Mould for secondary forming

Abstract

The utility model relates to the technical field of injection molds, and discloses a secondary forming mold which comprises a battery cover terminal rubber coating mold main body and a battery cover mold main body, the battery cover terminal rubber coating mold main body is used for injection molding of battery cover terminal rubber coating, and the battery cover mold main body is used for injection molding of a battery cover with terminal rubber coating; a runner is arranged on the battery cover terminal rubber coating mold main body, and a mold core is arranged in the battery cover terminal rubber coating mold main body. According to the utility model, the copper piece is firstly encapsulated, the electrode copper piece is fixed below the core, then the glue is injected, the encapsulated copper piece is ejected out after demoulding, then the encapsulated electrode is put into a battery cover mould, the upper mould core and the lower mould core are opened, the slide block is driven to move outwards along the inclined guide post, and the ejector pin ejects a product out. The efficient integrated production of the battery cover and the electrode is realized, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a secondary molding mold. Background Art

[0002] Injection molding is a process used for mass production of complex-shaped components. Specifically, it involves injecting heated, molten material into a mold cavity, where it cools and solidifies to produce a molded product. An injection mold is a tool used to produce plastic products; it also gives them their complete structure and precise dimensions. Injection molds generally consist of a movable mold and a fixed mold. The movable mold is mounted on the moving platen of the injection molding machine, while the fixed mold is mounted on the fixed platen. During injection molding, the movable and fixed molds close together to form the gating system and the mold cavity. When the mold is opened, the movable and fixed molds separate to facilitate the removal of the plastic product.

[0003] The traditional practice was to place the electrode directly into the mold to injection mold the battery cover. After a period of use, the electrode rubber coating between the electrode and the battery cover will crack, resulting in a decrease in the sealing performance of the battery cover, and may even cause safety hazards such as battery leakage.

[0004] To address this issue, the present invention provides a secondary molding die with an innovative structure. This unique design effectively prevents cracking of the electrode coating. By first coating the electrodes with adhesive and then placing the coated electrodes into the battery cover mold to injection mold the entire battery cover, cracking between the electrodes and the battery cover is prevented. Utility Model Content

[0005] The purpose of the present invention is to provide a secondary molding die to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a secondary molding mold, comprising a battery cover terminal encapsulation mold body and a battery cover mold body, wherein the battery cover terminal encapsulation mold body is used for injection molding the battery cover terminal encapsulation, and the battery cover mold body is used for injection molding the battery cover with the terminal encapsulation; the battery cover terminal encapsulation mold body is provided with a flow channel, and a mold core is provided inside the battery cover terminal encapsulation mold body;

[0007] The battery cover mold body is provided with an upper mold core and a lower mold core, a battery cover is arranged between the upper mold core and the lower mold core, and an injection-molded core is placed on the battery cover.

[0008] Preferably, the mold core is provided with a core, which is composed of an electrode copper piece and a rubber coating. The bottom of the mold core is provided with an ejector pin, which is provided on an ejector pin seat.

[0009] Preferably, sliders are provided on both sides of the lower mold core, and the sliders are provided with inclined guide pillars.

[0010] The utility model provides a secondary molding die with the following beneficial effects:

[0011] (1) The utility model effectively improves the sealing performance of the battery cover through the secondary molding process, ensures the firm combination of the battery cover and the electrode rubber coating, enhances the safety performance of the battery, avoids safety hazards such as battery leakage caused by cracking of the electrode rubber coating, and improves the service life and reliability of the product.

[0012] (2) The utility model coats the copper parts with glue first, fixes the electrode copper parts under the core, injects glue, and then demolds and ejects the coated copper parts. Then, the coated electrodes are placed in the battery cover mold, the upper mold core and the lower mold core are opened, and the slider moves outward along the inclined guide column. The ejector pin ejects the product, thereby realizing efficient integrated production of the battery cover and the electrode, reducing production costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional schematic diagram of the main structure of the battery cover terminal rubber encapsulation mold of the utility model;

[0014] Figure 2 This is a three-dimensional schematic diagram of the main structure of the battery cover mold of the utility model;

[0015] Figure 3 This is a flow channel view of the utility model;

[0016] Figure 4 This is a view of the electrode copper parts and rubber packaging of the utility model;

[0017] Figure 5 This is a view of the upper mold core of the utility model;

[0018] Figure 6 This is a view of the battery cover of the present utility model.

[0019] In the figure: battery cover terminal rubber-coated mold body 11, battery cover mold body 12, mold core 21, core 22, electrode copper part 221, rubber-coated 222, runner 23, ejector seat 24, ejector 25, upper mold core 31, lower mold core 32, battery cover 33, slider 34, inclined guide column 35. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] A preferred embodiment of a secondary molding mold provided by the present invention is as follows: Figure 1-6 As shown: A secondary molding mold, including a battery cover terminal glue-coated mold body 11 and a battery cover mold body 12. The battery cover terminal glue-coated mold body 11 is used to inject the battery cover terminal glue, and the battery cover mold body 12 is used to inject the battery cover with the terminal glue-coated; the battery cover terminal glue-coated mold body 11 and the battery cover mold body 12 are usually composed of the following main systems: Structural system: including an upper cavity mold and a lower core mold, which are closely matched to form the cavity shape of the product, and contain guiding, positioning and fixing mechanisms to ensure the correct alignment and stable movement of the mold parts; opening and closing system: controls the opening and closing action of the mold, usually composed of an ejector mechanism and an ejector mechanism; the ejector mechanism is used to eject the finished part from the mold, and the ejector mechanism is used to lift A core rod or piston is provided for demoulding; a filling system: including a nozzle, a nozzle temperature control system, a molten material supply system and a pressure control system; design and control have an important impact on product quality and production efficiency. Other systems that may be included include: an automatic demoulding system, an injection molding machine interface system, a transmission system, etc., to meet specific production needs; auxiliary components: a mold base, a mold frame, a mold core and a workpiece ejection device, etc. These components are usually made into universal types; a flow channel 23 is provided on the main body 11 of the battery cover terminal encapsulation mold, and a mold core 21 is provided inside the main body 11 of the battery cover terminal encapsulation mold, and a core 22 is provided on the mold core 21. The core 22 is composed of an electrode copper part 221 and an encapsulation 222. The bottom of the mold core 21 has an ejector pin 25, and the ejector pin 25 is provided on the ejector pin seat 24;

[0023] The battery cover mold body 12 is provided with an upper mold core 31 and a lower mold core 32. A battery cover 33 is provided between the upper mold core 31 and the lower mold core 32, and the battery cover 33 is placed with the injection-molded core 22. Sliders 34 are provided on both sides of the lower mold core 32, and the sliders 34 are provided with inclined guide posts 35. In the secondary molding mold described in the present invention, the function of the inclined guide posts 35 is to guide the sliders 34 to make precise lateral movements, ensuring the precise positioning and smooth demolding of the battery cover 33 during the molding process. The battery cover mold body 12 is provided with a corresponding lower mold core 32 and a slider 34 for ensuring the smooth flow of materials during the injection molding process. In addition, the inclined guide posts 35 run through the entire mold to ensure the stable operation of the opening and closing system, providing a guarantee for the production of high-precision battery covers. With this sophisticated design, the operation of the mold is not only efficient, but also ensures the consistency and reliability of the product.

[0024] Furthermore, the mold body is constructed from highly wear-resistant, high-strength materials to extend its lifespan and reduce maintenance costs, thereby further improving production efficiency while maintaining product quality. This design not only ensures product dimensional accuracy, but also reduces molding cycle time by optimizing the mold core and slider system, significantly improving production efficiency. Furthermore, the mold's durability and ease of maintenance significantly reduce long-term failure rates, ensuring stable production line operation.

[0025] When in use, first coat the copper part (electrode) with glue; fix the electrode copper part 221 under the core 22, then inject glue, and then demold and eject the coated copper part; put the coated electrode into the battery cover mold, open the upper mold core 31 and the lower mold core 32, drive the slider 34 to move outward along the inclined guide column 35, and the ejector pin ejects the product.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A secondary molding mold, comprising a battery cover terminal encapsulation mold body (11) and a battery cover mold body (12), characterized in that: The battery cover terminal encapsulation mold body (11) is used for injection molding the battery cover terminal encapsulation, and the battery cover mold body (12) is used for injection molding the battery cover with the terminal encapsulation; the battery cover terminal encapsulation mold body (11) is provided with a flow channel (23), and a mold core (21) is provided inside the battery cover terminal encapsulation mold body (11); The battery cover mold body (12) is provided with an upper mold core (31) and a lower mold core (32), a battery cover (33) is provided between the upper mold core (31) and the lower mold core (32), and an injection-molded core (22) is placed on the battery cover (33).

2. The secondary molding mold according to claim 1, characterized in that: The mold core (21) is provided with a core (22), which is composed of an electrode copper piece (221) and a rubber coating (222). The bottom of the mold core (21) is provided with an ejector pin (25), which is provided on an ejector pin seat (24).

3. The secondary molding die according to claim 1, characterized in that: Slide blocks (34) are provided on both sides of the lower mold core (32), and the slide blocks (34) are provided with inclined guide columns (35).

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