 is rotatably sleeved on the outside of the rotating column 509. Rotating arms 510 are fixedly installed at both ends of the rotating column 509. The output end of the drive motor 511 is fixedly installed at the other end of one of the rotating arms 510. A bottom frame 6 is fixedly installed at the bottom of the conveying frame 501. The drive motor 511 is fixedly installed inside the bottom frame 6. A servo motor 711 is fixedly installed at the bottom of the bottom frame 6.

[0029] In this embodiment, the one-way valve 503 includes: a sealing disc 50301, a mounting rod 50302, a baffle 50303, and a return spring 50304. The two ends of the mounting rod 50302 are fixedly connected to the sealing disc 50301 and the baffle 50303, respectively. The mounting rod 50302 is slidably installed inside the partition 502. The return spring 50304 is fixedly installed between the partition 502 and the baffle 50303. The upper and lower sides of the partition 502 are provided with connecting holes 50201. The sealing disc 50301 abuts against the left end of the connecting hole 50201.

[0030] In this embodiment, a cover plate is fixedly installed in the lower groove 204, and a water outlet pipe 206 is connected to one side of the cover plate. An injection hole is opened on the left side of the outer mold frame 1.

[0031] This invention also provides a method for using a novel battery casing injection mold, applied to the aforementioned novel battery casing injection mold, comprising the following steps: Step 1: Injection Molding and Constant Cooling Water Supply: During operation, molten plastic is first injected into the mold through the injection hole on the left side of the outer mold frame 1 to complete the preliminary preparation for the injection molding operation. The water inlet pipe 512 of the water supply mechanism 5 is connected to an external cold water source. Power is provided by the drive motor 511 inside the water supply mechanism 5, driving the rotating column 509 and rotating arm 510 to rotate. This drives the ear plate 508 and sliding frame 507 to slide along the guide rail 506. The connecting rod 505 drives the piston plate 504 to reciprocate between the two partitions 502 inside the water supply frame. Relying on the one-way valves 503 mounted on the upper and lower sides of the partitions 502, the sealing disc 50301, mounting rod 50302, and stop... The coordinated operation of disc 50303 and return spring 50304 enables the opening and closing control of check valve 503, ensuring that cooling water can be continuously delivered to the inside of water supply frame throughout the entire process of piston plate 504 moving upward and downward. Then, it flows into the upper groove 203 of mold core 2 through the water outlet on one side of the water supply frame, and finally smoothly enters the cooling channel 201 inside mold core 2. The first temperature sensor 9 installed inside the lower groove 204 will monitor the water temperature data of the circulating cooling water in real time, and adjust the rotation speed of drive motor 511 according to the real-time water temperature, thereby accurately adjusting the delivery flow of cooling water, providing a stable and controllable cooling water source for the injection molding of battery casing, and ensuring the continuous operation of cooling. Step 2: Adjusting the water flow angle to enhance heat exchange: Cooling water flows continuously along the cooling channel 201 and eventually flows into the lower groove 204. The power generated during the water flow will drive the impeller 809, which is sleeved on the outside of the second fixed shaft 810, to rotate continuously. During the rotation of the impeller 809, it will abut against the abutment wheel 808 on the right side of the cross frame 807, causing the cross frame 807 to make lateral displacement. The cross frame 807 drives the vertical frame 805 to slide inside the mold core 2 through the hinged linkage rod 806. The extension and retraction adjustment is achieved with the spring set at the top of the vertical frame 805. Section 805: The connecting column 804 at the bottom of the vertical frame 805 is inserted into the connecting frame 803 at the top of the water distribution plate 802. The reciprocating motion of the vertical frame 805 can drive the water distribution plate 802, which is sleeved on the outside of the first fixed shaft 801, to reciprocate and rotate. This continuously changes the flow angle and flow trajectory of the cooling water inside the cooling channel 201. By dynamically adjusting the water flow direction, the heat exchange contact area between the cooling water and the mold core 2 structure is expanded, solving the problems of fixed water flow and uneven heat exchange in traditional molds. This significantly improves the overall heat exchange efficiency of the mold and enhances the basic cooling effect. Step 3: Uniform Cooling Achieved by Zoned Flow Rate Control: During the cooling water circulation process, the servo motor 711 inside the cavity 202 starts operating, driving the drive shaft 710 connected to the output shaft to rotate. This drives the active bevel gear 709 at the end of the drive shaft 710 to rotate synchronously. Through gear meshing, the driven bevel gear 708 and the lead screw 707 rotate inside the cavity 202. During the rotation of the lead screw 707, the drive plate 705 inside the cavity 202 performs vertical linear displacement motion. The second permanent magnet 704 embedded inside the drive plate 705 and the first permanent magnet 703 embedded inside the adjustment plate 701 form a magnetic attraction, driving the set... Inside the cooling channel 201, the regulating plate 701 moves synchronously up and down. The second temperature sensor 702 embedded in the regulating plate 701 monitors the temperature data of different areas of the cooling channel 201 in real time. Based on the temperature differences between areas, the regulating plate 701's position is precisely controlled. The position of the regulating plate 701 accelerates the cooling water flow rate in the corresponding area, increasing the cooling rate of that area. Through precise control of the water flow rate in different zones, the cooling temperature of each area of ​​the mold is balanced, achieving uniform cooling of the entire mold. This effectively avoids deformation and defects caused by excessive temperature differences during the injection molding of the battery casing, ensuring product molding quality. Step 4: Mold Removal and Automatic Finished Product Unloading: After the battery casing has completely cooled and solidified, the electric push rod 303 installed on one side of the top fixing plate 301 of the base 3 is activated. The output end of the electric push rod 303 drives the mold core 2 to move as a whole. The mold core 2 slides smoothly along the guide frame fixed at the top of the base 3 through the guide protrusions 205 integrally formed on the front and rear sides, so that the mold core 2 is smoothly removed from the outer mold frame 1. After the mold core 2 is separated from the outer mold frame 1, the ejection mechanism 4 set at the top and bottom of the mold core 2 is activated. The cylinder 401 inside the ejection mechanism 4 drives the ejection plate 402 to perform telescopic ejection movement, smoothly ejecting the cooled and solidified battery casing from the inside of the mold core 2, completing the automated finished product unloading operation. The entire injection molding cooling and unloading process runs continuously, effectively improving the automation level and production efficiency of battery casing injection molding production.

[0032] In this embodiment, by optimizing the mold's cooling water supply structure, water flow regulation structure, zoned temperature control structure, and demolding and unloading structure, the overall mold improves the cooling stability, cooling uniformity, and production convenience of the battery casing injection molding process. Simultaneously, it achieves effective recycling of plastic waste, reducing production losses. The water supply mechanism 5, in conjunction with the baffle 502 and one-way valve 503, enables continuous and stable cooling water delivery throughout the process. Combined with real-time temperature sensor-controlled water flow, it can adapt to the cooling needs of different stages of injection molding, effectively avoiding molding defects caused by unstable water supply. The water distribution mechanism 8 inside the cooling channel 201 can autonomously adjust the water flow angle and trajectory using water flow dynamics, expanding the heat exchange contact range and improving the overall heat exchange efficiency and uniformity of the mold. The cooling regulation mechanism 7 can adjust the water flow rate according to the temperature differences in different areas of the mold, balancing the overall cooling temperature difference of the mold, significantly improving the problem of uneven cooling in traditional molds, effectively avoiding product deformation and surface defects, greatly reducing the yield of defective products, reducing waste generated from unqualified plastic products, facilitating the centralized recycling and reuse of plastic waste during production, effectively saving production raw materials and reducing production costs. The automated mold core 2 movement and ejection unloading structure simplifies the production process and improves the automation level of the equipment and the overall production efficiency.

[0033] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

Claims

1. A novel injection mold for a storage battery casing, characterized in that, include: The outer mold frame (1) and the mold core (2) are provided. The mold core (2) has a cavity (202) and a cooling channel (201) inside. An upper groove (203) and a lower groove (204) are provided on one side of the mold core (2). The two ends of the cooling channel (201) are connected to the upper groove (203) and the lower groove (204) respectively. A water conveying mechanism (5) is provided at one end of the upper groove (203). A first temperature sensor (9) and a water distribution mechanism (8) are provided inside the lower groove (204). An adjustment mechanism is provided inside the cavity (202). The adjustment mechanism (7) includes: an adjustment plate (701), a drive plate (705), a cross plate (706), a lead screw (707), a drive shaft (710), and a servo motor (711). The adjustment plate (701) is embedded with a second temperature sensor (702) and a first permanent magnet (703). The drive plate (705) is embedded with a second permanent magnet (704). The second permanent magnet (704) and the first permanent magnet (703) are magnetically attracted to each other. The adjustment plate (701) is located in the cooling channel (201).

2. The novel battery casing injection mold according to claim 1, characterized in that, The lead screw (707) is rotatably mounted in the cavity (202). A driven bevel gear (708) is fixedly mounted on the lead screw (707). A driving bevel gear (709) is fixedly mounted on one end of the drive shaft (710). The driving bevel gear (709) meshes with the driven bevel gear (708). The other end of the drive shaft (710) is fixedly mounted on the output shaft of the servo motor (711).

3. The novel battery casing injection mold according to claim 2, characterized in that, The water distribution mechanism (8) includes: a first fixed shaft (801), a water distribution plate (802), a vertical frame (805), a horizontal frame (807), a second fixed shaft (810), and an impeller (809). The first fixed shaft (801) is fixedly installed inside the cooling channel (201). The water distribution plate (802) is rotatably sleeved on the outside of the first fixed shaft (801). A connecting frame (803) is fixedly installed on the top of the water distribution plate (802). A connecting column (804) is fixedly installed on the bottom of the vertical frame (805). The connecting column (804) is inserted into the connecting frame (803). A spring is provided at the top of the vertical frame (805). A linkage rod (806) is hinged to the front side of the vertical frame (805). The other end of the linkage rod (806) is hinged to the horizontal frame (807). An abutment wheel (808) is rotatably installed on the right side of the horizontal frame (807). The abutment wheel (808) abuts against one side of the impeller (809). The impeller (809) is rotatably sleeved on the outside of the second fixed shaft (810). The second fixed shaft (810) is fixedly installed in the lower groove (204). The horizontal frame (807) and the vertical frame (805) are both slidably installed in the mold core (2).

4. The novel battery casing injection mold according to claim 3, characterized in that, The bottom of the outer mold frame (1) is fixedly installed with a base (3), and a fixing plate (301) is fixedly installed on one side of the top of the base (3). An electric push rod (303) and a controller (302) are fixedly installed on one side of the fixing plate (301). The output end of the electric push rod (303) is fixedly connected to the mold core (2). The front sides of the mold core (2) are integrally formed with guide protrusions (205). A guide frame is fixedly installed on the top of the base (3). The guide protrusions (205) are slidably sleeved on the outside of the guide frame.

5. The novel battery casing injection mold according to claim 4, characterized in that, The top and bottom of the mold core (2) are provided with ejection mechanisms (4), which include a cylinder (401) and an ejection plate (402). The ejection plate (402) is fixedly installed on the output end of the cylinder (401).

6. The novel battery casing injection mold according to claim 5, characterized in that, The conveying mechanism includes: a water conveying frame, a piston plate (504), a guide rail (506), a drive motor (511), and a rotating column (509). The conveying frame (501) is fixedly installed on one side of the mold core (2). A water outlet is provided on one side of the water conveying frame, and the water outlet communicates with the upper groove (203). A water inlet pipe (512) is connected to the other side of the conveying frame (501). Two partitions (502) are fixedly installed inside the conveying frame (501). The piston plate (504) is slidably installed between the two partitions (502). One-way valves (503) are provided on both the upper and lower sides of the partitions (502). The piston plate (504) and the guide rail (506) are connected. A connecting rod (505) is fixedly installed between the guide rails (506). A sliding frame (507) is slidably sleeved on the outside of the guide rail (506). An ear plate (508) is fixedly installed at the bottom of the sliding frame (507). The ear plate (508) is rotatably sleeved on the outside of the rotating column (509). A rotating arm (510) is fixedly installed at both ends of the rotating column (509). The output end of the drive motor (511) is fixedly installed at the other end of one of the rotating arms (510). A bottom frame (6) is fixedly installed at the bottom of the conveying frame (501). The drive motor (511) is fixedly installed inside the bottom frame (6). The servo motor (711) is fixedly installed at the bottom of the bottom frame (6).

7. The novel battery casing injection mold according to claim 6, characterized in that, The one-way valve (503) includes: a sealing disc (50301), a mounting rod (50302), a baffle (50303), and a return spring (50304). The two ends of the mounting rod (50302) are fixedly connected to the sealing disc (50301) and the baffle (50303) respectively. The mounting rod (50302) is slidably installed in the partition (502). The return spring (50304) is fixedly installed between the partition (502) and the baffle (50303). The partition (502) has connecting holes (50201) on both the upper and lower sides. The sealing disc (50301) abuts against the left end of the connecting hole (50201).

8. The novel battery casing injection mold according to claim 7, characterized in that, A cover plate is fixedly installed in the lower groove (204), and a water outlet pipe (206) is connected to one side of the cover plate. An injection hole is opened on the left side of the outer mold frame (1).

9. A method of using a novel battery casing injection mold, applied to the novel battery casing injection mold of claim 8, characterized in that, Includes the following steps: Step 1, Injection Molding and Constant Cooling Water Supply: During operation, molten plastic is first injected into the mold through the injection hole set on the left side of the outer mold frame (1) to complete the preliminary preparation for injection molding. The water inlet pipe (512) of the water supply mechanism (5) is connected to a cold water source. Power is provided by the drive motor (511) inside the water supply mechanism (5) to drive the rotating column (509) and rotating arm (510) to rotate. The drive ear plate (508) and sliding frame (507) slide along the guide rail (506). The piston plate (504) is driven to reciprocate between the two partitions (502) inside the water supply frame through the connecting rod (505). Relying on the one-way valves (503) installed on the upper and lower sides of the partition (502), the sealing plate (50301) and the mounting rod (50301) are used to control the flow of cold water. The coordinated operation of the baffle (50303) and the return spring (50304) enables the opening and closing control of the one-way valve (503), ensuring that the cooling water can be continuously delivered to the inside of the water supply frame during the entire process of the piston plate (504) moving up and down. The water then flows into the upper groove (203) of the mold core (2) through the water outlet on one side of the water supply frame, and finally smoothly enters the cooling channel (201) inside the mold core (2). The first temperature sensor (9) installed inside the lower groove (204) will monitor the water temperature data of the circulating cooling water in real time, and adjust the rotation speed of the drive motor (511) according to the real-time water temperature, thereby accurately adjusting the delivery flow of the cooling water, providing a stable and controllable cooling water source for the injection molding of the battery shell, and ensuring the continuous operation of the cooling operation. Step 2: Adjusting the water flow angle to enhance heat exchange: Cooling water flows continuously along the cooling channel (201) and eventually flows into the lower groove (204). The power generated during the water flow will drive the impeller (809) sleeved on the outside of the second fixed shaft (810) to rotate continuously. During the rotation of the impeller (809), it will abut against the abutment wheel (808) on the right side of the cross frame (807), causing the cross frame (807) to make lateral displacement. The cross frame (807) drives the vertical frame (805) to slide inside the mold core (2) through the hinged linkage rod (806), which cooperates with the spring set at the top of the vertical frame (805) to solidify the heat exchange effect. The vertical frame (805) is now telescopically adjustable. The connecting column (804) at the bottom of the vertical frame (805) is inserted into the connecting frame (803) at the top of the water distribution plate (802). The reciprocating motion of the vertical frame (805) can drive the water distribution plate (802) sleeved on the outside of the first fixed shaft (801) to perform reciprocating rotational motion, continuously changing the flow angle and flow trajectory of the cooling water inside the cooling channel (201). By dynamically adjusting the water flow direction, the heat exchange contact area between the cooling water and the mold core (2) structure is expanded, solving the problem of fixed water flow and uneven heat exchange in traditional molds, greatly improving the overall heat exchange efficiency of the mold, and strengthening the basic cooling effect. Step 3: Uniform Cooling Achieved by Zoned Flow Rate Control: During the cooling water circulation process, the servo motor (711) inside the cavity (202) starts operating, driving the drive shaft (710) connected to the output shaft to rotate, which in turn drives the active bevel gear (709) at the end of the drive shaft (710) to rotate synchronously. Through gear meshing transmission, the driven bevel gear (708) and the lead screw (707) rotate inside the cavity (202). During the rotation of the lead screw (707), the drive plate (705) inside the cavity (202) performs vertical linear displacement motion. The second permanent magnet (704) embedded inside the drive plate (705) and the first permanent magnet (703) embedded inside the adjustment plate (701) form a magnetic field. The suction mechanism drives the adjusting plate (701) installed inside the cooling channel (201) to move up and down synchronously. The second temperature sensor (702) embedded in the adjusting plate (701) will detect the temperature data of different areas of the cooling channel (201) in real time. Based on the temperature difference of each area, the stopping position of the adjusting plate (701) can be precisely controlled. The position of the adjusting plate (701) can accelerate the flow rate of the cooling water in the corresponding area, improve the cooling rate of the corresponding area. By precisely controlling the water flow rate in different areas, the cooling temperature of each area of ​​the mold can be balanced, and the mold can be cooled evenly as a whole. This effectively avoids problems such as deformation and defects caused by excessive cooling temperature difference during the injection molding of the battery shell, and ensures the quality of product molding. Step 4: Mold removal and automatic unloading of finished products: After the battery casing has completely cooled and solidified, the electric push rod (303) installed on one side of the top fixed plate (301) of the base (3) is started. The output end of the electric push rod (303) drives the mold core (2) to move as a whole. The mold core (2) slides smoothly along the guide frame fixed on the top of the base (3) through the guide protrusions (205) formed on the front and rear sides, so that the mold core (2) is moved out smoothly from the inside of the outer mold frame (1). After the mold core (2) is separated from the outer mold frame (1), the ejection mechanism (4) set on the top and bottom of the mold core (2) is started. The cylinder (401) inside the ejection mechanism (4) drives the ejection plate (402) to perform telescopic ejection movement, and smoothly ejects the cooled and solidified battery casing from the inside of the mold core (2), completing the automated unloading operation of the finished product. The entire injection molding cooling and unloading process runs in a continuous manner, effectively improving the automation level and production efficiency of the battery casing injection molding production.

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