A rapid demoulding precision injection mould for a charger plug housing

CN224689535UActive Publication Date: 2026-08-28DONGGUAN LIJING PLASTIC CO LTD
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Patent Information

Application Number
CN202522180391.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2026-08-28
Estimated Expiration
2035-10-15

AI Technical Summary

Technical Problem

通过上述结构可知,在上压模与下压模上都加装有降温装置,有效地防止了模具的局部过热现象,使得模具的生产质量得到了保障,但是充电器插头外壳注塑模具无法快速脱模,直接拖慢整个生产链条的运转节奏,这不仅会延长单个产品的成型周期,让单位时间内的产量大打折扣,还可能因脱模滞缓导致模具温度异常,影响后续注塑环节的稳定性,增加产品出现变形、飞边等瑕疵的概率,进而推高生产成本与质检压力,成为制约生产效率提升的显著瓶颈

Benefits of technology

第一、本实用新型通过设置的脱模组件,驱动电机启动后带动安装框内的螺纹杆转动,使外侧螺纹连接的螺纹件通过连接杆带动脱模杆同步移动,脱模杆与固定模具精准插接,从而实现自动化脱模,通过机械传动方式替代传统手动或低效脱模,不仅能精准控制脱模力度与速度,避免人工操作导致的产品损伤,还能通过结构联动提升脱模效率,减少生产等待时间,助力实现充电器插头外壳的快速、稳定脱模,保障生产连续性并降低不良品率;

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Abstract

The utility model discloses a charger plug shell quick demoulding precision injection mold relates to charger plug shell production field, including the bottom plate, both sides of the upper end of bottom plate all are fixedly connected with the mounting panel, the upper end one side of bottom plate is fixedly connected with fixed mould, the outside fixed connection of mounting panel has electric push rod, the other end fixed connection of electric push rod has movable mould, the outside fixed connection of fixed mould has installation subassembly, the outside of installation subassembly is provided with demoulding subassembly, and the demoulding subassembly includes the mounting frame. The utility model adopts the above -mentioned structure, replaces traditional manual or low -efficiency demoulding through mechanical drive mode, not only can accurate control demoulding strength and speed, avoid the product damage caused by artificial operation, still can through structural linkage promote demoulding efficiency, reduce production waiting time, help realizes the quick, stable demoulding of charger plug shell, guarantees production continuity and reduces the defective product rate.
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Description

Technical Field

[0001] This utility model belongs to the field of charger plug shell production, and specifically relates to a precision injection mold for quick demolding of charger plug shell. Background Technology

[0002] A precision injection mold for rapid demolding of charger plug housings is a specialized device designed to solve the problems of slow demolding and insufficient precision of traditional molds. By optimizing the mold structure, it can significantly accelerate the demolding speed while ensuring the dimensional accuracy and surface quality of the charger plug housing injection molding, thereby improving production efficiency, reducing defective products caused by slow demolding, and achieving efficient and precise mass production.

[0003] According to Chinese Patent No. CN212666571U, a charger shell injection mold is disclosed, including a base. A placement groove is formed at the center of the top of the base. Support frames are fixedly installed on both sides of the top of the base by bolts. An electrically operated telescopic rod is fixedly installed on the lower top surface of the support frames. A mold box is fixedly connected to the bottom of the electrically operated telescopic rod and is placed within the placement groove. An upper mold and a lower mold are installed inside the mold box. A water tank is fixedly installed on the top of the mold box. A mold block is fixedly installed at the bottom of the upper mold. A mold groove is formed on the top of the lower mold, and the mold block and mold groove are arranged opposite each other. This invention effectively prevents localized overheating of the mold, ensuring the production quality of the mold. Furthermore, the mold box and support frames reduce the probability of burns to operators, improving safety and extending the service life of the equipment. As can be seen from the above structure, cooling devices are installed on both the upper and lower molds, which effectively prevents local overheating of the mold and ensures the production quality of the mold. However, the charging plug shell injection mold cannot be demolded quickly, which directly slows down the operation of the entire production chain. This not only prolongs the molding cycle of individual products and reduces the output per unit time, but may also cause abnormal mold temperature due to slow demolding, affecting the stability of subsequent injection molding processes, increasing the probability of defects such as product deformation and flash, and thus increasing production costs and quality inspection pressure, becoming a significant bottleneck restricting the improvement of production efficiency. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a precision injection mold for quick demolding of a charger plug shell, so as to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A precision injection mold for quick demolding of a charger plug housing includes a base plate. Mounting plates are fixedly connected to both sides of the upper end of the base plate. A fixed mold is fixedly connected to one side of the upper end of the base plate. An electric push rod is fixedly connected to the outer side of the mounting plate. A movable mold is fixedly connected to the other end of the electric push rod. An installation assembly is fixedly connected to the outer side of the fixed mold. A demolding assembly is provided on the outer side of the installation assembly. The demolding assembly includes an installation frame. A drive motor is fixedly connected to the outer side of the installation frame. A threaded rod is rotatably connected to the inside of the installation frame. A threaded component is threadedly connected to the outer side of the threaded rod. A connecting rod is fixedly connected to the outer side of the threaded component. A demolding rod is fixedly connected to the inner side of the connecting rod. The demolding rod and the fixed mold are interlocked. The output shaft of the drive motor is fixedly connected to the threaded rod.

[0006] As a preferred technical solution, the mounting component includes a snap-fit ​​block disposed on the outside of the fixed mold, and a snap-fit ​​frame is fixedly connected to the outside of the mounting frame, with the snap-fit ​​block and the snap-fit ​​frame interlocking with each other.

[0007] As a preferred technical solution, both sides of the snap-fit ​​block are provided with circular grooves, and snap-fit ​​springs are fixedly connected inside the circular grooves. The other end of the snap-fit ​​springs is fixedly connected with snap-fit ​​connectors. Snap-fit ​​holes are provided inside the snap-fit ​​frame, and the snap-fit ​​connectors and snap-fit ​​holes snap into each other.

[0008] As a preferred technical solution, release springs are fixedly connected to both sides of the snap-fit ​​frame on the outer side of the snap-fit ​​hole, and a pressing plate is fixedly connected to the other end of the release spring. A release block is fixedly connected to the inner side of the pressing plate, and the release block is inserted into the snap-fit ​​hole.

[0009] As a preferred technical solution, a hidden groove is provided at the upper end of the base plate, and a fixing through hole is provided inside the hidden groove. A fixing screw is inserted into the fixing through hole, and the fixing screw passes through the fixing through hole and is threadedly connected to the base layer.

[0010] As a preferred technical solution, the interior of the mounting frame and the threaded component are slidably inserted into each other, a limiting rod is fixedly connected inside the mounting frame, a limiting hole is opened on the surface of the threaded component, and the limiting hole and the limiting rod are inserted into each other.

[0011] As a preferred technical solution, the upper end of the base plate is slidably connected to the lower end of the movable mold, and limit grooves are provided on both sides of the upper end of the base plate. The lower end of the movable mold is fixedly connected to a limit slider, and the limit grooves and the limit sliders are slidably connected to each other.

[0012] In summary, the present invention has the following main advantages: First, this utility model, through the set demolding component, drives the threaded rod in the mounting frame to rotate after the drive motor starts, so that the threaded part connected by the outer thread can drive the demolding rod to move synchronously through the connecting rod. The demolding rod is precisely inserted into the fixed mold, thereby realizing automated demolding. By replacing the traditional manual or inefficient demolding through mechanical transmission, it can not only accurately control the demolding force and speed, avoiding product damage caused by manual operation, but also improve demolding efficiency through structural linkage, reduce production waiting time, help to achieve fast and stable demolding of charger plug shell, ensure production continuity and reduce defect rate; Secondly, this utility model, through its installation components, allows the snap-fit ​​block to be inserted into the snap-fit ​​frame. During insertion, the snap-fit ​​connector is squeezed into the circular groove. After the snap-fit ​​block is fully inserted into the snap-fit ​​frame, the position of the snap-fit ​​hole aligns with the position of the circular groove. At this point, the snap-fit ​​connector will pop out of the circular groove under the action of the snap-fit ​​spring, allowing the snap-fit ​​connector to engage with the snap-fit ​​hole, thus achieving a snap-fit ​​effect. This enables the installation of the demolding component without the need for complex tools; a stable connection can be achieved solely through mechanical snap-fit. This simplifies the installation steps, shortens the assembly time, and ensures installation accuracy and structural stability. It also facilitates the later maintenance and replacement of the demolding component, improving the overall equipment's operational efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the fixed mold of this utility model; Figure 3 This is a schematic diagram of the demolding assembly of this utility model; Figure 4 This is a structural schematic diagram of the mounting component of this utility model.

[0014] Reference numerals: 1. Base plate; 2. Mounting plate; 3. Fixed mold; 4. Movable mold; 5. Electric push rod; 7. Mounting assembly; 71. Snap-fit ​​frame; 72. Snap-fit ​​hole; 73. Snap-fit ​​block; 74. Circular groove; 75. Snap-fit ​​spring; 76. Snap-fit ​​connector; 8. Demolding assembly; 81. Mounting frame; 82. Drive motor; 83. Threaded rod; 84. Threaded component; 85. Connecting rod; 86. Demolding rod; 9. Limiting slide groove; 10. Limiting slider; 11. Hidden groove; 12. Fixing through hole; 13. Fixing screw; 14. Limiting insertion hole; 15. Limiting insertion rod; 16. Release spring; 17. Pressing plate; 18. Release block. Detailed Implementation

[0015] Example refer to Figures 1 to 4This embodiment provides a precision injection mold for quick demolding of a charger plug housing, comprising a base plate 1, mounting plates 2 fixedly connected to both sides of the upper end of the base plate 1, a fixed mold 3 fixedly connected to one side of the upper end of the base plate 1, an electric push rod 5 fixedly connected to the outer side of the mounting plate 2, a movable mold 4 fixedly connected to the other end of the electric push rod 5, a mounting assembly 7 fixedly connected to the outer side of the fixed mold 3, and a demolding assembly 8 provided on the outer side of the mounting assembly 7. The demolding assembly 8 includes a mounting frame 81, and a drive motor 82 fixedly connected to the outer side of the mounting frame 81. The internal rotating connection is a threaded rod 83, the outer side of the threaded rod 83 is threadedly connected to a threaded component 84, the outer side of the threaded component 84 is fixedly connected to a connecting rod 85, the inner side of the connecting rod 85 is fixedly connected to a demolding rod 86, the demolding rod 86 is interlocked with the fixed mold 3, the output shaft of the drive motor 82 is fixedly connected to the threaded rod 83, the upper end of the base plate 1 is provided with a hidden groove 11, the hidden groove 11 is provided with a fixed through hole 12, a fixing screw 13 is inserted into the fixed through hole 12, and the fixing screw 13 passes through the fixed through hole 12 and is threadedly connected to the base layer.

[0016] refer to Figures 2-4 The mounting component 7 includes a snap-fit ​​block 73 disposed on the outside of the fixed mold 3. A snap-fit ​​frame 71 is fixedly connected to the outside of the mounting frame 81. The snap-fit ​​block 73 and the snap-fit ​​frame 71 are interlocked. Circular grooves 74 are opened on both sides of the snap-fit ​​block 73. A snap-fit ​​spring 75 is fixedly connected inside the circular groove 74. A snap-fit ​​connector 76 is fixedly connected to the other end of the snap-fit ​​spring 75. A snap-fit ​​hole 72 is opened inside the snap-fit ​​frame 71. The snap-fit ​​connector 76 is interlocked with the snap-fit ​​hole 72. When the snap-fit ​​block 73 is inserted into the snap-fit ​​frame 71, the snap-fit ​​connector 76 is squeezed into the circular groove 74. After the snap-fit ​​block 73 is fully inserted into the snap-fit ​​frame 71, the position of the snap-fit ​​hole 72 is consistent with the position of the circular groove 74. At this time, the snap-fit ​​connector 76 will pop out of the circular groove 74 under the action of the snap-fit ​​spring 75, so that the snap-fit ​​connector 76 is interlocked with the snap-fit ​​hole 72, thereby achieving the snap-fit ​​effect and enabling the demolding component 8 to be installed.

[0017] refer to Figure 3 Release springs 16 are fixedly connected to both sides of the snap-fit ​​frame 71 on the outside of the snap-fit ​​hole 72. A pressing plate 17 is fixedly connected to the other end of the release spring 16. A release block 18 is fixedly connected to the inside of the pressing plate 17. The release block 18 is inserted into the snap-fit ​​hole 72. By pressing the pressing plate 17 inward, the release block 18 moves into the snap-fit ​​hole 72. After the release block 18 enters the snap-fit ​​hole 72, the snap-fit ​​connector 76 can be squeezed out. After the snap-fit ​​connector 76 is disengaged from the snap-fit ​​hole 72, the demolding assembly 8 can be easily disassembled.

[0018] refer to Figure 3The mounting frame 81 is slidably inserted into the threaded part 84. The mounting frame 81 is fixedly connected to the limiting rod 15. The surface of the threaded part 84 is provided with a limiting hole 14. The limiting hole 14 and the limiting rod 15 are inserted into each other. The limiting rod 15 and the limiting hole 14 can limit the threaded part 84 during use, thereby preventing the threaded part 84 from rotating with the rotation of the threaded rod 83.

[0019] refer to Figure 1 The upper end of the base plate 1 is slidably connected to the lower end of the movable mold 4. Limiting grooves 9 are provided on both sides of the upper end of the base plate 1. The lower end of the movable mold 4 is fixedly connected to the limiting slider 10. The limiting grooves 9 and the limiting slider 10 are slidably connected to each other. The limiting slider 10 and the limiting grooves 9 can limit the movable mold 4, so that the movable mold 4 slides more stably during use.

[0020] Operating principle and advantages: First, fix the device in a suitable position. Then, insert the snap-fit ​​block 73 into the snap-fit ​​frame 71. During insertion, the snap-fit ​​connector 76 is squeezed into the circular groove 74. After the snap-fit ​​block 73 is fully inserted into the snap-fit ​​frame 71, the position of the snap-fit ​​hole 72 aligns with the position of the circular groove 74. At this time, the snap-fit ​​connector 76 will pop out of the circular groove 74 under the action of the snap-fit ​​spring 75, allowing the snap-fit ​​connector 76 to engage with the snap-fit ​​hole 72, thus achieving the snap-fit ​​effect. This allows for the installation of the demolding component 8, after which it can be used normally. The device injects molding material into the mold through the injection hole. After injection, the electric push rod 5 retracts to open the mold. When the mold opens, the drive motor 82 starts and drives the threaded rod 83 in the mounting frame 81 to rotate. This causes the threaded part 84 connected to the outer thread to move synchronously with the demolding rod 86 through the connecting rod 85. The demolding rod 86 is precisely inserted into the fixed mold 3, thereby realizing automated demolding. By replacing the traditional manual or inefficient demolding with mechanical transmission, it can not only accurately control the demolding force and speed and avoid product damage caused by manual operation, but also improve demolding efficiency through structural linkage.

Claims

1. A precision injection mold for quick demolding of a charger plug housing, characterized in that: The system includes a base plate (1), with mounting plates (2) fixedly connected to both sides of the upper end of the base plate (1). A fixed mold (3) is fixedly connected to one side of the upper end of the base plate (1). An electric push rod (5) is fixedly connected to the outer side of the mounting plate (2), and a movable mold (4) is fixedly connected to the other end of the electric push rod (5). An installation assembly (7) is fixedly connected to the outer side of the fixed mold (3). A demolding assembly (8) is provided on the outer side of the installation assembly (7). The demolding assembly (8) includes a mounting frame (81). A drive motor (82) is fixedly connected to the outside of the mounting frame (81), and a threaded rod (83) is rotatably connected inside the mounting frame (81). A threaded part (84) is threadedly connected to the outside of the threaded rod (83), and a connecting rod (85) is fixedly connected to the outside of the threaded part (84). A demolding rod (86) is fixedly connected to the inside of the connecting rod (85). The demolding rod (86) is inserted into the fixed mold (3). The output shaft of the drive motor (82) is fixedly connected to the threaded rod (83).

2. The precision injection mold for quick demolding of a charger plug housing according to claim 1, characterized in that: The mounting component (7) includes a snap-fit ​​block (73) disposed on the outside of the fixed mold (3), and a snap-fit ​​frame (71) is fixedly connected to the outside of the mounting frame (81). The snap-fit ​​block (73) and the snap-fit ​​frame (71) are interlocked.

3. A precision injection mold for quick demolding of a charger plug housing according to claim 2, characterized in that: Both sides of the snap-fit ​​block (73) are provided with circular grooves (74), and snap-fit ​​springs (75) are fixedly connected inside the circular grooves (74). The other end of the snap-fit ​​springs (75) is fixedly connected with snap-fit ​​connectors (76). The snap-fit ​​frame (71) is provided with snap-fit ​​holes (72), and the snap-fit ​​connectors (76) and snap-fit ​​holes (72) are snapped together.

4. A precision injection mold for quick demolding of a charger plug housing according to claim 3, characterized in that: The two sides of the snap-fit ​​frame (71) are fixedly connected to release springs (16) on the outside of the snap-fit ​​hole (72). The other end of the release spring (16) is fixedly connected to a pressing plate (17). The inside of the pressing plate (17) is fixedly connected to a release block (18). The release block (18) is inserted into the snap-fit ​​hole (72).

5. A precision injection mold for quick demolding of a charger plug housing according to claim 1, characterized in that: The upper end of the base plate (1) is provided with a hidden groove (11), and a fixing through hole (12) is provided inside the hidden groove (11). A fixing screw (13) is inserted into the fixing through hole (12), and the fixing screw (13) passes through the fixing through hole (12) and is threaded to the base layer.

6. A precision injection mold for quick demolding of a charger plug housing according to claim 1, characterized in that: The interior of the mounting frame (81) is slidably inserted into the threaded part (84). The interior of the mounting frame (81) is fixedly connected to a limiting rod (15). A limiting hole (14) is opened on the surface of the threaded part (84). The limiting hole (14) and the limiting rod (15) are inserted into each other.

7. A precision injection mold for quick demolding of a charger plug housing according to claim 1, characterized in that: The upper end of the base plate (1) is slidably connected to the lower end of the movable mold (4). Limiting grooves (9) are provided on both sides of the upper end of the base plate (1). A limiting slider (10) is fixedly connected to the lower end of the movable mold (4). The limiting grooves (9) and the limiting slider (10) are slidably connected to each other.

Citation Information

Patent Citations

  • Charger shell injection mold

    CN212666571U