A controller box die-casting mold

Abstract

The utility model discloses a controller box die casting die, including movable die device, fixed die device and pouring device. Movable die device adopts the structure form of the precision embedding of movable die bottom plate in movable die seat plate, and the structure form guarantees the die accuracy. Fixed die device is equipped with the innovative type needle ejection mechanism, and the type core needle, the ejector pin and the support rod are driven synchronously through the push board subassembly, and the accurate linkage ejection and reset operation are realized under the action of reset spring. Pouring device guarantees the stable filling cavity of metal liquid through the design of optimized sprue bush and flow channel. The utility model discloses through modular assembly structure and collaborative ejection mechanism, the operation stability and the alignment accuracy of mould are improved significantly, effectively solve the deformation problem in the demoulding process of complex box, guarantee the forming quality and size consistency of casting, and the production efficiency and mould service life are improved greatly, reduce the maintenance cost simultaneously, and be applicable to the die casting forming of various precision controller box.

Description

Technical Field

[0001] This utility model relates to the field of die-casting mold technology, and in particular to a controller housing die-casting mold. Background Technology

[0002] In the field of die casting mold technology, controller housings, as complex and precision components, rely heavily on the rationality and reliability of mold design for their molding quality and production efficiency. Traditional die casting molds often encounter problems when molding box-shaped parts with deep cavities, thin walls, or small features, such as unstable core positioning, deformation or jamming during ejection, and difficulty in demolding after cooling. These issues affect the dimensional accuracy and surface quality of the castings. Furthermore, existing mold structures often lack integrated optimization and coordinated control of moving parts such as mold pins, ejector pins, and support rods, leading to mismatched demolding sequences and difficulty in ensuring the integrity and consistency of the molded housing. This also reduces the mold's lifespan and maintenance efficiency. Therefore, a new die casting mold structure is urgently needed to integrate and optimize functions such as cavity forming, ejection resetting, and pouring guidance to achieve efficient, stable, and high-precision die casting production of controller housings. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a controller housing die-casting mold, which integrates an innovative ejector pin mechanism into the fixed mold device, enabling the linkage and precise timing control of core extraction and casting ejection. The demolding process is smooth and stable, greatly reducing the risk of deformation or damage to the thin-walled deep cavity housing during the ejection process.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A controller housing die-casting mold, comprising A moving mold device includes a moving mold base plate and a moving mold bottom plate. The moving mold base plate is provided with a moving mold groove, and the moving mold bottom plate is embedded in the moving mold groove. The moving mold bottom plate is provided with a moving mold cavity. A fixed mold assembly includes a fixed mold base plate, a fixed mold bottom plate, and a mold pin ejection mechanism. The fixed mold base plate has a fixed mold groove on the side near the moving mold base plate. The fixed mold bottom plate is installed in the fixed mold groove and has a fixed mold cavity. A cavity for a controller housing is formed between the fixed mold cavity and the moving mold bottom plate. The fixed mold base plate has a mounting groove on the side facing away from the moving mold base plate. The mounting groove and the fixed mold bottom plate have multiple communicating mold pin holes, multiple communicating ejection holes, and multiple communicating support rod holes. The mold pin ejection mechanism includes a core pin. The assembly includes an ejector pin, a support rod, an ejector plate assembly, a fixed plate, and a return spring. The ejector plate assembly is movably disposed in the mounting slot. The core pin is disposed on the ejector plate assembly and extends into the fixed mold cavity through the core pin hole. The ejector pin is disposed on the ejector plate assembly and extends into the surface of the fixed mold cavity through the ejection hole. The support rod is disposed on the ejector plate assembly and abuts against the surface of the moving mold base plate through the support rod hole. The fixed plate is fixedly disposed in the opening of the mounting slot. The return spring is disposed between the fixed plate and the ejector plate assembly. The gating device includes a sprue sleeve disposed on the fixed mold base plate, the sprue sleeve having a flow channel communicating with the cavity.

[0005] According to an embodiment of this utility model, a controller housing die-casting mold has at least the following beneficial effects: This utility model, by embedding the moving mold base plate into the moving mold groove of the moving mold seat plate, and together with the fixed mold base plate in the fixed mold device, forms a molding cavity. The structure is compact, with high alignment accuracy, effectively ensuring the molding quality and dimensional consistency of the controller housing casting. The fixed mold device integrates an innovative ejection mechanism, which, through the core pin, ejector pin, and support rod set on the same push plate assembly, achieves linkage and precise timing control of core extraction and casting ejection under the synergistic action of the return spring. The demolding process is smooth and stable, greatly reducing the risk of deformation or damage to the thin-walled deep-cavity housing during ejection. Simultaneously, the direct contact design between the support rod and the moving mold base plate provides rigid support for the entire ejection system, significantly improving the stability and reliability of the mold operation. The reasonable layout of the pouring device ensures stable molten metal filling, further improving the casting quality. This mold has a clever structural design and high functional integration, significantly improving production efficiency and mold lifespan.

[0006] According to some embodiments of the present invention, the push plate assembly includes a first push plate and a second push plate. The core pin, the ejector pin, and the support rod are mounted on the first push plate. The second push plate is fixedly connected to the first push plate to fix the core pin, the ejector pin, and the support rod.

[0007] The advantages are: the use of a split first push plate and second push plate structure facilitates the precise installation and secure fixing of precision parts such as core pins, ejector pins and support rods, thereby improving assembly efficiency and maintenance convenience.

[0008] According to some embodiments of the present invention, both the second push plate and the fixed plate are provided with spring grooves for fixing the reset spring.

[0009] The advantage is that the spring groove structure can effectively limit and guide the reset spring, preventing the spring from deflecting during compression and reset, and ensuring that the push plate assembly moves smoothly and resets accurately.

[0010] According to some embodiments of the present invention, the bottom surface of the mounting groove is provided with a support plate fixed to the mounting groove, and the support plate is provided with a through hole to accommodate the core pin, the ejector pin and the support rod.

[0011] The advantages are: the support plate enhances the support rigidity for the movement of the push plate assembly, while its through-hole design ensures the smooth passage of parts such as the core pin, thus improving the stability of the ejection mechanism.

[0012] According to some embodiments of the present invention, the support plate is provided with guide posts, and the push plate assembly is provided with guide sleeves that cooperate with the guide posts.

[0013] The benefits are that the cooperation between the guide post and the guide sleeve provides precise guidance for the reciprocating motion of the push plate assembly, effectively preventing motion jamming and ensuring the coaxiality and accuracy of the ejection action.

[0014] According to some embodiments of the present invention, the moving mold base plate is provided with side grooves leading to the moving mold bottom plate around its perimeter. The side grooves are equipped with side modules, side cylinders that drive the side modules to move along the side grooves, and fixing brackets installed on the side of the moving mold base plate for fixing the side cylinders. The support rods abut against the surface of the side modules.

[0015] The advantage is that the side core-pulling mechanism driven by the side cylinder enables the mold to smoothly form the complex features of the side of the box, which greatly expands the molding capacity and application range of the mold.

[0016] According to some embodiments of the present invention, the side module is provided with side pins leading to the cavity.

[0017] The advantage is that the side-shaped pin design allows for the direct molding of fine holes or boss structures on the side of the housing, reducing subsequent processing steps and improving production efficiency and the overall integrity of the parts.

[0018] According to some embodiments of the present invention, the mounting groove has a mounting step along its edge, and the fixing plate is mounted on the mounting step.

[0019] The advantages are: the installation steps provide a reliable positioning and installation benchmark for the fixing plate, simplify the assembly process, and ensure the overall flatness and stability of the fixing plate after installation.

[0020] According to some embodiments of the present invention, the side of the mounting groove is provided with an operating port, which is used to remove the fixing plate and allow the cooling pipe to enter. The operating port is provided with a fixing strip, which is used to fix the cooling pipe.

[0021] The advantages are: the design of the operating port greatly facilitates the disassembly and maintenance of the fixing plate and the layout of the cooling pipes, improves the maintainability of the mold and optimizes the cooling effect.

[0022] According to some embodiments of the present invention, the moving mold device is further provided with a moving mold ejection mechanism on the side opposite to the fixed mold device, and the moving mold ejection mechanism is used to eject the controller housing workpiece from the moving mold cavity.

[0023] The advantages are: the moving mold ejection mechanism enables the casting to be automatically demolded from the moving mold cavity, further ensuring the continuity and efficiency of the production process and reducing the intensity of manual operation.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of an embodiment of the present utility model; Figure 2 for Figure 1 Schematic diagram of the moving mold device; Figure 3 for Figure 1 Schematic diagram of the intermediate mold device; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 A schematic diagram of the other side of the central mold base plate; Figure 6 for Figure 3 Schematic diagram of the internal pin ejection mechanism; Figure 7 for Figure 6 A diagram showing the opening of the fixing plate; Figure 8 This is a schematic diagram of the side module.

[0027] Reference numerals: Moving mold base plate 100, moving mold bottom plate 110, moving mold cavity 120, fixed mold base plate 130, fixed mold bottom plate 140, fixed mold groove 150, fixed mold cavity 160, mounting groove 170, pin hole 180, ejector hole 190, support rod hole 200, core pin 210, ejector pin 220, support rod 230, fixing plate 240, return spring 250, sprue sleeve 260, first push plate 270, second push plate 280, spring groove 290, support plate 300, guide pillar 310, guide sleeve 320, side module 330, side cylinder 340, fixing frame 350, side pin 360, mounting step 370, operating port 380, fixing strip 390, moving mold ejection mechanism 400. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

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

[0032] The following is for reference. Figures 1-8A controller housing die-casting mold is described in detail with reference to a specific embodiment. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0033] like Figures 1-7 As shown, the controller housing die-casting mold comprises three main parts: a moving mold assembly, a fixed mold assembly, and a casting assembly. The moving mold assembly employs a structure where a moving mold base plate 110 is precisely embedded within the moving mold groove of a moving mold base plate 100. The moving mold base plate 110 has a moving mold cavity 120 for forming the housing structure. The fixed mold assembly includes a fixed mold base plate 130, a fixed mold base plate 140, and an innovative ejector pin mechanism. The fixed mold base plate 140 is installed within the fixed mold groove 150 of the fixed mold base plate 130, and its fixed mold cavity 160, together with the moving mold cavity 120, forms a complete controller housing cavity. A mounting groove 170 is provided on the side of the fixed mold base plate 130 facing away from the moving mold base plate 100. This mounting groove 170 and the fixed mold base plate 140 have multiple sets of interconnected ejector pin holes 180, ejector holes 190, and support rod holes 200, forming a precise hole system structure.

[0034] Specifically, such as Figures 4-7 As shown, the ejector mechanism, a core innovation of this mold, includes a push plate assembly, a core pin 210, an ejector pin 220, a support rod 230, a fixed plate 240, and a return spring 250. The push plate assembly adopts a combined structure of a first push plate 270 and a second push plate 280. This split design enables precise installation and secure fixing of precision parts such as the core pin 210, ejector pin 220, and support rod 230. The core pin 210 extends into the fixed mold cavity 160 through the core pin hole 180 to form the internal structure of the box. The ejector pin 220 acts on the casting surface through the ejection hole 190, and the support rod 230 forms a rigid contact with the surface of the moving mold base plate 110 through the support rod hole 200. Spring grooves 290 provided on the second push plate 280 and the fixed plate 240 provide reliable limiting and guiding for the return spring 250, effectively preventing spring deflection during compression and reset, ensuring smooth movement and accurate reset of the push plate assembly.

[0035] To further enhance the stability and precision of the mold, a support plate 300 is provided on the bottom surface of the mounting slot 170. The through holes on the support plate 300 ensure smooth passage of parts such as the core pin 210, enhancing the support rigidity for the movement of the ejector assembly. The guide post 310 on the support plate 300 cooperates with the guide sleeve 320 on the ejector assembly, providing precise guidance for the reciprocating motion of the ejector assembly, effectively preventing movement jamming and ensuring the coaxiality and precision of the ejection action. Figure 2 As shown, a side module 330 driven by a side cylinder 340 is installed in the side grooves provided around the moving mold base plate 100. The support rod 230 forms effective contact with the surface of the side module 330, as shown. Figure 8As shown, the side pins 360 provided on the side module 330 can directly form fine structures on the side of the box, expanding the molding capability of the mold.

[0036] like Figure 5 As shown, the mounting step 370 along the edge of the mounting groove 170 provides a reliable positioning and mounting reference for the fixing plate 240, simplifying the assembly process. Figure 1 As shown, the operating port 380 on the side of the mounting groove 170 facilitates the disassembly and maintenance of the fixing plate 240, and also allows for the fixing of the cooling pipes (not shown in the figure) via the fixing strip 390, improving the maintainability of the mold and optimizing the cooling effect. A moving mold ejection mechanism 400 is also provided on the back of the moving mold device, enabling automated demolding of the casting from the moving mold cavity 120, ensuring the continuity and efficiency of the production process.

[0037] The working process of the mold is as follows: When the mold is closed, the moving mold device and the fixed mold device are precisely aligned to form a complete cavity. The molten metal is smoothly injected into the cavity through the sprue sleeve 260 and the runner. During the cooling and forming process, the side core-pulling mechanism drives the side module 330 through the side cylinder 340 to complete the forming of the side structure. When the mold is opened, the ejector pin mechanism pushes the push plate assembly under the action of external power, so that the core pin 210, ejector pin 220 and support rod 230 work together to realize the linkage operation of core extraction and casting ejection. The support rod 230 provides rigid support for the ejection system by abutting against the moving mold base plate 110, and the return spring 250 ensures that the ejection mechanism is accurately reset. Finally, the moving mold ejection mechanism 400 completely ejects the finished casting, completing the entire production cycle.

[0038] This invention achieves a compact mold structure and high alignment accuracy through a modular assembly structure and a collaborative ejection mechanism, effectively ensuring the molding quality and dimensional consistency of the controller housing casting. The innovative core ejection mechanism, through the core pin 210, ejector pin 220, and support rod 230 mounted on the same push plate assembly, and with the synergistic action of the return spring 250, achieves linkage and precise timing control between core extraction and casting ejection. The demolding process is smooth and stable, greatly reducing the risk of deformation or damage to the thin-walled, deep-cavity housing during ejection. The direct contact design between the support rod 230 and the moving mold base plate 110 provides rigid support for the entire ejection system, significantly improving the stability and reliability of mold operation. The rational layout of the gating device ensures smooth molten metal filling, further enhancing casting quality. This mold structure is ingeniously designed with high functional integration, significantly improving production efficiency and mold lifespan, while optimizing maintenance structure to reduce operating costs.

[0039] In the description of this specification, the references to terms such as "an embodiment, some embodiments, illustrative embodiments, example, specific example, or examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A controller housing die-casting mold, characterized in that, include: The moving mold device includes a moving mold base plate (100) and a moving mold bottom plate (110). The moving mold base plate (100) is provided with a moving mold groove, and the moving mold bottom plate (110) is embedded in the moving mold groove. The moving mold bottom plate (110) is provided with a moving mold cavity (120). The fixed mold device includes a fixed mold base plate (130), a fixed mold bottom plate (140), and a mold pin ejection mechanism. The fixed mold base plate (130) has a fixed mold groove (150) on the side near the moving mold base plate (100). The fixed mold bottom plate (140) is installed in the fixed mold groove (150). The fixed mold bottom plate (140) has a fixed mold cavity (160). A cavity for the controller housing is formed between the fixed mold cavity (160) and the moving mold bottom plate (110). The fixed mold base plate (130) has a mounting groove (170) on the side away from the moving mold base plate (100). The mounting groove (170) and the fixed mold bottom plate (140) have multiple communicating mold pin holes (180), multiple communicating ejection holes (190), and multiple communicating support rod holes (200). The mold pin ejection mechanism includes a core pin. (210), ejector pin (220), support rod (230), push plate assembly, fixed plate (240) and return spring (250), the push plate assembly is movably disposed in the mounting groove (170), the core pin (210) is disposed on the push plate assembly and extends into the fixed mold cavity (160) through the core pin hole (180), the ejector pin (220) is disposed on the push plate assembly and extends into the surface of the fixed mold cavity (160) through the ejection hole (190), the support rod (230) is disposed on the push plate assembly and abuts against the surface of the moving mold base plate (110) through the support rod hole (200), the fixed plate (240) is fixedly disposed in the opening of the mounting groove (170), and the return spring (250) is disposed between the fixed plate (240) and the push plate assembly; The gating device includes a gating sleeve (260) disposed on the fixed mold base plate (130), the gating sleeve (260) having a flow channel communicating with the cavity.

2. The controller housing die-casting mold according to claim 1, characterized in that, The push plate assembly includes a first push plate (270) and a second push plate (280). The core pin (210), the ejector pin (220), and the support rod (230) are mounted on the first push plate (270). The second push plate (280) is fixedly connected to the first push plate (270) to fix the core pin (210), the ejector pin (220), and the support rod (230).

3. The controller housing die-casting mold according to claim 2, characterized in that, Both the second push plate (280) and the fixing plate (240) are provided with spring grooves (290) for fixing the reset spring (250).

4. The controller housing die-casting mold according to claim 1, characterized in that, The bottom surface of the mounting groove (170) is provided with a support plate (300) fixed to the mounting groove (170), and the support plate (300) is provided with a through hole to accommodate the core pin (210), the ejector pin (220) and the support rod (230) through which they pass.

5. A controller housing die-casting mold according to claim 4, characterized in that, The support plate (300) is provided with a guide post (310), and the push plate assembly is provided with a guide sleeve (320) that cooperates with the guide post (310).

6. The controller housing die-casting mold according to claim 1, characterized in that, The moving mold base plate (100) is provided with side grooves leading to the moving mold base plate (110) around its perimeter. The side grooves are equipped with side modules (330), side cylinders (340) that drive the side modules (330) to move along the side grooves, and fixing brackets (350) installed on the side of the moving mold base plate (100) for fixing the side cylinders (340). The support rod (230) abuts against the surface of the side modules (330).

7. A controller housing die-casting mold according to claim 6, characterized in that, The side module (330) is provided with a side pin (360) leading to the cavity.

8. The controller housing die-casting mold according to claim 1, characterized in that, The mounting groove (170) has a mounting step (370) along its edge, and the fixing plate (240) is mounted on the mounting step (370).

9. A controller housing die-casting mold according to claim 1, characterized in that, The mounting slot (170) has an operation port (380) on its side. The operation port (380) is used to remove the fixing plate (240) and allow the cooling pipe to enter. The operation port (380) is provided with a fixing strip (390) for fixing the cooling pipe.

10. A controller housing die-casting mold according to claim 1, characterized in that, The moving mold device is also provided with a moving mold ejection mechanism (400) on the side opposite to the fixed mold device. The moving mold ejection mechanism (400) is used to eject the controller housing workpiece from the moving mold cavity (120).

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