A molding die having a magnet structure

Abstract

The utility model relates to mould technical field, specifically disclose a forming die with magnet structure. Wherein, from top to bottom are set up in proper order upper die plate, upper die, lower die, lower die plate and ejector assembly, side forming assembly is set up in lower die and is used for shaping product outside portion, fixed component, including the lower beryllium copper fixed part of bottom with the ejector assembly connection and the upper beryllium copper fixed part of setting on upper die, side forming assembly with upper beryllium copper fixed part and lower beryllium copper fixed part combination forms forming cavity, lower beryllium copper fixed part has the fixed structure for fixing magnet structure, when closing mould, upper beryllium copper fixed part can be pressed in fixed structure in magnet structure inwards downwards. The utility model adopts non -magnetic beryllium copper fixed part to fix magnet structure, realizes integrated moulding while firmness good stability height, promotes production efficiency and finished product quality.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a molding mold with a magnet structure. Background Technology

[0002] The mold industry is a crucial link in modern manufacturing, widely used in automobiles, electronics, toys, and other fields to produce parts of various shapes and sizes. Existing products, due to the magnetism of their magnetic structure, are attracted to the iron and steel inside the mold, causing misalignment during placement. This misalignment not only increases the defect rate but also severely affects molding quality. Currently, the magnetic structure needs to be manually inserted after molding and fixed with adhesive, a labor-intensive process that is inefficient and unsuitable for large-scale production. 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 molding die with a magnetic structure, using non-magnetic beryllium copper fixing parts to fix the magnetic structure, achieving one-piece molding while maintaining good sturdiness and high stability, thus improving production efficiency and finished product quality.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A molding die with a magnet structure, comprising:

[0006] The components set from top to bottom are: upper template, upper mold core, lower mold core, lower template, and ejector assembly.

[0007] A side forming assembly is disposed on the lower mold core and used to form the outer part of the product;

[0008] The fixing component includes a lower beryllium copper fixing member connected to the bottom of the ejection component and an upper beryllium copper fixing member disposed on the upper mold core. The side forming component, the upper beryllium copper fixing member, and the lower beryllium copper fixing member are combined to form a forming cavity. The lower beryllium copper fixing member has a fixing structure for fixing the magnet structure. When the mold is closed, the upper beryllium copper fixing member can press the magnet structure downward into the fixing structure.

[0009] According to some embodiments of the present invention, the fixing structure includes a positioning groove that matches the shape of the magnet structure and is provided on the top of the lower beryllium copper fixing member. The positioning groove has first limiting protrusions on both sides and a first limiting groove that matches the first limiting protrusions on the magnet structure.

[0010] According to some embodiments of the present invention, the fixing structure further includes a plurality of claw forming grooves disposed on the top surface of the lower beryllium copper fixing member, one end of the claw forming groove extending into the positioning groove, and the bottom surface height of the claw forming groove being lower than the bottom surface height of the positioning groove.

[0011] According to some embodiments of the present invention, the ejection assembly includes a top plate structure that can be lifted by the ejector roller of the injection molding equipment and a rubber plug disposed on the top of the top plate structure, and the bottom of the lower beryllium copper fixing member is fixed on the top plate structure.

[0012] According to some embodiments of the present invention, the upper beryllium copper fixing part includes a fixing part, a first molding block disposed below the fixing part, and a second molding block disposed below the first molding block. The first molding block is used to form the upper surface structure of the product, and the second molding block is used to form the internal structure of the product. When the mold is closed, the bottom of the second molding block abuts against the top of the magnet structure.

[0013] According to some embodiments of the present invention, the second forming block is in the shape of a frustum.

[0014] According to some embodiments of the present invention, the first molding block is a cone shape that gradually tapers inward from top to bottom, and the top of the lower beryllium copper fixing member is a cone shape that gradually tapers inward from bottom to top.

[0015] According to some embodiments of the present invention, the side forming assembly includes a first core-pulling block and a second core-pulling block disposed opposite to each other, a first slide block connected to the first core-pulling block, a second slide block connected to the second core-pulling block, a first driving structure disposed on the first slide block, and a second driving structure disposed on the second slide block. The first core-pulling block and the second core-pulling block both abut against the outer side walls of the upper beryllium copper fixing member and the lower beryllium copper fixing member.

[0016] According to some embodiments of the present invention, the first core-pulling block is provided with a plurality of second limiting protrusions that are staggered vertically on the side near the second core-pulling block, and the second core-pulling block is provided with a plurality of second limiting grooves that cooperate with the second limiting protrusions on the side near the first core-pulling block.

[0017] This utility model has at least the following beneficial effects:

[0018] The side-forming components precisely shape the outer side of the product, ensuring appearance and dimensional accuracy. The fixing components use non-magnetic beryllium copper material to prevent the magnet from shifting due to magnetic interference, ensuring forming accuracy. The upper beryllium copper fixing component clamps the magnet structure to the lower beryllium copper fixing component, enhancing the bonding strength and achieving one-piece molding of the product and magnet, improving production efficiency and product quality. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of one embodiment of the present utility model;

[0020] Figure 2 This is an enlarged view of the marked area in Figure A, which represents an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the lower beryllium copper fixing component according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the lower beryllium copper fixing member and magnet according to one embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the upper beryllium copper fixing component according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the first molding block and the second molding block according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the molded product structure according to one embodiment of the present utility model. Detailed Implementation

[0026] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0027] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation 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.

[0028] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intermediary element (e.g., the third element) between the element and the other element.

[0029] An embodiment of this utility model provides a molding die with a magnet structure, such as Figure 1-7 As shown, it includes:

[0030] The components arranged from top to bottom are: upper template 11, upper mold core 12, lower mold core 13, lower template 14, and ejector assembly 15.

[0031] Side forming component 2 is disposed on the lower mold core 13 and used to form the outer part of the product;

[0032] The fixing component includes a lower beryllium copper fixing member 31 connected to the bottom of the ejector component 15 and an upper beryllium copper fixing member 32 disposed on the upper mold core 12. The side forming component 2, the upper beryllium copper fixing member 32 and the lower beryllium copper fixing member 31 are combined to form a forming cavity. The lower beryllium copper fixing member 31 has a fixing structure 33 for fixing the magnet structure 3. When the mold is closed, the upper beryllium copper fixing member 32 can press the magnet structure 3 down into the fixing structure 33.

[0033] The side forming component 2 precisely forms the outer part of the product, ensuring its appearance quality and dimensional accuracy. The lower beryllium copper fixing component 31 is connected to the ejector component 15, and the upper beryllium copper fixing component 32 is embedded in the upper mold core 12. The side forming component 2 abuts against the upper beryllium copper fixing component 32 and the lower beryllium copper fixing component 31, and the combination of these structures forms a complete forming cavity. The lower beryllium copper fixing component 31 is connected to the ejector component 15, serving not only a fixing function but also an ejection function, further simplifying the mold structure. The fixing component uses non-magnetic beryllium copper as its main material, ensuring that the magnet structure 3 is not subject to magnetic interference during the forming process. The upper beryllium copper fixing component 32 and the lower beryllium copper fixing component 31 securely fix the magnet structure 3 within the fixing structure 33 by clamping, ensuring that the magnet structure 3 is not affected by the magnetism of other structures in the mold during mold closing, thus preventing positioning displacement and affecting forming quality. The fixing structure 33 is used to improve the fixing stability of the magnet structure 3, realizing the integral molding of the product and the magnet structure 3, and significantly enhancing the bonding strength between the two. During mold closing, the upper beryllium copper fixing part 32 presses down vertically, firmly locking the magnet structure 3 within the fixing structure 33 of the lower beryllium copper fixing part 31. This rigid clamping ensures that the magnet structure 3 remains stationary under the high pressure of injection molding, realizing the integral encapsulation molding of the plastic melt and the magnet structure 3, significantly improving the bonding strength and product reliability. In addition, beryllium copper material has a high thermal conductivity and excellent heat dissipation performance, allowing the mold to quickly balance heat without the need for an additional complex water channel system, simplifying the mold structure and maintenance difficulty, avoiding the risk of water channel leakage, and improving production efficiency and product yield.

[0034] In some embodiments, such as Figure 3-4 As shown, the fixing structure 33 includes a positioning groove 34 that matches the shape of the magnet structure 3 and is provided on the top of the lower beryllium copper fixing member 31. The positioning groove 34 has first limiting protrusions 35 on both sides, and the magnet structure 3 has a corresponding first limiting groove 36 that matches the first limiting protrusions 35.

[0035] A positioning groove 34, matching the shape of the magnet structure 3, is provided on the top of the lower beryllium copper fixing component 31. This allows for precise positioning of the magnet structure 3, ensuring its stability during the molding process. First limiting protrusions 35 are provided on both sides of the positioning groove 34, and corresponding first limiting grooves 36 are provided on the magnet structure 3. This further enhances the fixing effect of the magnet structure 3, restricts its rotation, and prevents it from shifting due to external forces or vibrations during injection molding. This design not only improves the fixing stability of the magnet structure 3 but also ensures molding accuracy and product quality.

[0036] Furthermore, such as Figure 2-3 As shown, the fixing structure 33 also includes a plurality of claw forming grooves 37 disposed on the top surface of the lower beryllium copper fixing member 31. One end of the claw forming groove 37 extends into the positioning groove 34, and the bottom surface height of the claw forming groove 37 is lower than the bottom surface height of the positioning groove 34.

[0037] During the molding process, the molten plastic can flow into the jaw forming groove 37, and after cooling, form a shape like... Figure 7 The claw structure 4 further enhances the mechanical connection strength between the magnet structure 3 and the molded product. Because the claw forming groove 37 is lower than the bottom surface of the positioning groove 34, the formed claw structure can more tightly wrap around the magnet structure 3, preventing it from loosening or falling off during subsequent use, significantly improving the overall robustness and reliability of the product. This structure eliminates the need for additional fixing parts 38 or complex assembly processes, simplifying the production process, reducing production costs, and improving production efficiency.

[0038] In some embodiments, such as Figure 1 As shown, the ejector assembly 15 includes a top plate structure 151 that can be lifted by the ejector roller of the injection molding equipment and a rubber plug disposed on the top of the top plate structure 151, and the bottom of the lower beryllium copper fixing member 31 is fixed on the top plate structure 151.

[0039] The ejector assembly 15 can seamlessly cooperate with the ejector roller of the injection molding equipment to achieve efficient ejection of the product and ensure smooth demolding of the molded product. The rubber plug can effectively prevent collisions of the ejector assembly 15 during the ejection process, limit the ejection stroke of the ejector assembly 15, and protect the ejection system. The fixed connection between the lower beryllium copper fixing part 31 and the top plate structure 151 allows the magnet structure 3 to be ejected by the top plate structure 151, realizing the lifting of the product and facilitating the gripping of the robot arm.

[0040] In some embodiments, such as Figure 2 , 5As shown, the upper beryllium copper fixing part 32 includes a fixing part 38, a first molding block 39 disposed below the fixing part 38, and a second molding block 310 disposed below the first molding block 39. The first molding block 39 is used to mold the upper surface structure of the product, and the second molding block 310 is used to mold the internal structure of the product. When the mold is closed, the bottom of the second molding block 310 abuts against the top of the magnet structure 3.

[0041] The fixing part 38 of the upper beryllium copper fixing part 32 is used to abut and fix it to the upper mold core 12, ensuring that it can move upward with the upper mold core 12 when the mold opens. The first molding block 39 located below the fixing part 38 and the second molding block 310 located below the first molding block 39 facilitate the upper beryllium copper fixing part 32 to fix the magnet structure 3 while also performing the molding function. This layered structure design allows the mold to simultaneously meet the molding requirements of the upper surface structure and the internal structure of the product. When the mold is closed, the bottom of the second molding block 310 abuts against the top of the magnet structure 3, ensuring that the magnet structure 3 is accurately fixed during the molding process without affecting the molding, preventing the magnet structure 3 from shifting due to injection pressure, thereby ensuring the integral molding accuracy of the magnet and the product.

[0042] Furthermore, such as Figure 5 As shown, the second forming block 310 is in the shape of a frustum.

[0043] The truncated cone shape allows for easy core extraction without damaging the product.

[0044] Furthermore, such as Figure 3 , 5 As shown, the first molding block 39 is a cone shape that gradually tapers inward from top to bottom, and the top of the lower beryllium copper fixing member 31 is a cone shape that gradually tapers inward from bottom to top.

[0045] The tapered design facilitates upward or downward demolding, avoiding product damage caused by uneven demolding force, and significantly improving molding quality and production efficiency.

[0046] In some embodiments, such as Figure 1 , 6 As shown, the side forming assembly 2 includes a first core-pulling block 21 and a second core-pulling block 22 disposed opposite to each other, a first slide block 23 connected to the first core-pulling block 21, a second slide block 24 connected to the second core-pulling block 22, a first driving structure 25 disposed on the first slide block 23, and a second driving structure 26 disposed on the second slide block 24. The first core-pulling block 21 and the second core-pulling block 22 both abut against the outer side walls of the upper beryllium copper fixing member 32 and the lower beryllium copper fixing member 31.

[0047] The first core-pulling block 21 and the second core-pulling block 22 abut against the outer walls of the upper beryllium copper fixing member 32 and the lower beryllium copper fixing member 31, respectively, ensuring a tight fit with the mold cavity during the molding process and achieving precise molding of complex outer structures. Simultaneously, the first driving structure 25 and the second driving structure 26 drive the first slide block 23 and the second slide block 24, respectively, to achieve precise core-pulling action of the core-pulling blocks, ensuring smooth product demolding and avoiding product damage due to poor core-pulling. Specifically, both the first driving structure 25 and the second driving structure 26 are inclined guide post driving structures connected to the upper mold core 12 or the upper mold plate 11, enabling synchronous lateral core-pulling using the mold opening force, further reducing costs.

[0048] Furthermore, such as Figure 6 As shown, the first core-pulling block 21 has multiple second limiting protrusions 27 that are staggered vertically on the side near the second core-pulling block 22, and the second core-pulling block 22 has multiple second limiting grooves 28 that cooperate with the second limiting protrusions 27 on the side near the first core-pulling block 21.

[0049] The cooperation of the second limiting protrusion 27 and the second limiting groove 28 ensures the precise alignment of the first core-pulling block 21 and the second core-pulling block 22 during mold closing, avoiding molding defects caused by misalignment between the core-pulling blocks. At the same time, the staggered design increases the stability of the structure and prevents the core-pulling blocks from shifting due to pressure during injection molding, thereby ensuring the molding accuracy and consistency of the outer side of the product.

[0050] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A molding die with a magnet structure, characterized in that, include: The upper template (11), upper mold core (12), lower mold core (13), lower template (14), and ejector assembly (15) are arranged sequentially from top to bottom. Side forming component (2) is disposed on the lower mold core (13) and used to form the outer part of the product; The fixing component includes a lower beryllium copper fixing member (31) connected to the bottom of the ejector component (15) and an upper beryllium copper fixing member (32) disposed on the upper mold core (12). The side forming component (2), the upper beryllium copper fixing member (32) and the lower beryllium copper fixing member (31) are combined to form a forming cavity. The lower beryllium copper fixing member (31) has a fixing structure (33) for fixing the magnet structure (3). When the mold is closed, the upper beryllium copper fixing member (32) can press the magnet structure (3) down into the fixing structure (33).

2. A molding die with a magnet structure according to claim 1, characterized in that: The fixing structure (33) includes a positioning groove (34) that matches the shape of the magnet structure (3) and is provided on the top of the lower beryllium copper fixing member (31). The positioning groove (34) has first limiting protrusions (35) on both sides and a first limiting groove (36) that matches the first limiting protrusions (35) on the magnet structure (3).

3. A molding die with a magnet structure according to claim 2, characterized in that: The fixing structure (33) also includes a plurality of claw forming grooves (37) disposed on the top surface of the lower beryllium copper fixing member (31). One end of the claw forming groove (37) extends into the positioning groove (34), and the bottom surface height of the claw forming groove (37) is lower than the bottom surface height of the positioning groove (34).

4. A molding die with a magnet structure according to claim 1, characterized in that: The ejection assembly (15) includes a top plate structure (151) that can be lifted by the ejector roller of the injection molding equipment and a rubber plug disposed on the top of the top plate structure (151), and the bottom of the lower beryllium copper fixing member (31) is fixed on the top plate structure (151).

5. A molding die with a magnet structure according to claim 1, characterized in that: The upper beryllium copper fixing part (32) includes a fixing part (38), a first molding block (39) disposed below the fixing part (38), and a second molding block (310) disposed below the first molding block (39). The first molding block (39) is used to form the upper surface structure of the product, and the second molding block (310) is used to form the internal structure of the product. When the mold is closed, the bottom of the second molding block (310) abuts against the top of the magnet structure (3).

6. A molding die with a magnet structure according to claim 5, characterized in that: The second molding block (310) is in the shape of a frustum.

7. A molding die with a magnet structure according to claim 5, characterized in that: The first molding block (39) is a cone shape that gradually tapers inward from top to bottom, and the top of the lower beryllium copper fixing member (31) is a cone shape that gradually tapers inward from bottom to top.

8. A molding die with a magnet structure according to claim 7, characterized in that: The side forming assembly (2) includes a first core-pulling block (21) and a second core-pulling block (22) disposed opposite to each other, a first slide block (23) connected to the first core-pulling block (21), a second slide block (24) connected to the second core-pulling block (22), a first drive structure (25) disposed on the first slide block (23), and a second drive structure (26) disposed on the second slide block (24). The first core-pulling block (21) and the second core-pulling block (22) both abut against the outer side walls of the upper beryllium copper fixing member (32) and the lower beryllium copper fixing member (31).

9. A molding die with a magnet structure according to claim 8, characterized in that: The first core-pulling block (21) has multiple second limiting protrusions (27) that are staggered vertically on the side near the second core-pulling block (22), and the second core-pulling block (22) has multiple second limiting grooves (28) that cooperate with the second limiting protrusions (27) on the side near the first core-pulling block (21).

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