Battery cover plate injection molding demolding device

Abstract

The application discloses a battery cover plate injection demolding device, which comprises an upper mold assembly and a lower mold assembly connected together, wherein the upper mold assembly is located above the lower mold assembly; the lower mold assembly comprises a lower mold plate, and a slot capable of accommodating a cover plate mold is arranged on the lower mold plate; the upper mold assembly comprises an upper mold plate, and an installation slot is arranged on the upper mold plate, and a rebound assembly is arranged in the installation slot; one end of the rebound assembly is connected with the cover plate mold; the rebound assembly can realize accurate positioning during mold closing, improve positioning accuracy, reduce the size deviation of products and improve the quality of products; the rebound assembly can stably rebound and reset during demolding, so that damage of products caused by unstable rebound is prevented, and the yield of products is improved; the whole injection demolding device is convenient to assemble, debug and maintain; the safety and quality of products are ensured, the products are prevented from being damaged during mold closing, the stability of the production process of products is ensured, and the quality of products is improved.

Description

Technical Field

[0001] This application relates to the field of battery cover technology, and in particular to a battery cover injection molding demolding device. Background Technology

[0002] In existing technologies, battery cover molding generally employs techniques such as injection molding and riveting.

[0003] In the existing battery cover injection molding structure design, the requirement is that the upper surface of the cover is injected with textured plastic. This design makes it easy for the product to stick to the upper mold during the injection molding process, which is not conducive to automated material handling and ultimately affects production efficiency.

[0004] In the existing injection molding structure design of cover plates, the cover plates need to be fixed, especially the poles of the cover plates need to be positioned. In the existing technology, the poles are prone to tilting during the injection molding process, which will result in dimensional defects in the finished product. Summary of the Invention

[0005] The purpose of this application is to provide a battery cover injection molding demolding device to solve at least one of the above-mentioned technical problems.

[0006] A battery cover injection molding demolding device includes an upper mold assembly and a lower mold assembly connected together, with the upper mold assembly located above the lower mold assembly. The lower mold assembly includes a lower template with a groove for inserting a cover mold. The upper mold assembly includes an upper template with an mounting groove, in which a spring-loaded component is disposed. One end of the spring-loaded component can contact the cover mold. During mold closing, the spring-loaded component is compressed under external force and acts on the cover mold to fix it. During demolding, the spring-loaded component loses external force and resets, thus completing the demolding of the upper and lower mold assemblies.

[0007] Its beneficial effects are: the springback component enables precise positioning during mold closing, improving positioning accuracy, reducing product dimensional deviations, and improving product quality; during demolding, the springback component provides stable springback reset, preventing damage to the product caused by unstable springback and improving product yield; the entire injection molding demolding device is easy to assemble, facilitating its debugging and maintenance; it ensures product safety and quality, preventing the product from being crushed during mold closing, thereby ensuring the stability of the product production process and improving product quality; in addition, the springback component allows for a certain gap between the upper and lower mold plates, preventing related materials from sticking to the upper mold plate during injection molding.

[0008] In some embodiments, the spring-back assembly includes a spring-back block, which is fixedly connected within the mounting slot;

[0009] One end of the rebound block is recessed inward, forming the first recessed part, which is arc-shaped.

[0010] In some embodiments, the spring-loaded assembly includes a positioning block, at least one positioning block is connected to the lower end of the spring-loaded block, the positioning block and the spring-loaded block are connected by at least one positioning screw, and a spring is fitted on one of the positioning screws.

[0011] In some embodiments, one end of the positioning block is recessed inward to form a second recess, the shape of which matches the shape of the first recess.

[0012] In some implementations, a first positioning pin is connected to the positioning block, which can contact the pole on the cover plate mold.

[0013] Its beneficial effects are: the first positioning pin is used to position the pole on the cover plate mold during mold closing.

[0014] In some embodiments, a second positioning pin is provided on the positioning block, the second positioning pin connects the spring block and the positioning block, and the second positioning pin can contact the cover plate mold.

[0015] Its beneficial effect is that the second positioning pin is used to limit the downward movement of the springback component during mold closing, preventing overpressure damage to the product.

[0016] In some embodiments, a third positioning pin is provided on the positioning block, the third positioning pin connects the spring block and the positioning block, and the third positioning pin can contact the lower template.

[0017] Its beneficial effect is that the third positioning pin is used to limit the downward movement of the springback component during mold closing, preventing overpressure damage to the product.

[0018] In some implementations, the spring block is connected to an injection hot runner for injection molding into the cover plate mold, and the injection hot runner can be connected to the injection molding device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of this application.

[0021] Figure 2 This is a structural diagram of the template above.

[0022] Figure 3 This is a schematic diagram of the springback assembly.

[0023] Figure 4 This is a schematic diagram of the rebound block.

[0024] Figure 5 This is a schematic diagram of the positioning block.

[0025] Figure 6 This is a schematic diagram of the springback assembly during mold closing.

[0026] Figure 7 This is a schematic diagram of the springback assembly.

[0027] Explanation of the reference numerals in the attached diagram:

[0028] 1. Upper mold assembly; 2. Lower mold assembly; 3. Springback assembly; 4. Injection hot runner; 11. Upper mold plate; 21. Lower mold plate; 31. Springback block; 32. Positioning block; 33. Positioning screw; 34. Spring; 111. Mounting slot; 211. Slot; 311. First recess; 321. Second recess; 322. First positioning pin; 323. Second positioning pin; 324. Third positioning pin; Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only some, not all, of the embodiments of this application, and are used merely to explain this application and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," "both ends," "both sides," "bottom," and "top," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the elements 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 application. In addition, the terms "first," "second," "upper-level," "lower-level," "main," and "secondary," etc., are used for descriptive purposes only and can be simply used to more clearly distinguish different components, and should not be construed as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] like Figures 1-2 As shown,

[0033] A battery cover injection molding demolding device includes an upper mold assembly 1 and a lower mold assembly 2 connected together, with the upper mold assembly 1 located above the lower mold assembly 2. The lower mold assembly 2 includes a lower template 21, on which a groove 211 for inserting a cover mold is provided. The upper mold assembly includes an upper template 11, on which an mounting groove 111 is provided, and a spring-loaded component 3 is disposed within the mounting groove 111. One end of the spring-loaded component 3 can contact the cover mold. During mold closing, the spring-loaded component 3 is compressed under external force and acts on the cover mold to fix it. During demolding, the spring-loaded component 3 loses the external force and resets, and the upper mold assembly 1 and the lower mold assembly 2 complete demolding.

[0034] Its beneficial effects are: the springback component 3 can achieve precise positioning during mold closing, improve positioning accuracy, reduce product dimensional deviation, and improve product quality; during demolding, the springback component 3 rebounds and resets stably, preventing damage to the product caused by unstable springback and improving product yield; the entire injection molding demolding device is easy to assemble, facilitating its debugging and maintenance; it ensures product safety and quality, preventing the product from being crushed during mold closing, thereby ensuring the stability of the product production process and improving product quality; in addition, the springback component 3 can ensure a certain gap between the upper mold plate 11 and the lower mold plate 21, preventing related materials from sticking to the upper mold plate 11 during injection molding.

[0035] The lower mold component 2 is manufactured by milling and grinding using a CNC machining center to ensure that its flatness and dimensional accuracy meet the design requirements, providing a benchmark for subsequent component installation.

[0036] like Figures 3-5 As shown,

[0037] Preferably, the spring-loaded assembly 3 includes a spring-loaded block 31, which is fixedly connected in the mounting groove 111;

[0038] One end of the rebound block 31 is recessed inward and is configured as a first recessed part 311, which is arc-shaped.

[0039] Preferably, the springback assembly 3 includes a positioning block 32, at least one positioning block 32 is connected to the lower end of the springback block 31, and the positioning block 32 and the springback block 31 are connected by at least one positioning screw 33, with a spring 34 fitted on one of the positioning screws 33. The springback block 31 is designed in shape and size according to the springback requirements; the positioning screw 33 is a standard screw to ensure the connection strength and positioning accuracy with the springback block 31 and the upper mold assembly 1. The two are usually connected by threads, with necessary anti-loosening measures (such as setting spring washers).

[0040] Preferably, one end of the positioning block 32 is recessed inward to form a second recess 321, the shape of which matches the shape of the first recess 311.

[0041] Preferably, the positioning block 32 is connected to a first positioning pin 322, which can contact the pole post on the cover plate mold. The first positioning pin 322 is manufactured with high precision to ensure its fitting accuracy with the pole post and the lower mold assembly 2. The first positioning pin 322 usually adopts a very small clearance fit, and the specific selection is determined according to the actual working conditions.

[0042] Its beneficial effects are: the first positioning pin 322 is used to position the pole on the cover plate mold during mold closing.

[0043] Preferably, the positioning block 32 is provided with a second positioning pin 323, the second positioning pin 323 connects the spring block 31 and the positioning block 32, and the second positioning pin 323 can contact the cover plate mold.

[0044] Its beneficial effect is that the second positioning pin 323 is used to limit the downward movement of the springback component 3 during mold closing, preventing overpressure damage to the product.

[0045] Preferably, the positioning block 32 is provided with a third positioning pin 324, which connects the spring block 31 and the positioning block 32, and the third positioning pin 324 can contact the lower template 21.

[0046] Its beneficial effect is that the third positioning pin 324 is used to limit the downward movement of the springback component 3 during mold closing, preventing overpressure damage to the product.

[0047] It should be noted that the second positioning pin 323 and the third positioning pin 324 are both anti-overpressure positioning pins. Their materials must have certain strength and wear resistance. During processing, the dimensional accuracy must be strictly controlled to ensure that they can be accurately limited during the mold closing process.

[0048] Specifically, such as Figure 6As shown, in this embodiment, a positioning block 32 is connected to each of the left and right ends of the spring block 31. The positioning block 32 connected to the right end of the spring block 31 is basically the same as the positioning block 32 connected to the left end of the spring block 31 in terms of specific settings. Both have the same functions: a first positioning pin 322, a second positioning pin 323, and a third positioning pin 324. Two cover plate molds are placed inside the lower template 21, and the spring component 3 can act on the two cover plate molds at the same time.

[0049] In addition, the arrangement of the first positioning pin 322, the second positioning pin 323, and the third positioning pin 324 ensures a certain distance between the upper mold plate 11 and the lower mold plate 21, preventing direct contact between the upper mold plate 11 and the lower mold plate 21 and avoiding the relevant materials from sticking to the upper mold plate 11 during injection molding.

[0050] like Figure 7 As shown,

[0051] Preferably, the spring block 31 is connected to an injection hot runner 4 for injection molding into the cover plate mold, and the injection hot runner 4 can communicate with the injection molding device. In this embodiment, one of the injection hot runners 4 is disposed in the first recess 311 and the second recess 321.

[0052] The following describes the specific workflow of the battery cover injection molding demolding device:

[0053] The battery cover injection molding demolding device operates in three stages: material feeding, mold closing and injection molding, and mold opening, demolding and springback.

[0054] During the material loading stage, the cover plate mold and other related materials are loaded into the lower mold assembly 2;

[0055] During the mold closing and injection molding stage, the springback component 3 positions the cover plate mold under the action of external forces such as the drive device acting on the upper mold component 1. The first positioning pin 322 first contacts and presses against the small hole in the center of the upper surface of the pole post. When it is pressed to the set position, the second positioning pin 323 and the third positioning pin 324 play a role in limiting the mold closing pressure and mold closing stroke to avoid over-pressure damage to the mold and the product. After the upper and lower molds are completely closed, injection molding begins.

[0056] During the mold opening, demolding, and springback stage, the cover plate has been injection molded, the mold is opened, and the springback component 3 is freed from external force and resets, allowing the product to smoothly leave the mold or return to a suitable shape, facilitating subsequent material handling and inspection processes.

[0057] The above descriptions are merely some embodiments of this application, used only to illustrate the technical solutions of this application, and not to limit it. It should be understood that those skilled in the art can make improvements or substitutions based on the above descriptions without departing from the inventive concept of this application, and all such improvements and substitutions should fall within the protection scope of the appended claims. In this case, all details can be replaced with equivalent elements, and the materials, shapes, and sizes can also be arbitrary.

Claims

1. A battery cover injection molding demolding device, characterized in that, The system includes an upper mold assembly (1) and a lower mold assembly (2) connected together. The upper mold assembly (1) is located above the lower mold assembly (2). The lower mold assembly (2) includes a lower template (21) with a slot (211) for inserting a cover plate mold. The upper mold assembly includes an upper template (11) with an mounting groove (111) and a spring-loaded assembly (3) inside the mounting groove (111). One end of the spring-loaded assembly (3) can contact the cover plate mold. During mold closing, the spring-loaded assembly (3) is squeezed under external force and acts on the cover plate mold to fix it. During demolding, the spring-loaded assembly (3) loses external force and resets, and the upper mold assembly (1) and the lower mold assembly (2) complete demolding.

2. The battery cover injection molding demolding device according to claim 1, characterized in that, The spring-back assembly (3) includes a spring-back block (31), which is fixedly connected in the mounting groove (111); One end of the rebound block (31) is recessed inward to form a first recess (311), and the recess is arc-shaped.

3. The battery cover injection molding demolding device according to claim 2, characterized in that, The spring-loaded assembly (3) includes a positioning block (32), at least one of the positioning blocks (32) is connected to the lower end of the spring-loaded block (31), the positioning block (32) and the spring-loaded block (31) are connected by at least one positioning screw (33), and a spring (34) is sleeved on one of the positioning screws (33).

4. The battery cover injection molding demolding device according to claim 3, characterized in that, One end of the positioning block (32) is recessed inward to form a second recess (321), the shape of which matches the shape of the first recess (311).

5. The battery cover injection molding demolding device according to claim 4, characterized in that, The positioning block (32) is connected to a first positioning pin (322), which can contact the pole on the cover plate mold.

6. The battery cover injection molding demolding device according to claim 5, characterized in that, The positioning block (32) is provided with a second positioning pin (323), which connects the spring block (31) and the positioning block (32), and the second positioning pin (323) can contact the cover plate mold.

7. A battery cover injection molding demolding device according to claim 6, characterized in that, The positioning block (32) is provided with a third positioning pin (324), which connects the spring block (31) and the positioning block (32), and the third positioning pin (324) can contact the lower template (21).

8. The battery cover injection molding demolding device according to claim 7, characterized in that, The spring block (31) is connected to an injection hot runner (4) for injection molding into the cover plate mold. The injection hot runner (4) can be connected to the injection molding device.

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