A mold for making battery plates

Abstract

The utility model provides a kind of mould of making battery plate belongs to mould technical field.It solves the problem of the existing battery plate manufacturing process cumbersome.The utility model discloses a kind of mould of making battery plate including upper mould, lower mould, mould core, heating assembly, heating rod, controller, temperature sensor and positioning assembly.In the utility model, heating assembly is equipped in each mould core, the mould core can be heated by the heating assembly, to make mould core maintain at constant temperature, when mould closes, the edge of two mould cores is mutually abutted, and resin plate is heated simultaneously, at the same time, graphite plate is pressed and shaped, after closing a certain time, two resin plates melt and adhere on the surface of graphite plate, to complete the production of battery plate, avoid people again immerse graphite plate in resin liquid, reduce the manufacturing process of battery plate.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a mold for manufacturing battery plates. Background Technology

[0002] Existing battery plates are manufactured using graphite plates as raw materials. The specific process is as follows: First, the graphite plates need to be pressed into the specific shape required by the battery plates using a mold. Then, the formed graphite plates need to be immersed in a resin solution for treatment. Since two independent processes, pressing and immersion, need to be carried out one after the other, the entire production process is quite cumbersome. In addition, when the mold closes the graphite plates, it often lacks a positioning device, which causes the graphite plates to not be accurately placed in the designated position of the mold, resulting in the graphite plates not being able to be successfully molded by the mold. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a mold that can reduce the number of processes and ensure stable production of battery plates.

[0004] The objective of this utility model can be achieved through the following technical solution: a mold for manufacturing battery plates, comprising:

[0005] The upper mold and the lower mold are provided, with the upper mold movably positioned above the lower mold. Both the upper and lower molds contain mold cores, each mold core containing a heating assembly. Each heating assembly includes multiple heating rods inserted into the corresponding mold core. The upper and lower molds each contain a controller for controlling the heating rods. Both the upper and lower molds also contain temperature sensors for detecting the temperature of the corresponding mold core. Graphite plates and resin plates for fabricating battery electrodes are stacked on the lower mold. The lower mold core contains a positioning assembly that is elastically connected to the corresponding mold core.

[0006] In the aforementioned mold for manufacturing battery plates, the temperature sensor is electrically connected to the corresponding controller, and there are multiple positioning components, wherein at least two positioning components are located on the same straight line, and the remaining positioning components are located on another straight line, and the two straight lines are perpendicular to each other.

[0007] In the aforementioned mold for manufacturing battery plates, each positioning component includes a positioning post movably inserted into the mold core. The mold core of the lower mold is provided with a movable hole for the positioning post to be inserted. A sealing block for sealing the movable hole is provided on the side of the mold core away from the upper mold. A spring is provided between the sealing block and the positioning post.

[0008] In the aforementioned mold for manufacturing battery plates, the diameter of the end of the positioning post near the spring is greater than the diameter of the middle part of the positioning post, and the diameter of the end of the positioning post away from the spring is the same as the diameter of the middle part of the positioning post.

[0009] In the aforementioned mold for manufacturing battery plates, the core of the lower mold is provided with multiple guide pillars, and the core of the upper mold is provided with guide holes corresponding to the guide pillars.

[0010] In the aforementioned mold for manufacturing battery plates, a sealing ring is provided around the outer side of the lower mold.

[0011] In the aforementioned mold for manufacturing battery plates, the lower mold has an air extraction block at its edge, an external air extraction hole on the air extraction block, and an internal air extraction hole communicating with the external air extraction hole inside the lower mold.

[0012] In the aforementioned mold for manufacturing battery plates, the lower mold is provided with a blocking component at the inner air extraction hole, and the blocking component is located directly above the inner air extraction hole.

[0013] In the above-mentioned mold for manufacturing battery plates, the blocking assembly includes a base plate connected to the lower mold, a baffle plate is provided on the base plate, a receiving cavity is provided on the side of the baffle plate away from the mold core, and a connecting hole is provided on the base plate that communicates with the inner air extraction hole.

[0014] In the above-mentioned mold for manufacturing battery plates, the base plate and the baffle are perpendicular to each other, the width of the base plate is greater than the width of the baffle, and the thickness of the mold core is greater than or equal to the height of the base plate and the baffle stacked together.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, a heating component is provided in each mold core. The heating component can heat the mold core to keep it at a constant temperature. When the mold is closed, the edges of the two mold cores abut against each other and heat the resin plate at the same time. Meanwhile, the graphite plate is pressed and shaped. After a certain period of time after the mold is closed, the two resin plates melt and adhere to the surface of the graphite plate, thereby completing the production of the battery plate. This avoids the need to immerse the graphite plate in resin liquid and reduces the manufacturing process of the battery plate.

[0017] 2. Before mold closing, two resin plates and a graphite plate need to be stacked and positioned on the mold core of the lower mold using multiple positioning components. This ensures that the two resin plates and the graphite plate fall precisely between the two mold cores, allowing the graphite plate to be successfully molded. Attached Figure Description

[0018] Figure 1This is a schematic diagram of a preferred embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the lower mold.

[0020] Figure 3 yes Figure 2 A schematic diagram of the structure after removing one of the blocking components.

[0021] Figure 4 This is a schematic diagram of the blocking component.

[0022] Figure 5 This is a schematic diagram of the internal structure of the upper mold.

[0023] Figure 6 This is a side view of the mold core.

[0024] Figure 7 yes Figure 6 Sectional view at AA. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figure 1 — Figure 7 The present invention provides a mold for manufacturing battery plates, comprising an upper mold 200, a lower mold 100, a mold core 300, a heating component 400, a heating rod 410, a controller 420, a temperature sensor 430, and a positioning component 500.

[0027] The upper mold 200 is movably disposed above the lower mold 100. Both the upper mold 200 and the lower mold 100 contain mold cores 300. Each mold core 300 contains a heating component 400. Each heating component 400 includes multiple heating rods 410 inserted into the corresponding mold core 300. Both the upper mold 200 and the lower mold 100 contain controllers 420 for controlling the heating rods 410. Both the upper mold 200 and the lower mold 100 contain temperature sensors 430 for detecting the temperature of the corresponding mold core 300.The lower mold 100 has a positioning component 500 on its core 300, which is elastically connected to the corresponding core 300. An air extraction block 120 is provided at the edge of the lower mold 100, with an external air extraction hole 121 on the block. An internal air extraction hole 130 communicating with the external air extraction hole 121 is provided inside the lower mold 100. A sealing ring 110 surrounds the outer surface of the lower mold 100. A temperature sensor 430 is electrically connected to a corresponding controller 420. Before use, the controller 420 must be operated to allow the heating rod 410 to heat the corresponding core 300. During heating, the temperature sensor 430 continuously monitors the temperature of the core 300. When the temperature of the mold core 300 reaches the preset temperature of the temperature sensor 430, the temperature sensor 430 transmits a signal to the controller 420, and the controller 420 controls the heating rod 410 to stop heating. When the temperature sensor 430 detects that the temperature of the mold core 300 is lower than the preset temperature of the temperature sensor 430, the temperature sensor 430 transmits a signal to the controller 420, and the controller 420 controls the heating rod 410 to continue heating the mold core 300. In this way, the mold core 300 can be kept at a constant temperature. At this time, the upper mold 200 is in the initial position. In use, the two resin plates and the graphite plate need to be stacked and positioned on the mold core 300 of the lower mold 100 by multiple positioning components 500. Specifically, the two... Resin plates are located on the upper and lower sides of the graphite plate, respectively. Then, the upper mold 200 moves downwards, and when the edge of the lower mold 100 is embedded into the upper mold 200 and the edge of the lower mold 100 contacts the sealing ring 110, a vacuum is created in the space enclosed by the upper mold 200 and the lower mold 100 using a vacuum device (not shown in the figure) connected to the vacuum block 120. During this process, the upper mold 200 continues to descend towards the lower mold 100 until the edge of the lower mold 100 abuts against the inner wall of the upper mold 200, at which point the upper mold 200 stops descending. At this point, the mold core 300 of the upper mold 200 presses the two resin plates and the graphite plate onto the mold core 300 of the lower mold 100, so that the two mold cores 300 can simultaneously heat the resin plates. Simultaneously, the graphite plate is pressed and shaped; that is, the shape of the graphite plate changes during mold closing to meet processing requirements. During this process, the mold core 300 of the upper mold 200 applies pressure to each positioning component 500 simultaneously during mold closing, causing each positioning component 500 to retract into the mold core 300 to a certain depth. After pressing for a certain period, the two resin plates melt and adhere to the surface of the graphite plate, thus completing the production of the battery electrode plate. This avoids further immersing the graphite plate in resin liquid, reducing the complexity of the battery electrode plate manufacturing process. Afterward, the upper mold 200 rises to its initial position to separate from the lower mold 100, allowing the completed battery electrode plate to be removed from the mold core 300 of the lower mold 100.

[0028] In this invention, the product formed by stacking resin plates and graphite plates together without molding is called a semi-finished product, and the product formed by molding resin plates and graphite plates is called a finished product. The overall shape of the semi-finished product is a cuboid.

[0029] There are multiple positioning components 500, of which at least two positioning components 500 are located on the same straight line, and the remaining positioning components 500 are located on another straight line. The two straight lines are perpendicular to each other. When positioning the semi-finished product, one side of the semi-finished product needs to be abutted against the multiple positioning components 500 located on the same straight line, and the other side of the semi-finished product needs to be abutted against the multiple positioning components 500 located on another straight line. In this way, the semi-finished product can be positioned and placed on the mold core 300 of the lower mold 100.

[0030] Each of the positioning components 500 includes a positioning post 510 movably inserted into the mold core 300. The mold core 300 of the lower mold 100 is provided with a movable hole 310 for the positioning post 510 to be inserted. The side of the mold core 300 away from the upper mold 200 is provided with a sealing block 520 for blocking the movable hole 310. A spring 530 is provided between the sealing block 520 and the positioning post 510. When the positioning post 510 is not subjected to external force, the end of the positioning post 510 away from the spring 530 extends out of the mold core 300. When the positioning post 510 is subjected to pressure, the positioning post 510 will retract into the movable hole 310 to avoid the positioning post 510 interfering with the descent of the mold core 300 of the upper mold 200. At the same time, the spring 530 will be compressed. When the force on the positioning post 510 is removed, the positioning post 510 will extend out of the mold core 300 again under the elastic force of the spring 530.

[0031] Furthermore, the diameter of the end of the positioning post 510 near the spring 530 is larger than the diameter of the middle part of the positioning post 510, and the diameter of the end of the positioning post 510 away from the spring 530 is the same as the diameter of the middle part of the positioning post 510. With this structure, the positioning post 510 will never separate from the movable hole 310 during the movement of the positioning post 510 relative to the mold core 300.

[0032] The lower mold 100 has a plurality of guide pillars 320 on its core 300, and the upper mold 200 has guide holes 330 corresponding to the guide pillars 320 on its core 300. When the upper mold 200 and the lower mold 100 are in the process of mold closing, the plurality of guide pillars 320 will be inserted into the corresponding guide holes 330 so that the two cores 300 can be smoothly aligned and closed.

[0033] The lower mold 100 is provided with a blocking component 600 at the inner air extraction hole 130. The blocking component 600 is located directly above the inner air extraction hole 130. Through the action of the blocking component 600, it can prevent debris in the lower mold 100 from falling into the inner air extraction hole 130, so that the air extraction equipment can smoothly perform vacuuming on the mold.

[0034] Furthermore, the blocking assembly 600 includes a base plate 610 connected to the lower mold 100. A baffle 620 is provided on the base plate 610. A receiving cavity 621 is provided on the side of the baffle 620 facing away from the mold core 300. A communicating hole 611 communicating with the inner air extraction hole 130 is provided on the base plate 610. The base plate 610 and the baffle 620 are perpendicular to each other. The width of the base plate 610 is greater than the width of the baffle 620. The thickness of the mold core 300 is greater than or equal to the height of the base plate 610 and the baffle 620 stacked together. The baffle 620 is close to... One side of the mold core 300 is flush with the side of the base plate 610 near the mold core 300. When the mold is evacuated, the air in the mold will pass through the receiving cavity 621, the connecting hole 611, the inner air extraction hole 130, the outer air extraction hole 121 and the air extraction device in sequence, and finally be discharged into the atmosphere. During this process, since the receiving cavity 621 is located on the side of the baffle 620 away from the mold core 300, there is only a small gap between the baffle 620 and the inner wall of the lower mold 100. In this way, it can further prevent debris in the mold from entering the inner air extraction hole 130.

[0035] Both the lower and upper molds are equipped with support legs 140 on their sides. During installation, the upper and lower molds need to be installed inside the hydraulic press (not shown in the figure). Specifically, the support legs of the upper mold need to be installed on the lifting mechanism of the hydraulic press (not shown in the figure), and the support legs of the lower mold need to be installed on the bottom of the hydraulic press (not shown in the figure). During operation, the lifting mechanism (not shown in the figure) drives the upper mold to rise and fall, while the lower mold remains stationary. Specifically, the lifting mechanism can be a hydraulic cylinder (not shown in the figure) with a piston rod (not shown in the figure), which is installed on the top of the hydraulic press.

[0036] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0037] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A mold for manufacturing battery plates, characterized in that, include: The upper mold and the lower mold are provided, with the upper mold movably positioned above the lower mold. Both the upper and lower molds contain mold cores, each mold core containing a heating assembly. Each heating assembly includes multiple heating rods inserted into the corresponding mold core. The upper and lower molds each contain a controller for controlling the heating rods. Both the upper and lower molds also contain temperature sensors for detecting the temperature of the corresponding mold core. Graphite plates and resin plates for fabricating battery electrodes are stacked on the lower mold. The lower mold core contains a positioning assembly that is elastically connected to the corresponding mold core.

2. The mold for manufacturing battery plates according to claim 1, characterized in that, The temperature sensor is electrically connected to the corresponding controller. There are multiple positioning components, of which at least two positioning components are located on the same straight line, and the remaining positioning components are located on another straight line, and the two straight lines are perpendicular to each other.

3. The mold for manufacturing battery plates according to claim 2, characterized in that, Each of the positioning components includes a positioning post movably inserted into the mold core. The mold core of the lower mold is provided with a movable hole for the positioning post to be inserted. A sealing block for blocking the movable hole is provided on the side of the mold core away from the upper mold. A spring is provided between the sealing block and the positioning post.

4. The mold for manufacturing battery plates according to claim 3, characterized in that, The diameter of the end of the positioning post closest to the spring is greater than the diameter of the middle part of the positioning post, and the diameter of the end of the positioning post furthest from the spring is the same as the diameter of the middle part of the positioning post.

5. A mold for manufacturing battery plates according to claim 1, characterized in that, The lower mold core is provided with multiple guide pillars, and the upper mold core is provided with guide holes corresponding to the guide pillars.

6. The mold for manufacturing battery plates according to claim 1, characterized in that, A sealing ring is provided around the outer surface of the lower mold.

7. The mold for manufacturing battery plates according to claim 1, characterized in that, The lower mold is provided with an air extraction block at its edge, and the air extraction block is provided with an external air extraction hole. The lower mold is provided with an internal air extraction hole that communicates with the external air extraction hole.

8. A mold for manufacturing battery plates according to claim 7, characterized in that, The lower mold is equipped with a blocking component at the inner air extraction hole, and the blocking component is located directly above the inner air extraction hole.

9. A mold for manufacturing battery plates according to claim 8, characterized in that, The blocking assembly includes a base plate connected to the lower mold, a baffle plate on the base plate, a receiving cavity on the side of the baffle plate facing away from the mold core, and a connecting hole on the base plate that communicates with the inner air extraction hole.

10. A mold for manufacturing battery plates according to claim 9, characterized in that, The base plate and the baffle are perpendicular to each other, the width of the base plate is greater than the width of the baffle, and the thickness of the mold core is greater than or equal to the height of the base plate and the baffle stacked together.

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