Terminal female mold closes the mechanism of preventing the slanting top and mold

Abstract

The utility model discloses a kind of inclined top mechanism and mould of terminal female die combined die anti-insertion injury, terminal female die combined die anti-insertion injury inclined top mechanism includes female die core, its inside is equipped with the inclined cavity with the preset included angle of axis and mould combined die direction;Inclined pin fixed plate, combined die end surface of female die core is oppositely arranged, and have linear freedom along combined die direction;Vector inclined pin, slidingly is arranged in inclined cavity, one end is towards terminal setting, the other end is movably connected with inclined pin fixed plate;Floating elastic member, with inclined pin fixed plate contact, floating elastic member provides the elastic force that makes vector inclined pin have extension tendency;Reset rod, one end is fixed with inclined pin fixed plate, reset rod length direction is parallel with female die core combined die direction. Adopt the utility model by first rough then two section positioning, avoid combined die hard collision, prevent terminal insertion injury.

Description

Technical Field

[0001] This utility model relates to the field of injection molds, specifically to a slanted ejector mechanism and mold for preventing insertion damage during terminal female mold closing. Background Technology

[0002] Currently, in the field of terminal embedding injection molding, the molding and bonding of terminals and plastic are achieved through mold closing. The accuracy of mold closing directly affects the quality of terminal products. Existing molds are prone to terminal insertion damage during the mold closing process due to insufficient terminal positioning or mold movement coordination, leading to surface damage, functional failure, or product scrap. These problems not only reduce production yield but also increase rework costs and material waste, adversely affecting the efficiency and economy of terminal injection molding. Therefore, it is necessary to optimize the mold structure to improve the problem of insertion damage during mold closing. Utility Model Content

[0003] The problem to be solved by this utility model is to provide a slanted ejector mechanism and mold for preventing insertion damage when closing the terminal female mold.

[0004] To solve the above problems, on the one hand, this utility model provides a slanted ejector mechanism for preventing damage during terminal mold closing. To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problems is as follows: A tilting ejector mechanism for preventing insertion damage during terminal mold closing includes: a female mold core with an inclined cavity whose axis forms a preset angle with the mold closing direction; a tilting pin fixing plate, disposed opposite to the closing end face of the female mold core and having linear freedom along the closing direction; a vector tilting pin, slidably inserted into the inclined cavity, with one end facing the embedded terminal and the other end movably connected to the tilting pin fixing plate; a floating elastic element, in contact with the tilting pin fixing plate, providing an elastic force to the vector tilting pin to cause it to extend; and a reset rod, one end fixed to the tilting pin fixing plate, the length direction of the reset rod being parallel to the mold closing direction of the female mold core; wherein, before mold closing, the vector tilting pin extends under the action of the floating elastic element, and its end forms a coarse positioning gap with the embedded terminal; during mold closing, the reset rod drives the tilting pin fixing plate to move, compressing the floating elastic element and pushing the vector tilting pin back, so that its end fits against the positioning surface of the embedded terminal to achieve fine positioning.

[0005] As a further improvement of this utility model, the end of the reset rod near the inclined pin fixing plate is provided with an enlarged head, and the inclined pin fixing plate is provided with a blind hole adapted to the floating elastic element; one end of the floating elastic element is in contact with the bottom surface of the blind hole.

[0006] As a further improvement of this utility model, the vector oblique pin has a positioning part at one end facing the embedded terminal, and the shape of the positioning part is complementary to the positioning surface structure of the embedded terminal.

[0007] As a further improvement of this utility model, the positioning part is a recessed corner pit for fitting into the surface of the embedded terminal, and a protruding ridge is formed on one side edge of the recessed corner pit.

[0008] As a further improvement of this utility model, the angle between the axis of the inclined cavity and the mold closing direction is 3° to 5°.

[0009] As a further improvement of this utility model, the number of reset rods is at least two, and they are symmetrically distributed on both sides of the inclined pin fixing plate.

[0010] As a further improvement of this utility model, the inclined pin fixing plate is connected to one end of the vector inclined pin by screws.

[0011] As a further improvement of this utility model, the size of the coarse positioning gap is 0.2mm to 0.5mm.

[0012] As a further improvement of this utility model, the surface of the positioning part is provided with a nitrided wear-resistant coating.

[0013] On the other hand, a mold includes a slanted ejector mechanism for preventing insertion damage during terminal female mold closing, as described above.

[0014] The beneficial technical effects of the inclined ejector mechanism for preventing insertion damage during terminal mold closing as described in this application are: By constructing a two-stage positioning mechanism of first coarse positioning and then fine positioning, the coarse positioning gap is used to accommodate the terminal size deviation, and the vector inclined pin smoothly fits the positioning surface during mold closing. This structurally avoids hard collision between the terminal and the mold during the mold closing process, and completely solves the problem of terminal insertion damage.

[0015] The vector slant pin slides and adapts to the slant cavity, and together with the reset rod, drives the slant pin fixing plate to move precisely along the mold closing direction. This ensures consistent positioning actions, improves terminal positioning accuracy, and provides reliable assurance for product molding quality.

[0016] Finally, relying on the elastic support of the floating elastic element and the linkage drive of the reset rod, the mechanism's movement is smooth and controllable, which can adapt to terminals with a certain range of dimensional deviations, enhances the compatibility and stability of the mold closing process, and improves the production yield. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in 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.

[0018] Figure 1 This is a schematic diagram of one embodiment of the inclined ejector mechanism for preventing insertion damage during terminal mold closing according to this utility model; Figure 2 This is a schematic diagram of one embodiment of the inclined ejector mechanism for preventing insertion damage during terminal mold closing according to this utility model; Figure 3 This is a schematic diagram of one embodiment of the inclined ejector mechanism for preventing insertion damage during terminal mold closing according to this utility model; Figure 4 This is a schematic diagram of one embodiment of the inclined ejector mechanism for preventing insertion damage during terminal mold closing according to this utility model; Figure 5 This is a schematic diagram of one embodiment of the inclined ejector mechanism for preventing insertion damage during terminal mold closing according to this utility model.

[0019] 1-Embedded terminal; 2-Female mold core; 3-Vector oblique pin; 4-Floating elastic element; 5-Screw; 6-Oblique pin fixing plate; 7-Reset rod; 8-Product; 9-Recessed pit; 10-Protruding ridge; 11-Internal corner pit; 12-Oblique cavity; 13-Enlarged head; 14-Blind hole; L1-First spacing; L2-Second spacing; L3-Third spacing; L4-Fourth spacing. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to specific embodiments: To achieve the purpose of this utility model, please refer to Figures 1 to 5 A tilting ejector mechanism and mold for preventing insertion damage during terminal mold closing. The core of the mechanism includes a female mold core 2, a tilting pin fixing plate 6, a vector tilting pin 3, a floating elastic element 4, and a reset rod 7. The female mold core 2 has an inclined cavity 12 whose axis forms a preset angle with the mold closing direction (Z-direction). The tilting pin fixing plate 6 is opposite to the closing end face of the female mold core 2 and can move along the closing direction. The vector tilting pin 3 slides through the inclined cavity 12, with one end facing the embedded terminal 1 and the other end movably connected to the tilting pin fixing plate 6. The floating elastic element 4 provides an elastic force for the extension of the vector tilting pin 3. The reset rod 7 is fixed to the tilting pin fixing plate 6 and extends to the mold closing path.

[0021] like Figure 2 As shown, one end of the embedded terminal 1 is embedded in the product 8, while one end of the vector inclined pin 3 abuts against the outer wall of the embedded product 8.

[0022] Figures 1 to 5 This is a structural diagram. Also, Figure 1 It is a three-dimensional perspective. Figure 2 , Figure 4 This is the main view perspective. Figure 3 , Figure 5It's a side view. And, Figure 2 , Figure 3 , Figure 4 , Figure 5 It is also a sectional view. Figure 2 and Figure 3 Two different perspectives representing the same moment in the operation. Figure 4 and Figure 5 These represent two different perspectives on the same task at the same moment. Figure 2 The outline of the female mold core 2 is indicated by dashed lines, showing the internal components of the female mold core 2.

[0023] The beneficial effects of adopting the above technical solution are as follows: By using the floating design of the vector inclined pin 3 and combining it with the drive of the reset rod 7, a two-stage positioning mechanism of coarse and fine positioning is constructed. This fundamentally avoids hard collisions caused by terminal size deviations, completely eliminates insertion damage during the mold closing process, and lays a structural foundation for high-yield production.

[0024] In some other embodiments of this utility model, the end of the reset rod 7 near the inclined pin fixing plate 6 is provided with a radially protruding enlarged head 13, and the inclined pin fixing plate 6 is provided with a blind hole 14 adapted to the floating elastic member 4. The floating elastic member 4 is placed in the blind hole 14, and one end of it abuts against the bottom surface of the blind hole 14.

[0025] The beneficial effects of adopting the above technical solution are: on the one hand, it achieves a stable and reliable movable connection between the vector inclined pin 3 and the inclined pin fixing plate 6, ensuring the effective transmission of force. On the other hand, it provides a compact accommodating space, making the installation and movement of the floating elastic element 4 more precise and stable, preventing skewness and ensuring the reliability of the mechanism's operation.

[0026] In some other embodiments of this invention, the vector inclined pin 3 has a positioning part at one end facing the embedded terminal 1. The geometry of the positioning part is designed to complement the positioning surface structure of the embedded terminal 1.

[0027] The beneficial effects of adopting the above technical solution are: it can form a good fitting relationship with the surface features of the embedded terminal 1, such as recesses or bosses. This locking greatly enhances the accuracy of positioning and contact stability, prevents the terminal from shifting or loosening during the production process, and ensures the accuracy of the terminal position in the final product.

[0028] In some other embodiments of this utility model, the positioning part may be a recess 11 for fitting into the surface of the embedded terminal 1, with a protruding ridge 10 formed on one side of the recess 11.

[0029] The female mold core 2 has a recessed pit 9 in the inner wall of the inclined cavity 12. The recessed pit 9 allows the convex ridge 10 to move and acts as a guide groove.

[0030] The beneficial effects of adopting the above technical solution are: it enhances the applicability and flexibility of this utility model. Regardless of the positioning features of the terminal surface, this inclined top mechanism can provide a corresponding positioning solution.

[0031] In some other embodiments of this utility model, to ensure motion accuracy, the angle between the axis of the inclined cavity 12 and the mold closing direction is preferably 3° to 5°. Meanwhile, a guide structure is provided between the inclined cavity 12 and the vector inclined pin 3.

[0032] like Figure 1 As shown, a spatial coordinate system XYZ is established, where the X direction is perpendicular to the Y direction, and both the X and Y directions are perpendicular to the Z direction. The axis of the oblique cavity 12, that is, the length direction of the oblique cavity 12, also forms a non-right angle with both the X and Y directions.

[0033] The guiding structure can be a guide groove and a guide ridge, used to restrict the vector inclined pin 3 from rotating around its own axis.

[0034] The beneficial effects of adopting the above technical solution are: limiting the included angle range and setting an anti-rotation guide structure, the appropriate angle ensures the effective stroke of the inclined pin movement decomposed into the mold closing direction, avoiding positioning failure or scratches caused by the rotation of the inclined pin.

[0035] In some other embodiments of this utility model, in terms of the reset assembly, the reset rod 7 is provided with at least two rods, which are symmetrically distributed on both sides of the inclined pin fixing plate 6.

[0036] The beneficial effects of adopting the above technical solution are: it enables the mold closing pressure to be evenly transmitted to the inclined pin fixing plate 6, preventing it from tilting or jamming due to unilateral force. It ensures that the inclined pin fixing plate 6 and the vector inclined pin 3 connected to it can move smoothly, improving the smoothness of the entire mechanism's movement.

[0037] In some other embodiments of this utility model, the inclined pin fixing plate 6 is connected to one end of the vector inclined pin 3 by screws 5.

[0038] The advantages of adopting the above technical solution are: this design is simple and effective, achieves the function, and reduces manufacturing and maintenance costs.

[0039] In some other embodiments of this utility model, the coarse positioning gap between the vector inclined pin 3 and the embedded terminal 1 is 0.2 mm to 0.5 mm. The fitting gap between the vector inclined pin 3 and the inner wall of the inclined cavity 12 is 0.01 mm to 0.03 mm.

[0040] like Figure 2 and Figure 3 As shown, the first spacing L1 is 0.2mm to 0.5mm, as... Figure 2 As shown, the second spacing L2 is 0.0 mm, as... Figure 4 and Figure 5 As shown, the third spacing L3 is 0.0 mm, as... Figure 4 As shown, the fourth spacing L4 is 7.5mm.

[0041] The beneficial effects of adopting the above technical solution are as follows: a coarse positioning gap of 0.2mm to 0.5mm is sufficient to accommodate the manufacturing tolerances and bending deviations of the terminals, which is a prerequisite for preventing insertion damage. Meanwhile, a precision sliding gap of 0.01mm to 0.03mm ensures that the vector inclined pin 3 moves smoothly and without any wobbling, achieving a balance between looseness and tightness.

[0042] In some other embodiments of this invention, the positioning part of the vector inclined pin 3 is provided with a nitrided wear-resistant coating. The coating thickness is preferably 0.02 mm to 0.05 mm, and the surface roughness Ra is not greater than 0.8 μm.

[0043] The beneficial effects of adopting the above technical solution are: it can improve the surface hardness and wear resistance of the positioning part, making it less prone to wear during repeated contact with the terminal, thus extending the service life of the mold. At the same time, the smooth surface with low roughness can minimize the risk of scratching the plating on the terminal surface, providing double protection.

[0044] This application also includes a mold comprising a male mold core, a female mold core 2, and the inclined ejector mechanism described in any of the preceding claims. The male mold core and the female mold core 2 form a molding cavity, in which a terminal 1 is embedded with its positioning surface facing the vector inclined pin 3.

[0045] The beneficial effects of adopting the above technical solution are: it forms a complete high-quality embedded injection molding production solution. This mold can stably produce plastic products with no insertion damage and precise terminal positioning, improving production yield and product quality, and reducing rework costs and material waste caused by defective products.

[0046] The mold is an embedded injection mold, which adds a terminal clamping and insertion mechanism, namely the female mold vector inclined ejector floating mechanism. The vector inclined ejector floats first coarsely positions the terminal, and when the female mold closes, the gap between the inclined ejector and the terminal decreases. After the female mold closes, the inclined ejector returns to its original position, realizing the precise positioning of the terminal.

[0047] The operation steps of the inclined ejector mechanism for preventing insertion damage during terminal mold closing in this application are as follows: Step 1: The vector inclined ejector floats and roughly positions the female mold, with a gap of 0.2mm to 0.5mm. Step 2: After the female mold closes and the vector inclined ejector returns to its precise position, the gap is 0mm, and injection molding is performed.

[0048] The advantages of the inclined ejector mechanism for preventing insertion damage during terminal mold closing in this application are that the processed products are free of surface insertion damage, production is stable, the product surface is cleaner, and the quality is guaranteed.

[0049] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A slanted ejector mechanism for preventing insertion damage during terminal mold closing, characterized in that, include: The female mold core has an inclined cavity inside that forms a preset angle with the mold closing direction; A slanted pin fixing plate is provided on the mold closing end face of the female mold core and has a linear degree of freedom along the mold closing direction; The vector inclined pin is slidably inserted into the inclined cavity, with one end facing the embedded terminal and the other end movably connected to the inclined pin fixing plate. A floating elastic element contacts the inclined pin fixing plate, and the floating elastic element provides an elastic force to the vector inclined pin, causing it to extend. The reset rod is fixed at one end to the inclined pin fixing plate, and the length direction of the reset rod is parallel to the mold closing direction of the female mold core. Before mold closing, the vector inclined pin extends under the action of the floating elastic element, and its end forms a coarse positioning gap with the embedded terminal; when the mold closes, the reset rod drives the inclined pin fixing plate to move, compresses the floating elastic element and pushes the vector inclined pin back, so that its end fits with the positioning surface of the embedded terminal to achieve fine positioning.

2. The inclined ejector mechanism for preventing insertion damage during terminal mold closing as described in claim 1, characterized in that: The reset rod has an enlarged head at one end near the inclined pin fixing plate, and the inclined pin fixing plate has a blind hole adapted to the floating elastic element; one end of the floating elastic element contacts the bottom surface of the blind hole.

3. The inclined ejector mechanism for preventing insertion damage during terminal mold closing as described in claim 1, characterized in that: The vector oblique pin has a positioning part at one end facing the embedded terminal, and the shape of the positioning part is complementary to the positioning surface structure of the embedded terminal.

4. The inclined ejector mechanism for preventing insertion damage during terminal mold closing as described in claim 3, characterized in that: The positioning part is a recessed corner for fitting into the surface of the embedded terminal, and a protruding ridge is formed on one side edge of the recessed corner.

5. The inclined ejector mechanism for preventing insertion damage during terminal mold closing according to claim 1, characterized in that: The angle between the axis of the inclined cavity and the mold closing direction is 3° to 5°.

6. The inclined ejector mechanism for preventing insertion damage during terminal mold closing as described in claim 1, characterized in that: The number of reset rods is at least two, and they are symmetrically distributed on both sides of the inclined pin fixing plate.

7. The inclined ejector mechanism for preventing insertion damage during terminal mold closing according to claim 1, characterized in that: The inclined pin fixing plate is connected to one end of the vector inclined pin by screws.

8. The inclined ejector mechanism for preventing insertion damage during terminal mold closing as described in claim 1, characterized in that: The size of the coarse positioning gap is 0.2 mm to 0.5 mm.

9. The inclined ejector mechanism for preventing insertion damage during terminal mold closing according to claim 3, characterized in that: The surface of the positioning part is provided with a nitrided wear-resistant coating.

10. A mold, characterized in that: Includes the inclined ejector mechanism for preventing insertion damage during terminal mold closing as described in any one of claims 1 to 9.

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