A high-precision positioning injection mold

Abstract

This utility model discloses a high-precision positioning injection mold, including a base plate. The upper surface of the base plate has symmetrically arranged mold corners. A pin plate is arranged on the upper surface of the base plate. A moving mold is arranged on the upper surface of the pin plate. A fixed mold is arranged on the upper surface of the moving mold. A runner plate is arranged on the upper surface of the fixed mold. A panel is arranged on the upper surface of the runner plate. A cavity is formed within the fixed mold. An installation groove and a fixing groove are respectively formed on one side of the fixed mold. A positioning post is arranged in the installation groove, and a concave plate is arranged in the fixing groove. This utility model uses the positioning posts and concave plates on the four surfaces of the fixed mold. The positioning post engages with the guide groove, achieving initial positioning. Simultaneously, the concave plate and the convex plate are matched, with the convex plate embedding into the concave plate, further improving the positioning accuracy. During the process of the positioning post engaging with the guide groove and the convex plate embedding into the concave plate, the two cooperate to effectively limit the horizontal displacement deviation between the moving mold and the fixed mold.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and in particular relates to a high-precision positioning injection mold. Background Technology

[0002] Molds are tools used to process and shape products, enabling mass production by giving plastics specific shapes and precise dimensions. They are widely used in the automotive, home appliance, and electronics industries. Their core structure includes a moving mold, a fixed mold, and systems for gating, temperature control, and ejection. Molding processes are classified into six categories: injection molding, compression molding, extrusion, blow molding, vacuum forming, and high-density polystyrene molding.

[0003] Existing molds suffer from inaccurate positioning during operation, leading to inconsistent dimensional accuracy of the finished products and resulting in deviations and errors that negatively impact product quality and performance. Furthermore, inaccurate positioning shortens mold lifespan; frequent misalignment and friction accelerate wear on mold components, increasing maintenance costs and replacement frequency. Simultaneously, inaccurate positioning reduces production efficiency, as each production run requires additional time for adjustment and calibration, hindering efficient continuous production—a significant disadvantage for large-scale industrial manufacturing. Therefore, a high-precision positioning injection mold is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a high-precision positioning injection mold to solve existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a high-precision positioning injection mold, comprising a base plate, mold corners symmetrically arranged on the upper surface of the base plate, a pin plate on the upper surface of the base plate, a moving mold on the upper surface of the pin plate, a fixed mold on the upper surface of the moving mold, a runner plate on the upper surface of the fixed mold, a panel on the upper surface of the runner plate, a cavity within the fixed mold, an installation groove and a fixing groove on one side of the fixed mold, a positioning pin within the installation groove, a recessed plate within the fixing groove, and a positioning block within the cavity. A reference block is provided on the upper surface of the positioning block. A guide groove and a fixing groove are respectively opened on one side of the moving mold. A slot is opened on both opposite surfaces of the inner wall of the guide groove. An anti-tipping block is provided in the slot. Two sets of bolts are symmetrically inserted on one side of the anti-tipping block. A locking block is provided at one end of the bolt. A threaded groove is opened on one side of the locking block. A positioning groove is opened on the upper surface of the moving mold. A protruding plate is provided in the fixing groove. Four sets of mounting grooves and fixing grooves are provided. The four sets of mounting grooves and fixing grooves are respectively provided on the four surfaces of the fixed mold.

[0007] Furthermore, the guide groove and the fixed groove are each provided with four sets, and the four sets of guide groove and fixed groove are respectively provided on the four surfaces of the moving mold. The shape and size of the positioning post are adapted to the guide groove, and the shape and size of the convex plate are adapted to the concave plate. The positioning post is engaged with the guide groove, and the convex plate is engaged with the concave plate.

[0008] Furthermore, the anti-tipping block is threadedly engaged with two sets of bolts, one end of each set of bolts is set in a threaded groove, and one end of each set of bolts is threadedly engaged with the threaded groove. The anti-tipping block is made of special steel material, one side of the anti-tipping block is attached to one side of the positioning post, the shape and size of the positioning block are adapted to the positioning groove, the positioning block is a wedge-shaped plate structure, and the positioning block is snapped into the positioning groove.

[0009] This utility model has the following beneficial effects:

[0010] This invention utilizes positioning pins and concave plates on the four surfaces of the fixed mold. The positioning pins engage with guide grooves for initial positioning, while the concave plates and convex plates fit together, with the convex plates embedding into the concave plates, further improving positioning accuracy. During the engagement of the positioning pins with the guide grooves and the embedding of the convex plates into the concave plates, the two work together to effectively limit the horizontal displacement deviation between the moving and fixed molds. This dual positioning structure allows for quick and precise alignment of the moving and fixed molds during mold closing, reducing the problem of prolonged mold closing time due to inaccurate positioning. Because the anti-tipping block's surface is in contact with one side of the positioning pin, the stability of the positioning pin is further enhanced, preventing tilting or wobbling during positioning. After the positioning pin is engaged with the guide grooves, the contacting action of the anti-tipping block ensures that the positioning pin remains vertical, thus guaranteeing the positioning accuracy of the moving and fixed molds. Simultaneously, during injection molding, the anti-tipping block can also withstand a certain lateral force, preventing the positioning pin from shifting due to injection pressure, further improving the positioning stability of the mold.

[0011] Simultaneously, a positioning block is installed within the cavity, adapting to a positioning groove. When the moving and fixed molds close, the positioning block precisely embeds into the positioning groove. This fit further enhances the vertical positioning accuracy of the mold, making the relative position between the moving and fixed molds more stable. The fit between the positioning block and the positioning groove is like a mortise and tenon joint, tight and stable, effectively preventing minor vertical displacements between the moving and fixed molds during injection molding. Under injection pressure, the positioning block and positioning groove support each other, ensuring the shape and dimensional accuracy of the cavity, thereby improving the quality of the injection molded product. Moreover, the design of the positioning block and positioning groove can be customized according to different injection molding requirements to adapt to various complex mold structures and product shapes.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-precision positioning injection mold;

[0015] Figure 2 This is an exploded view of the fixed mold in this utility model;

[0016] Figure 3 This is an exploded view of the moving model in this utility model;

[0017] Figure 4 This is an exploded view of the anti-tipping block in this utility model.

[0018] The components represented by each number in the attached diagram are listed below: 1. Base plate; 10. Mold corner; 101. Needle plate; 102. Moving mold; 2. Fixed mold; 20. Runner plate; 201. Panel; 202. Cavity; 203. Mounting groove; 204. Fixing groove one; 205. Positioning pin; 206. Concave plate; 21. Positioning block; 210. Reference block; 1020. Guide groove; 1021. Slot; 1022. Fixing groove two; 1023. Protruding plate; 11. Anti-tipping block; 110. Bolt; 12. Locking block; 120. Threaded groove; 13. Positioning groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0022] Please see Figures 1-4 As shown, this utility model is a high-precision positioning injection mold, including a base plate 1. Mold corners 10 are symmetrically arranged on the upper surface of the base plate 1. A pin plate 101 is arranged on the upper surface of the base plate 1. A moving mold 102 is arranged on the upper surface of the pin plate 101. A fixed mold 2 is arranged on the upper surface of the moving mold 102. A runner plate 20 is arranged on the upper surface of the fixed mold 2. A panel 201 is arranged on the upper surface of the runner plate 20. A cavity 202 is formed inside the fixed mold 2. An installation groove 203 and a fixing groove 204 are respectively formed on one side of the fixed mold 2. A positioning pin 205 is arranged in the installation groove 203, and a concave plate 206 is arranged in the fixing groove 204. A positioning block 21 is provided inside the cavity 202. A reference block 210 is provided on the upper surface of the positioning block 21. A guide groove 1020 and a fixing groove 1022 are respectively opened on one side of the moving mold 102. A slot 1021 is opened on both opposite surfaces of the inner wall of the guide groove 1020. An anti-tipping block 11 is provided in the slot 1021. Two sets of bolts 110 are symmetrically inserted on one side of the anti-tipping block 11. A locking block 12 is provided at one end of the bolt 110. A threaded groove 120 is opened on one side of the locking block 12. A positioning groove 13 is opened on the upper surface of the moving mold 102. A protruding plate 1023 is provided in the fixing groove 1022.

[0023] Furthermore, four sets of mounting grooves 203 and fixing groove 1 204 are provided, and the four sets of mounting grooves 203 and fixing groove 1 204 are respectively provided on the four surfaces of the fixed mold 2. Four sets of guide grooves 1020 and fixing groove 2 1022 are provided, and the four sets of guide grooves 1020 and fixing groove 2 1022 are respectively provided on the four surfaces of the moving mold 102.

[0024] Furthermore, the shape and size of the positioning post 205 are adapted to the guide groove 1020, and the shape and size of the convex plate 1023 are adapted to the concave plate 206. The positioning post 205 is engaged with the guide groove 1020, and the convex plate 1023 is engaged with the concave plate 206.

[0025] Furthermore, the anti-tipping block 11 is threadedly engaged with two sets of bolts 110, one end of each set of bolts 110 is set in the threaded groove 120, and one end of each set of bolts 110 is threadedly engaged with the threaded groove 120. The anti-tipping block 11 is made of special steel, and one side of the anti-tipping block 11 is attached to one side of the positioning post 205. The shape and size of the positioning block 21 are adapted to the positioning groove 13. The positioning block 21 is a wedge-shaped plate structure, and the positioning block 21 is snapped into the positioning groove 13.

[0026] It should be noted that this utility model utilizes positioning posts 205 and concave plates 206 on the four surfaces of the fixed mold 2. The positioning posts 205 engage with the guide groove 1020 to achieve initial positioning. Simultaneously, the concave plate 206 and the convex plate 1023 are compatible, with the convex plate 1023 embedded in the concave plate 206, further improving the positioning accuracy. During the process of the positioning posts 205 engaging with the guide groove 1020 and the convex plate 1023 embedding into the concave plate 206, the two cooperate to effectively limit the horizontal displacement deviation between the moving mold 102 and the fixed mold 2. Moreover, this dual positioning structure allows the moving mold 102 and the fixed mold 2 to align quickly and accurately during mold closing, reducing the problem of prolonged mold closing time caused by inaccurate positioning. Since the surface of the anti-tipping block 11 is in contact with one side of the positioning post 205, this further enhances the stability of the positioning post 205, preventing it from tilting or shaking during the positioning process. After the positioning pin 205 is engaged in the guide groove 1020, the fitting action of the anti-tipping block 11 ensures that the positioning pin 205 always remains vertical, thereby guaranteeing the positioning accuracy of the moving mold 102 and the fixed mold 2. At the same time, during the injection molding process, the anti-tipping block 11 can also withstand a certain lateral force, preventing the positioning pin 205 from shifting due to injection pressure, further improving the positioning stability of the mold.

[0027] Simultaneously, a positioning block 21 is provided within the cavity 202. The positioning block 21 adapts to the positioning groove 13, allowing it to precisely embed into the positioning groove 13 when the moving mold 102 and the fixed mold 2 are closed. This fit further enhances the vertical positioning accuracy of the mold, making the relative position between the moving mold 102 and the fixed mold 2 more stable. The fit between the positioning block 21 and the positioning groove 13 is like a mortise and tenon joint, tight and stable, effectively preventing minor vertical displacements between the moving mold 102 and the fixed mold 2 during injection molding. Under the injection pressure, the positioning block 21 and the positioning groove 13 support each other, ensuring the shape and dimensional accuracy of the cavity 202, thereby improving the quality of the injection molded product. Moreover, the design of the positioning block 21 and the positioning groove 13 can be customized according to different injection molding requirements to adapt to various complex mold structures and product shapes.

[0028] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" 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, 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.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-precision positioning injection mold comprising a base plate (1), characterized in that: The base plate (1) has symmetrically arranged mold corners (10) on its upper surface. The base plate (1) has a pin plate (101) on its upper surface. The pin plate (101) has a moving mold (102) on its upper surface. The moving mold (102) has a fixed mold (2) on its upper surface. The fixed mold (2) has a runner plate (20) on its upper surface. The runner plate (20) has a panel (201) on its upper surface. The fixed mold (2) has a cavity (202) inside. The fixed mold (2) has an installation groove (203) and a fixing groove (204) on one side. The installation groove (203) has a positioning pin (205) inside. The fixing groove (204) has a concave plate (206) inside. The cavity (202) has a... There is a positioning block (21), and a reference block (210) is provided on the upper surface of the positioning block (21). A guide groove (1020) and a fixing groove (1022) are respectively opened on one side of the moving mold (102). A slot (1021) is opened on both opposite surfaces of the inner wall of the guide groove (1020). An anti-tipping block (11) is provided in the slot (1021). Two sets of bolts (110) are symmetrically inserted on one side of the anti-tipping block (11). A locking block (12) is provided at one end of the bolt (110). A threaded groove (120) is opened on one side of the locking block (12). A positioning groove (13) is opened on the upper surface of the moving mold (102). A protruding plate (1023) is provided in the fixing groove (1022).

2. A high-precision positioning injection mold according to claim 1, characterized in that, The mounting groove (203) and the fixing groove (204) are each provided with four sets, and the four sets of mounting groove (203) and fixing groove (204) are respectively provided on the four surfaces of the fixed mold (2).

3. A high precision positioning injection mold according to claim 1, characterized in that, The guide groove (1020) and the second fixed groove (1022) are each provided with four sets, and the four sets of guide grooves (1020) and the second fixed groove (1022) are respectively provided on the four surfaces of the moving mold (102).

4. A high precision positioning injection mold according to claim 1, wherein The positioning post (205) is adapted to the shape and size of the guide groove (1020), the convex plate (1023) is adapted to the shape and size of the concave plate (206), the positioning post (205) is engaged with the guide groove (1020), and the convex plate (1023) is engaged with the concave plate (206).

5. A high precision positioning injection mold according to claim 1, wherein The anti-tipping block (11) is threadedly engaged with two sets of bolts (110). One end of each set of bolts (110) is set in the thread groove (120). One end of each set of bolts (110) is threadedly engaged with the thread groove (120). The anti-tipping block (11) is made of special steel. One side of the anti-tipping block (11) is attached to one side of the positioning post (205).

6. The high-precision positioning injection mold according to claim 1, characterized in that, The positioning block (21) is adapted to the positioning groove (13) in shape and size. The positioning block (21) is a wedge-shaped plate structure and is engaged with the positioning groove (13).

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