Injection mold facilitating demolding of charging coil rubber coating part
By introducing a slider and locking mechanism into the injection mold, the problem of difficult demolding of the charging coil overmolded parts was solved, achieving stable separation and demolding of the connector and improving the reliability of the mold.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CHAORI PRECISION MOULD CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-05-15
AI Technical Summary
The charging coil coated parts are difficult to demold during the injection molding process, especially because the connector is inserted into the limiting block, making demolding difficult.
A locking mechanism is adopted, including a slider, a drive block, a locking block, and an elastic element. The reciprocating sliding of the slider drives the locking mechanism to lock or unlock the limit block, so that the limit block is separated from the wire head and demolding is achieved.
It facilitates the demolding of the charging coil-coated components, avoids deformation of the connector, and improves demolding efficiency and mold stability.
Smart Images
Figure CN224240201U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of injection molding technology, and in particular to an injection mold that facilitates the demolding of a charging coil overmolded component. Background Technology
[0002] Injection molding overmolding is a two-stage molding process primarily used to firmly encapsulate a layer of flexible material onto a rigid substrate, creating a composite product with different properties. It is widely used in electronic components, home furnishings, medical devices, automotive parts, and other fields.
[0003] Currently, referring to Figure 1 The charging coil 16 has a terminal 17 at its end. When the charging coil 16 is injection molded, the terminal 17 of the charging coil 16 needs to be inserted into the limiting groove 18 of the limiting block 4 first, and then the charging coil 16 and the limiting block 4 are placed into the mold core of the fixed mold. During the injection molding process, the limiting block 4 protects the terminal 17 of the charging coil 16, so that the terminal 17 is not easily deformed.
[0004] When the charging coil is fully injection molded, the ejection mechanism ejects the plastic-coated part of the charging coil from the mold core. Because the charging coil's terminals are still inserted into the limiting block at this time, it is difficult to demold the plastic-coated part of the charging coil. Utility Model Content
[0005] To facilitate the demolding of the charging coil coated component, this application provides an injection mold that facilitates the demolding of the charging coil coated component.
[0006] The injection mold provided in this application, which facilitates the demolding of the rubber-coated component of the charging coil, adopts the following technical solution:
[0007] An injection mold for easy demolding of a charging coil overmolded component includes a moving mold and a fixed mold. A mold core is provided in the fixed mold, and a limit block is slidably placed in the mold core. A slider is slidably provided on the fixed mold. A drive block for driving the slider to slide back and forth is provided on the moving mold. A locking mechanism is provided on the slider for locking the limit block.
[0008] By adopting the above technical solution, when the moving mold descends and closes, the moving mold drives the slider to move closer to the limit block through the driving block. The slider drives the locking mechanism to lock the limit block. When the moving mold rises and opens, the moving mold drives the slider to move away from the limit block through the driving block. The slider pulls the limit block to slide through the locking mechanism, so that the limit block is separated from the terminal of the charging coil, thereby facilitating the demolding of the charging coil coating component.
[0009] Preferably, the locking mechanism includes a locking block and an elastic element. The locking block is rotatably mounted on the slider. A locking hook is formed at the end of the locking block. The elastic element is disposed between the locking block and the slider. A pull hook is formed at the end of the limiting block near the slider. The elastic element pushes the locking block to rotate and causes the locking hook to engage with the pull hook.
[0010] By adopting the above technical solution, when the slider moves towards the limit block, the locking hook and the pull hook abut against each other. The pull hook pushes the locking block to rotate through the locking hook, and the locking block squeezes the elastic element. When the locking hook moves past the pull hook, the elastic element pushes the locking block to rotate and reset. The locking block drives the locking hook to rotate and makes the locking hook and the pull hook hook together. When the slider moves away from the limit block, the locking hook pulls the limit block to slide through the pull hook, thereby facilitating the demolding of the charging coil coating component.
[0011] Preferably, there are two locking blocks and two elastic elements symmetrically arranged along the sliding direction of the vertical slider, and two pull hooks are arranged along the sliding direction of the vertical limiting block, with the two locking hooks corresponding to the two pull hooks.
[0012] By adopting the above technical solution, when the slider moves away from the limit block, the two locking hooks pull the limit block to slide through the two pull hooks, thereby making the sliding of the limit block more stable.
[0013] Preferably, the slider has a receiving groove, and the locking block is rotatably disposed in the receiving groove.
[0014] By adopting the above technical solution, the locking block is located in the receiving groove, which reduces the space occupied by the locking mechanism and makes the mold more streamlined.
[0015] Preferably, the slider has a positioning groove that communicates with the receiving groove, one end of the elastic element abuts against the locking block, and the other end is located in the positioning groove.
[0016] By adopting the above technical solution, when the locking block pushes the elastic element to contract and deform, the positioning groove positions the elastic element, thereby making the expansion and contraction deformation of the elastic element more stable.
[0017] Preferably, the bottom of the driving block is inclined away from the limiting block, the slider has a driving hole, the bottom of the driving hole is inclined away from the limiting block, and the driving block is slidably disposed in the driving hole.
[0018] By adopting the above technical solution, when the moving mold descends to close the mold, the moving mold drives the driving block to descend. The driving block slides in the driving hole and drives the slider to move towards the limit block. When the moving mold rises to open the mold, the moving mold drives the driving block to rise. The driving block slides in the driving hole and drives the slider to move away from the limit block.
[0019] Preferably, pressure strips are provided on both sides of the slider inside the fixed mold, the moving mold is T-shaped, and the two pressure strips press down on both sides of the moving mold respectively.
[0020] By adopting the above technical solution, the two pressure strips press down on the slider, making the slider slide more stably on the fixed mold.
[0021] Preferably, an installation block is fixedly provided on the limiting block, a limiting post is fixedly provided on the installation block, and the locking mechanism is used to lock the limiting post.
[0022] By adopting the above technical solution, when the moving mold descends to close, the moving mold drives the slider to move closer to the limit block via the drive block. The slider then drives the locking mechanism to lock the limit post. When the moving mold rises to open, the moving mold drives the slider to move away from the limit block via the drive block. The slider pulls the limit post via the locking mechanism, and the limit post pulls the limit block to slide via the mounting block, thus separating the limit block from the charging coil's terminal block. This facilitates demolding of the charging coil's coated component. With this design, the locking mechanism will not contact the limit block during locking, making it difficult for the limit block to move during the locking process, thereby preventing deformation of the charging coil's terminal block.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. Using a locking mechanism, when the moving mold descends to close, the moving mold drives the slider to move closer to the limit block via the drive block. The slider drives the locking mechanism to lock the limit block. When the moving mold rises to open, the moving mold drives the slider to move away from the limit block via the drive block. The slider pulls the limit block to slide via the locking mechanism, so that the limit block is separated from the terminal of the charging coil, thereby facilitating the demolding of the charging coil coated part.
[0025] 2. With the help of the locking block and the elastic element, when the slider moves towards the limit block, the locking hook and the pull hook abut against each other. The pull hook pushes the locking block to rotate through the locking hook. The locking block squeezes the elastic element. When the locking hook moves past the pull hook, the elastic element pushes the locking block to rotate and reset. The locking block drives the locking hook to rotate and the locking hook and the pull hook form a hook. When the slider moves away from the limit block, the locking hook pulls the limit block to slide through the pull hook, which facilitates the demolding of the charging coil coating part.
[0026] 3. When the moving mold descends to close, the moving mold drives the slider to move closer to the limiting block via the driving block. The slider drives the locking mechanism to lock the limiting block. When the moving mold rises to open, the moving mold drives the slider to move away from the limiting block via the driving block. The slider pulls the limiting block via the locking mechanism. The limiting block pulls the limiting block to slide via the mounting block, so that the limiting block is separated from the terminal of the charging coil. This facilitates demolding of the charging coil coating component. The locking mechanism does not contact the limiting block when locking, so that the limiting block is not easy to move during the locking process, thus preventing deformation of the terminal of the charging coil. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of the limiting block and the charging coil in the background art of this application;
[0028] Figure 2 This is a schematic diagram of the overall structure of the injection mold in Embodiment 1 of this application;
[0029] Figure 3 This is a partial structural diagram of the injection mold in Embodiment 1 of this application;
[0030] Figure 4 For this application Figure 3 Enlarged view of point A in the middle;
[0031] Figure 5 This is an exploded view of a portion of the structure of the injection mold in Embodiment 1 of this application;
[0032] Figure 6 This is a partial structural diagram of the injection mold in Embodiment 2 of this application;
[0033] Figure 7 This is a top view of part of the structure of the injection mold in Embodiment 2 of this application.
[0034] Reference numerals in the attached drawings: 1. Moving mold; 2. Fixed mold; 3. Mold core; 4. Limiting block; 5. Slider; 6. Drive block; 7. Locking mechanism; 71. Locking block; 72. Elastic element; 8. Locking hook; 9. Pull hook; 10. Receiving groove; 11. Positioning groove; 12. Drive hole; 13. Pressure strip; 14. Mounting block; 15. Limiting post; 16. Charging coil; 17. Wiring terminal; 18. Limiting groove. Detailed Implementation
[0035] The following is in conjunction with the appendix Figures 2-7 This application will be described in further detail.
[0036] This application discloses an injection mold that facilitates the demolding of the charging coil coating component.
[0037] Example 1:
[0038] Reference Figure 2 and Figure 3 An injection mold for easy demolding of a charging coil coated component includes a moving mold 1 and a fixed mold 2. A drive block 6 is fixedly installed on the bottom wall of the moving mold 1. A mold core 3 is fixedly installed inside the fixed mold 2, and a limit block 4 and a charging coil are slidably placed inside the mold core 3.
[0039] Reference Figure 4 and Figure 5 A slider 5 is slidably mounted on the fixed mold 2 along the sliding direction of the limiting block 4. The slider 5 has an inverted T-shaped cross-section. Two pressure strips 13 are fixedly mounted on the fixed mold 2. The two pressure strips 13 are located on opposite sides of the slider 5 along the sliding direction perpendicular to the slider 5, and the two pressure strips press down on the slider 5. The pressure strips 13 press down on the slider 5, making the slider 5 slide more stably on the fixed mold 2.
[0040] The slider 5 has a through drive hole 12 extending vertically. The bottom of the drive hole 12 is inclined away from the limit block 4. The bottom of the drive block 6 is also inclined away from the limit block 4. The inclination angle of the drive block 6 is the same as that of the drive hole 12, and the drive block 6 is slidably installed in the drive hole 12.
[0041] During the mold closing stage, the moving mold 1 gradually moves downwards, and the drive block 6 connected to the moving mold 1 also descends synchronously. During this process, the drive block 6 slides along the preset drive hole 12, and the force generated by this sliding will drive the slider 5 to move smoothly towards the limit block 4 until the mold closing action is completed.
[0042] During the mold opening stage, the moving mold 1 begins to move upward, and the driving block 6 also rises upward under the influence of the moving mold 1. The driving block 6 continues to slide within the driving hole 12, and the force generated by its sliding will cause the slider 5 to slowly move away from the limiting block 4 until the mold opening action is completed.
[0043] A locking mechanism 7 is installed on the slider 5. The locking mechanism 7 includes two locking blocks 71 and elastic members 72. Two receiving grooves 10 are symmetrically opened on the top of the slider 5 near the limiting block 4 along the direction perpendicular to its own sliding direction. The two locking blocks 71 are rotatably installed in the two receiving grooves 10. The two elastic members 72 abut against the side walls of the two locking blocks 71 that are close to each other, and the elastic members 72 are located on the side away from the limiting block 4.
[0044] The slider 5 has two positioning grooves 11 that connect to the receiving grooves 10. The ends of the two elastic elements 72 that are close to each other are located in the two positioning grooves 11 respectively. In this application, the elastic element 72 can be a spring. The side walls of the two locking blocks 71 that are close to each other and located near the end of the limiting block 4 are each formed with a locking hook 8. The two side walls of the limiting block 4 near the end of the slider 5 are each formed with a pull hook 9.
[0045] When the slider 5 moves toward the limit block 4, the locking hook 8 will come into contact with the pull hook 9. During this contact process, the locking hook 8 will generate a pushing force with the help of the pull hook 9, causing the locking block 71 to start rotating, and the rotating locking block 71 will compress the elastic element 72.
[0046] As slider 5 continues to move, when hook 8 moves past hook 9, the compressed elastic element 72 releases its elastic force, pushing lock block 71 to rotate and reset. The reset lock block 71 then drives hook 8 to rotate, ultimately allowing hook 8 and hook 9 to form a stable hook connection.
[0047] When the slider 5 moves away from the limit block 4, the locking hook 8 will apply a pulling force to the limit block 4 through the pull hook 9, causing the limit block 4 to slide, so that the terminal of the charging coil is separated from the limit block 4, thus facilitating the demolding of the charging coil coated part.
[0048] The implementation principle of an injection mold for facilitating demolding of a charging coil overmolded component according to an embodiment of this application is as follows: During the mold closing stage, the moving mold 1 gradually moves downward, and the drive block 6 connected to the moving mold 1 also descends synchronously. During this process, the drive block 6 slides along the preset drive hole 12, and the force generated by this sliding will drive the slider 5 to move smoothly towards the limiting block 4 until the mold closing action is completed. When the slider 5 moves towards the limiting block 4, the locking hook 8 will abut against the pull hook 9. During this contact process, the locking hook 8 will generate a pushing force with the help of the pull hook 9, causing the locking block 71 to start rotating, and the rotating locking block 71 will compress the elastic element 72. As the slider 5 continues to move, when the locking hook 8 moves to a position past the pull hook 9, the compressed elastic element 72 will release its elasticity, pushing the locking block 71 to rotate and reset. The reset locking block 71 will then drive the locking hook 8 to rotate, ultimately allowing the locking hook 8 and the pull hook 9 to form a stable hooking state.
[0049] During the mold opening stage, the moving mold 1 begins to move upward, and the driving block 6 also rises upward under the influence of the moving mold 1. The driving block 6 continues to slide within the driving hole 12, and the force generated by its sliding will cause the slider 5 to slowly move away from the limiting block 4 until the mold opening action is completed. When the slider 5 moves away from the limiting block 4, the locking hook 8 will apply a pulling force to the limiting block 4 through the pull hook 9, causing the limiting block 4 to slide along with it, so that the terminal of the charging coil is separated from the limiting block 4, thereby facilitating the demolding of the charging coil coated part.
[0050] Example 2:
[0051] Reference Figure 6 and Figure 7The difference between this embodiment and embodiment 1 is that an installation block 14 is fixedly installed on the bottom of the limiting block 4 near the slider 5. Two limiting posts 15 are fixedly installed on the installation block 14. The two limiting posts 15 are located on the side of the two hooks 9 away from the limiting block 4, and the two hooks 9 and the two limiting posts 15 are hooked together.
[0052] The implementation principle of this embodiment 2 is as follows: When the moving mold 1 descends for mold closing, the moving mold 1 will drive the slider 5 to move towards the limit block 4 via the drive block 6. During this process, the slider 5 will simultaneously drive the locking mechanism 7 to lock the limit post 15.
[0053] When the moving mold 1 rises to perform the mold opening action, the moving mold 1 also drives the slider 5 to move away from the limit block 4 with the help of the drive block 6. At this time, the slider 5 will generate a pulling force on the limit post 15 through the locking mechanism 7, and the limit post 15 will further pull the limit block 4 to slide through the mounting block 14, so that the limit block 4 is separated from the terminal of the charging coil, which provides convenient conditions for the demolding of the charging coil coated part.
[0054] When the locking mechanism 7 performs the locking operation, it will not contact the limit block 4. This prevents the limit block 4 from moving during the locking process, effectively ensuring that the charging coil terminal is not easily deformed and guaranteeing the structural stability and reliability of the relevant components.
[0055] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.
Claims
1. An injection mold for easy demolding of a charging coil coated component, characterized in that: It includes a moving mold (1) and a fixed mold (2). The fixed mold (2) is provided with a mold core (3). A limit block (4) is slidably placed in the mold core (3). A slider (5) is slidably arranged on the fixed mold (2). The moving mold (1) is provided with a drive block (6) for driving the slider (5) to slide back and forth. A locking mechanism (7) is provided on the slider (5). The locking mechanism (7) is used to lock the limit block (4).
2. The injection mold for easy demolding of the charging coil coated component according to claim 1, characterized in that: The locking mechanism (7) includes a locking block (71) and an elastic element (72). The locking block (71) is rotatably mounted on the slider (5). A locking hook (8) is formed at the end of the locking block (71). The elastic element (72) is disposed between the locking block (71) and the slider (5). A pull hook (9) is formed at the end of the limiting block (4) near the slider (5). The elastic element (72) pushes the locking block (71) to rotate and causes the locking hook (8) to engage with the pull hook (9).
3. The injection mold for easy demolding of the charging coil coated component according to claim 2, characterized in that: Two locking blocks (71) and two elastic elements (72) are symmetrically arranged along the sliding direction of the vertical slider (5). Two hooks (9) are arranged along the sliding direction of the vertical limiting block (4). The two locking hooks (8) correspond to the two hooks (9).
4. The injection mold for easy demolding of the charging coil coating component according to claim 2, characterized in that: The slider (5) has a receiving groove (10), and the locking block (71) is rotatably disposed in the receiving groove (10).
5. The injection mold for easy demolding of the charging coil coated component according to claim 4, characterized in that: The slider (5) has a positioning groove (11) that communicates with the receiving groove (10). One end of the elastic element (72) abuts against the locking block (71), and the other end is located in the positioning groove (11).
6. The injection mold for easy demolding of the charging coil coated component according to claim 1, characterized in that: The bottom of the driving block (6) is inclined away from the limiting block (4), and the slider (5) has a driving hole (12). The bottom of the driving hole (12) is inclined away from the limiting block (4), and the driving block (6) is slidably disposed in the driving hole (12).
7. The injection mold for easy demolding of the charging coil coated component according to claim 1, characterized in that: The fixed mold (2) is provided with pressure strips (13) on both sides of the slider (5). The moving mold (1) is T-shaped, and the two pressure strips (13) press down on both sides of the moving mold (1).
8. The injection mold for easy demolding of the charging coil coated component according to claim 1, characterized in that: An installation block (14) is fixedly provided on the limiting block (4), and a limiting post (15) is fixedly provided on the installation block (14). The locking mechanism (7) is used to lock the limiting post (15).