Automobile connecting rod embedding injection mold

Abstract

The utility model discloses an automobile connecting rod embedding injection mold, and relates to the technical field of automobile accessory production and processing. The die comprises a die body, the mold body comprises a bottom mold, a movable mold arranged on the upper side face of the bottom mold, a fixed mold oppositely arranged on the upper side of the movable mold, a top plate arranged on the upper side of the fixed mold, an injection molding sprue embedded in the middle of the top plate, a mold cavity formed in the movable mold and the fixed mold, and an embedded mold core arranged in the mold cavity of the movable mold. The limiting piece is matched with a pre-buried connecting rod in the pre-buried mold core, and the water cooling pipe and the pre-buried mold core are installed in a matched mode. The embedded connecting rod is arranged in the embedded mold core and is fixed through the limiting piece, so that the accurate position of the embedded connecting rod in the injection molding process is ensured, the connecting rod is prevented from deviating or misplacing in the molding process, the reliability of combination of the connecting rod and a plastic piece is improved, the embedded connecting rod can be uniformly wrapped by molten plastic, and the injection molding quality is improved. Good connection strength is formed, and the mechanical performance of the product is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts production and processing, and particularly relates to an injection mold for embedding an automobile connecting rod. Background Art

[0002] In the traditional injection molding process, metal parts (such as connecting rods) are usually processed separately and then assembled with plastic parts by welding or other methods, which may lead to insufficient strength at the connection part, high assembly complexity, long production cycle, and high cost. By directly embedding the metal connecting rod into the plastic part, the strength and reliability of the connection part can be significantly improved. Compared with the traditional method of injection molding first and then assembling, the in-mold embedding technology can reduce the subsequent assembly process, thereby reducing production costs and improving production efficiency.

[0003] However, the current in-mold embedding mold design is relatively complex, resulting in relatively cumbersome assembly and positioning stages, and it is difficult to achieve high-efficiency production and high-quality control; during the mold replacement and maintenance stages, the time wasted during the interval will affect production efficiency.

[0004] Therefore, we provide an injection mold for embedding an automobile connecting rod to solve the above problems. Content of the Utility Model

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model provides an injection mold for embedding an automobile connecting rod, which includes an injection molding support, and mold bodies symmetrically mounted on the upper part of the injection molding support. The injection molding support includes a chassis, a pillar fixed at the middle position of the upper side of the chassis, a support plate rotatably arranged at the top of the pillar, and a support rod fixed at the outer edge of the lower side of the support plate;

[0007] The mold body includes a bottom mold arranged on the upper side of the chassis, a movable mold arranged on the upper side of the bottom mold, a fixed mold oppositely arranged above the movable mold, a top plate arranged above the fixed mold, an injection gate embedded in the middle position of the top plate, a mold cavity arranged inside the movable mold and the fixed mold, a pre-embedded mold core arranged inside the mold cavity of the movable mold, a limiting part matched with the pre-embedded connecting rod in the pre-embedded mold core, and a water-cooling pipe adaptively installed with the pre-embedded mold core.

[0008] The utility model is further arranged such that a bottom plate is arranged inside the bottom mold, a thimble and a return pin are fixed on the upper side of the bottom plate, and the thimble penetrates through the pre-embedded mold core.

[0009] The utility model is further arranged such that a guide post is arranged at the edge of the bottom mold, and the guide post penetrates through the corners of the movable mold, the fixed mold, and the top plate.

[0010] The present utility model is further configured such that positioning members are fixedly assembled on the sides of the moving mold and the fixed mold, and a locking member is embedded at the edge of the moving mold. The locking member cooperates with the lower edge of the fixed mold, and the locking member is fixed to the edge of the embedded mold core.

[0011] The present utility model is further configured such that the lower end of the injection gate penetrates through the mold cavity inside the fixed mold, and the injection gate communicates with the inside of the embedded mold core through a diversion pipe.

[0012] The present utility model is further configured such that the support rod is movably and fittingly arranged on the upper edge of the chassis, the support plate is located directly above the mold body, and the support plate is provided with a circular hole corresponding to the injection gate.

[0013] The present utility model has the following beneficial effects:

[0014] 1. By arranging an embedded connecting rod in the embedded mold core and fixing it with a limiting member, the present utility model ensures the precise position of the embedded connecting rod during the injection molding process, avoids the offset or dislocation of the connecting rod during the molding process, thereby improving the reliability of the connection between the connecting rod and the plastic part, enabling the molten plastic to evenly wrap the embedded connecting rod, forming good connection strength, improving the mechanical properties of the product, and the water-cooling pipe effectively controls the temperature of the embedded mold core and its surrounding area, speeds up the cooling rate, shortens the cooling time, improves the production efficiency, and helps to maintain the dimensional stability of the product.

[0015] 2. By arranging an injection molding bracket to assist the injection molding process of the mold body, the present utility model facilitates the rapid assembly and switching between the external injection end and the mold body, thereby improving the production efficiency and simplifying the operation steps.

[0016] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic view of one side of the overall structure of the present utility model.

[0019] Figure 2 It is a schematic view of the other side of the overall structure of the present utility model.

[0020] Figure 3 It is a schematic view of the structure of the mold body in the present utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of the moving mold in the present utility model.

[0022] Figure 5 This is an assembly schematic diagram of the embedded mold core in the present utility model.

[0023] In the attached drawings, the components represented by each reference numeral are listed as follows:

[0024] 1. Injection molding bracket; 11. Chassis; 12. Pillar; 13. Support plate; 14. Strut; 2. Mold body; 21. Bottom mold; 22. Bottom plate; 23. Moving mold; 24. Fixed mold; 25. Top plate; 26. Injection gate; 27. Positioning member; 28. Mold cavity; 29. Guide post; 210. Ejector pin; 211. Return pin; 212. Water cooling pipe; 213. Embedded mold core. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment

[0027] Please refer to Figures 1-5 , the present utility model is an injection molding mold for embedding an automotive connecting rod, including an injection molding bracket 1 and a mold body 2 symmetrically mounted on the upper part of the injection molding bracket 1. The injection molding bracket 1 includes a chassis 11, a pillar 12 fixed at the middle position of the upper side of the chassis 11, a support plate 13 rotatably arranged at the top of the pillar 12, and a strut 14 fixed at the outer edge of the lower side of the support plate 13; the mold body 2 includes a bottom mold 21 arranged on the upper side of the chassis 11, a moving mold 23 arranged on the upper side of the bottom mold 21, a fixed mold 24 oppositely arranged above the moving mold 23, a top plate 25 arranged above the fixed mold 24, an injection gate 26 embedded in the middle position of the top plate 25, a mold cavity 28 arranged inside the moving mold 23 and the fixed mold 24, an embedded mold core 213 arranged inside the mold cavity 28 of the moving mold 23, a limiting member cooperating with the embedded connecting rod in the embedded mold core 213, and a water cooling pipe 212 adaptively installed with the embedded mold core 213;

[0028] In the injection molding bracket 1, the chassis 11 serves as the basic structure of the entire injection molding bracket 1, providing stable support for the injection molding bracket 1. The pillar 12 is vertically fixed at the middle position of the upper side of the chassis 11 and is used for the installation of the support plate 13, thus facilitating the positioning of the external injection end. The support plate 13 can rotate around the pillar 12, which is convenient for the switching and assembly of the external injection end and the mold body 2. The support rod 14 is used to increase the overall stability. The moving mold 23 is located above the bottom mold 21 and is the main movable part of the mold body 2, responsible for cooperating with the fixed mold 24 to form the mold cavity 28. The mold cavity 28 is used to form the shape of the product. The pre-embedded mold core 213 is located in the mold cavity 28 inside the moving mold 23, and the pre-embedded connecting rod is placed here so as to be wrapped by plastic during the injection molding process. The water-cooling pipe 212 is adaptively installed with the pre-embedded mold core 213 and is used to cool the pre-embedded mold core 213 and the plastic material around it during the injection molding process to ensure the product quality.

[0029] Specifically, the bottom mold 21 is internally provided with a bottom plate 22. The ejector pin 210 and the return pin 211 are fixed on the upper side of the bottom plate 22. The ejector pin 210 penetrates through the pre-embedded mold core 213. The guide posts 29 are arranged at the edges of the bottom mold 21, and the guide posts 29 penetrate through the corresponding corners of the moving mold 23, the fixed mold 24, and the top plate 25. The positioning parts 27 are assembled and fixed on the sides of the moving mold 23 and the fixed mold 24. And a locking part is embedded at the edge of the moving mold 23, and the locking part cooperates with the lower edge of the fixed mold 24, and the locking part is fixed on the edge of the pre-embedded mold core 213.

[0030] In the mold body 2, the bottom mold 21 is the bottommost component of the mold body 2. The ejector pin 210 is fixed on the upper side of the bottom plate 22 and is used to push the product out of the mold during demolding. The return pin 211 is also fixed on the upper side of the bottom plate 22 to help the ejector pin 210 return to the initial position after each demolding. The guide posts 29 are located at the edges of the bottom mold 21 and pass through the corresponding holes of the moving mold 23, the fixed mold 24, and the top plate 25 to ensure the precise alignment of the various components of the mold. The positioning parts 27 ensure the accurate alignment of the moving mold 23 and the fixed mold 24 when they are closed. The locking parts ensure the tightness when the mold is closed.

[0031] Furthermore, the support rod 14 is movably and fittingly arranged on the upper side edge of the chassis 11. The support plate 13 is located directly above the mold body 2, and the support plate 13 is provided with a round hole corresponding to the injection gate 26. The lower end of the injection gate 26 penetrates through the mold cavity 28 inside the fixed mold 24, and the injection gate 26 is internally communicated with the pre-embedded mold core 213 through a manifold pipe. The main function of the top plate 25 is to fix the injection gate 26. The injection gate 26 is used to introduce the molten plastic into the mold cavity 28. A hole is opened at the position corresponding to the injection gate 26 on the support plate 13 to ensure the alignment of the gate and the mold cavity 28.

[0032] The usage steps of the automotive connecting rod embedded injection mold are as follows:

[0033] 1. Place the embedded connecting rod in the embedded mold core 213. Close the moving mold 23 and the fixed mold 24. The guide posts 29 ensure the precise alignment of the two and keep them relatively fixed under the action of the positioning member 27. After the two are fully assembled, the locking member locks the embedded mold core 213 synchronously.

[0034] 2. The molten plastic is injected into the mold cavity 28 through the injection gate 26. The injection gate 26 communicates with the inside of the embedded mold core 213 through a shunt pipe. The plastic flows around the embedded connecting rod and wraps it.

[0035] 3. Start the water-cooling pipe 212 to quickly cool the embedded mold core 213 and the plastic around it, accelerating the curing process.

[0036] 4. Open the mold body 2. The ejector pin 210 ejects the formed product. The return pin 211 ensures that the ejector pin 210 returns to the starting position after each cycle.

[0037] With the above steps, the connecting rod can be firmly embedded in the plastic part, improving the production efficiency and product quality.

[0038] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0039] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the art in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An injection mold for embedding an automotive connecting rod, comprising an injection molding bracket (1) and a mold body (2) symmetrically mounted on the upper part of the injection molding bracket (1), characterized in that: The injection molding bracket (1) includes a chassis (11), a pillar (12) fixed at the middle position of the upper side of the chassis (11), a support plate (13) rotatably arranged at the top of the pillar (12), and a support rod (14) fixed at the outer edge of the lower side of the support plate (13); The mold body (2) includes a bottom mold (21) arranged on the upper side of the chassis (11), a moving mold (23) arranged on the upper side of the bottom mold (21), a fixed mold (24) oppositely arranged above the moving mold (23), a top plate (25) arranged above the fixed mold (24), an injection gate (26) embedded in the middle position of the top plate (25), a mold cavity (28) arranged inside the moving mold (23) and the fixed mold (24), a pre-embedded mold core (213) arranged inside the mold cavity (28) of the moving mold (23), a limiting member matched with the pre-embedded connecting rod in the pre-embedded mold core (213), and a water-cooling pipe (212) adaptively installed with the pre-embedded mold core (213).

2. The injection mold for embedding an automotive connecting rod according to claim 1, wherein The bottom mold (21) is internally provided with a bottom plate (22), and ejector pins (210) and return pins (211) are fixed on the upper side of the bottom plate (22), and the ejector pins (210) penetrate through the pre-embedded mold core (213).

3. The in-mold insert injection mold for an automotive connecting rod according to claim 1, wherein Guide columns (29) are arranged at the edges of the bottom mold (21), and the guide columns (29) penetrate through the corners of the moving mold (23), the fixed mold (24), and the top plate (25).

4. The in-mold insert injection mold for an automotive connecting rod according to claim 1, wherein, Positioning members (27) are assembled and fixed on the sides of the moving mold (23) and the fixed mold (24), and a locking member is embedded at the edge of the moving mold (23), and the locking member is matched with the lower edge of the fixed mold (24), and the locking member is fixed at the edge of the pre-embedded mold core (213).

5. The automotive connecting rod insert injection mold according to claim 1, characterized in that, The lower end of the injection gate (26) penetrates through the mold cavity (28) inside the fixed mold (24), and the injection gate (26) is communicated with the inside of the pre-embedded mold core (213) through a shunt pipe.

6. The injection mold for embedding an automotive connecting rod according to claim 1, wherein, The support rod (14) is movably and closely attached to the upper side edge of the chassis (11), the support plate (13) is located directly above the mold body (2), and a round hole corresponding to the injection gate (26) is opened in the support plate (13).

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