New energy battery cover bending thin wall structure forming device

Abstract

The utility model belongs to the technical field of forming device, especially, relate to a new energy battery cover bending thin wall structure forming device, the device includes: the upper die includes the upper die plate and first mould core, and first mould core is located in the upper die plate, and there is a plurality of sprue on first mould core array arrangement, the lower die includes the lower die plate and second mould core, and second mould core is located in the lower die plate, and second mould core and first mould core form a plurality of forming cavity between, and every forming cavity communicates with four sprue. The new energy battery cover bending thin wall structure forming device, through every forming cavity corresponding four sprue, realizes the multiaxis synchronous feeding of melt from bending thin wall structure, and then shortens melt flow distance, ensures the forming quality.

Description

Technical Field

[0001] This application relates to the field of forming equipment technology, and in particular to a forming equipment for bending thin-walled structures of new energy battery covers. Background Technology

[0002] The thin-walled bending structure of new energy battery covers places extremely high demands on the uniformity of melt flow in the molding process. In existing technologies, most traditional hot runner molding devices adopt a single-point hot runner design. The melt in a single-point hot runner needs to flow a long distance to reach the distant bending area. During this process, the melt will solidify prematurely due to the low temperature, resulting in material shortage at the edges or excessive surface roughness.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] In view of at least one of the above technical problems, this application provides a device for forming a thin-walled structure by bending a new energy battery cover.

[0005] This application provides a device for forming a thin-walled structure by bending a new energy battery cover, the device comprising:

[0006] The upper mold includes an upper template and a first mold core. The first mold core is located in the upper template and has multiple gates arranged in an array on the first mold core.

[0007] The lower mold includes a lower template and a second mold core. The second mold core is located in the lower template, and multiple molding cavities are formed between the second mold core and the first mold core. Each molding cavity is connected to four gates.

[0008] This new energy battery cover bending thin-walled structure forming device uses four gates corresponding to each forming cavity to realize the simultaneous feeding of melt from multiple directions of the bending thin-walled structure, thereby shortening the melt flow distance and ensuring the forming quality.

[0009] In some possible implementations, the four gates corresponding to each molding cavity are arranged along the second direction.

[0010] In some possible implementations, the number of molding cavities is four.

[0011] In some possible implementations, the lower mold includes a base plate, and an ejector mechanism is provided between the base plate and the lower mold plate.

[0012] In some possible implementations, the ejector mechanism includes a top plate and upper ejector columns. The top plate is movably disposed between the bottom plate and the lower template. There are multiple upper ejector columns evenly distributed on the top plate, and parts of the upper ejector columns pass through the second mold core.

[0013] In some possible implementations, a spring is provided between the top plate and the lower template.

[0014] In some possible implementations, the base plate is provided with multiple guide posts, and the top plate is fitted into the guide posts.

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the new energy battery cover bending thin-walled structure forming device provided in the embodiments of this application;

[0018] Figure 2 yes Figure 1 Schematic diagram of the upper and middle mold;

[0019] Figure 3 yes Figure 1 Schematic diagram of the top feeding mechanism;

[0020] In the diagram: 100, upper mold; 110, upper template; 120, first mold core; 130, gate;

[0021] 200. Lower mold; 210. Lower template; 220. Second mold core; 230. Molding cavity; 240. Base plate;

[0022] 300. Ejector mechanism; 310. Top plate; 320. Upper ejector column; 330. Spring; 340. Guide column; Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] like Figures 1 to 3 As shown in the figure, this embodiment provides a device for forming a thin-walled structure by bending a new energy battery cover. The device includes an upper mold 100 and a lower mold 200.

[0025] The following is a detailed description of the structure of the thin-walled bending forming device for new energy battery covers.

[0026] The upper mold 100 includes an upper template 110 and a first mold core 120. The first mold core 120 is disposed in the upper template 110 and has multiple gates 130 arranged in an array on the first mold core 120. The lower mold 200 includes a lower template 210 and a second mold core 220. The second mold core 220 is disposed in the lower template 210 and forms multiple molding cavities 230 between the second mold core 220 and the first mold core 120. Each molding cavity 230 is connected to four gates 130.

[0027] After the mold is closed, the molten raw material is simultaneously injected into the molding cavity 230 through multiple gates 130 on the first mold core 120. Since each molding cavity 230 is connected to four gates 130, the raw material fills the molding cavity 230 from multiple directions and forms a bent thin-walled structure of the battery cover after cooling and solidification. When the mold is opened, the upper mold 100 rises and the molded part remains in the lower mold 200.

[0028] Thus, the multi-gate 130 design enables multi-directional uniform filling of molten material, shortens the mold filling time, and reduces weld line defects; the interconnected layout of the molding cavity 230 and the gate 130 optimizes the runner structure, improves the mold filling efficiency and the quality of the molded parts; the arrayed gates 130 and molding cavities 230 support mass production and significantly improve processing efficiency.

[0029] This new energy battery cover bending thin-walled structure forming device achieves multi-directional synchronous feeding of melt from the bending thin-walled structure through four gates 130 corresponding to each forming cavity 230, thereby shortening the melt flow distance and ensuring forming quality.

[0030] like Figures 1 to 3 As shown, in some embodiments, the four gates 130 corresponding to each molding cavity 230 are arranged along the second direction.

[0031] It is worth noting that the first direction corresponds to the X-axis (left-right direction) of the spatial coordinate system, the second direction corresponds to the Y-axis (front-back direction) of the spatial coordinate system, and the third direction corresponds to the Z-axis (up-down direction) of the spatial coordinate system.

[0032] Understandably, when the molten material enters the molding cavity 230 through the four gates 130 arranged along the second direction, the material forms a symmetrical flow path in the second direction, simultaneously filling the areas on both sides of the cavity, avoiding uneven pressure or insufficient filling caused by unilateral feeding. The gates 130 arranged along a specific direction make the material flow more even, effectively controlling the stress distribution of the molded part during the filling process, reducing problems such as deformation and shrinkage caused by uneven filling, and are especially suitable for the high-precision molding requirements of thin-walled structures.

[0033] like Figures 1 to 3 As shown, in some embodiments, the number of molding cavities 230 is four.

[0034] After mold closing, four molding cavities 230 are formed simultaneously. Molten raw materials are injected into the four cavities through their respective gates 130, and the forming of the four battery cover bending structures can be completed in one injection molding process. After mold opening, demolding is performed simultaneously. Compared with single-cavity molds, multi-cavity molds increase production efficiency by four times.

[0035] like Figures 1 to 3 As shown, in some embodiments, the lower mold 200 includes a base plate 240, and an ejector mechanism 300 is provided between the base plate 240 and the lower mold plate 210.

[0036] After mold opening, the ejector mechanism 300 moves upward under the action of the drive device, pushing the molded part in the lower mold plate 210 to detach from the second mold core 220, completing the demolding action; after demolding, the top plate 310 falls back to the initial position, waiting for the next cycle. The ejector mechanism 300 realizes automated demolding of the molded part, avoiding the tedious operation of manual part removal and improving production efficiency.

[0037] In some embodiments, the drive device can be a hydraulic cylinder or a pneumatic cylinder.

[0038] like Figures 1 to 3 As shown, in some embodiments, the ejector mechanism 300 includes a top plate 310 and an upper ejector column 320. The top plate 310 is movably disposed between the bottom plate 240 and the lower template 210. The upper ejector column 320 has multiple columns and is evenly distributed on the top plate 310. Parts of the upper ejector column 320 pass through the second mold core 220.

[0039] When the top plate 310 moves upward, the upper ejector pins 320 pass through the ejection holes of the second mold core 220, with their top ends abutting against the bottom of the molded part, uniformly ejecting the molded part from the molding cavity 230. After ejection, the robot arm removes the molded part, the top plate 310 falls back under the action of the drive device, and the upper ejector pins 320 return to the second mold core 220. Multiple evenly distributed upper ejector pins 320 provide balanced ejection force, avoiding deformation or damage to the molded part caused by single-point ejection; the mating structure between the ejector pins and the second mold core 220 ensures the guiding accuracy of the ejection process and improves the reliability of demolding.

[0040] In some embodiments, the top plate 310 includes an upper plate and a lower plate, which are fixed together by bolts. The upper plate has a mounting groove and a through hole along a third direction. The mounting groove and the through hole are connected. The upper top column 320 includes a cylindrical part and a mounting part connected together. The diameter of the mounting part is larger than the diameter of the cylindrical part. The lower surface of the mounting part contacts the lower plate. The cylindrical part passes through the through hole. This improves the connection stability between the upper top column 320 and the top plate 310.

[0041] like Figures 1 to 3 As shown, in some embodiments, a spring 330 is provided between the top plate 310 and the lower template 210.

[0042] When the molded part is demolded, the top plate 310 moves upward and the spring 330 is compressed. During the reset process, the top plate 310 moves downward and the elastic force of the spring 330 pushes the top plate 310 downward. In this way, the spring 330 provides buffering and auxiliary power during the demolding process of the molded part, reduces the load on the drive device, and ensures smooth and impact-free ejection.

[0043] like Figures 1 to 3 As shown, in some embodiments, the base plate 240 is provided with a plurality of guide posts 340, and the top plate 310 is sleeved in the guide posts 340.

[0044] In this way, the top plate 310 can move up and down along the guide post 340, providing precise guidance for the movement of the top plate 310.

[0045] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "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 application 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 application.

[0046] In the description of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0048] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying 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 application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0050] The above are merely preferred embodiments of this application and do not constitute any limitation on this application. Any person skilled in the art can make many possible variations and modifications to the technical solution of this application, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this application. Therefore, all equivalent changes made based on the shape, structure, and principle of this application without departing from the content of the technical solution of this application should be covered within the protection scope of this application.

Claims

1. A device for forming a thin-walled structure by bending a new energy battery cover, characterized in that, The device includes: The upper mold includes an upper template and a first mold core, wherein the first mold core is disposed in the upper template and a plurality of gates are arranged in an array on the first mold core; The lower mold includes a lower template and a second mold core. The second mold core is disposed in the lower template, and a plurality of molding cavities are formed between the second mold core and the first mold core. Each molding cavity is connected to four gates.

2. The new energy battery cover bending thin-walled structure forming device according to claim 1, characterized in that, The four gates corresponding to each molding cavity are arranged along the second direction.

3. The new energy battery cover bending thin-walled structure forming device according to claim 1, characterized in that, The number of molding cavities is four.

4. The new energy battery cover bending thin-walled structure forming device according to claim 1, characterized in that, The lower mold includes a base plate, and an ejector mechanism is provided between the base plate and the lower mold plate.

5. The new energy battery cover bending thin-walled structure forming device according to claim 4, characterized in that, The ejector mechanism includes a top plate and upper ejector columns. The top plate is movably disposed between the bottom plate and the lower template. There are multiple upper ejector columns evenly distributed on the top plate, and a portion of the upper ejector columns passes through the second mold core.

6. The new energy battery cover bending thin-walled structure forming device according to claim 5, characterized in that, A spring is provided between the top plate and the lower template.

7. The new energy battery cover bending thin-walled structure forming device according to claim 5, characterized in that, The base plate is provided with multiple guide posts, and the top plate is sleeved in the guide posts.

Images