A connector micro-terminal rapid demolding injection mold
By introducing a demolding mechanism into the injection mold of connector miniature terminals, the upper mold is smoothly raised and lowered by a cylinder and the finished product is blown away by gas. This solves the problems of difficult mold disassembly and unstable assembly, and achieves rapid demolding and precise alignment, thereby improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN DAOGONG PRECISION MOULD CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-22
Smart Images

Figure CN224266103U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molds for connector micro terminals, specifically a quick demolding injection mold for connector micro terminals. Background Technology
[0002] Injection molds are tools used to produce plastic products. Molten plastic is injected into the mold through the injection molding process, and the molded product is obtained after cooling and solidification. Connector miniature terminals are miniaturized connectors, mainly used in applications requiring high-density connections and space saving. Existing connector miniature terminal injection molds are inconvenient to disassemble and demold after cooling, affecting production speed. Furthermore, the assembly between the upper and lower molds is unstable during fitting, easily shifting positions and affecting alignment. Additionally, the upper mold is prone to impacting the lower mold when descending, affecting its lifespan and causing adverse effects on user experience. Therefore, we propose a rapid demolding injection mold for connector miniature terminals. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides a quick-release injection mold for connector miniature terminals. It features convenient and rapid demolding, easy smooth lifting and lowering of the upper mold, improved alignment accuracy between the upper and lower molds, prevention of displacement during assembly affecting use, and convenient installation, disassembly, and replacement of the upper mold. It can effectively solve the problems in the background technology.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a quick-release injection mold for connector miniature terminals, comprising an upper mold, a lower mold at the lower end of the upper mold, a base on the lower outer surface of the lower mold, first fixing frames at the middle of both sides of the upper outer surface of the base, a connecting plate on the upper outer surface of the first fixing frame, a multi-section cylinder in the middle of the connecting plate, and a demolding mechanism between the upper mold and the lower mold, the demolding mechanism comprising a sealing ring, an air injection rod, a second fixing frame, a guide plate, and a guide groove. The system includes a limiting plate, a limiting groove, an air jet through hole, a fixing plate, fixing bolts, limiting holes, a spring, a fixing rod, and a slot. The fixing plate is located on the lower outer surface of the multi-section cylinder. The four sets of fixing bolts are located at the front and rear ends of the upper outer surface of the fixing plate. The two sets of limiting holes are respectively opened in the middle of the upper outer surface of the fixing plate. The front and rear ends of the upper outer surface of the upper mold are provided with threaded grooves. The two sets of guide plates are located on the lower outer surface of the upper mold. The two sets of second fixing brackets are located on the upper outer surface of the lower mold.
[0007] Preferably, the guide groove is located in the middle of the upper outer surface of the second fixing frame, the limiting groove is located in the middle of the outer surface of one side of the guide groove, the limiting plate is located inside the guide groove, the spring is located on the lower outer surface of the limiting plate, and the hole groove is located in the middle of one side of the upper outer surface of the limiting plate.
[0008] Preferably, the fixing rod is located in the middle of the limiting groove, the two sets of sealing rings are respectively located at the lower ends of the outer surface of the front end of the lower mold, the air injection rod is located in the middle of the sealing ring, and the four sets of air jet holes are respectively located on both sides of the inner surface of the upper end of the lower mold.
[0009] Preferably, the fixing plate is slidably connected to the first fixing frame through a limiting hole, and the fixing plate is detachably connected to the upper mold through fixing bolts.
[0010] Preferably, the guide plate and the guide groove are slidably connected, the limiting plate and the guide groove are slidably connected, the limiting plate is elastically connected to the second fixing frame by a spring, the limiting plate is slidably connected to the fixing rod by a hole and groove, and the limiting plate and the limiting groove are slidably connected.
[0011] (III) Beneficial Effects
[0012] Compared with the prior art, this utility model provides a quick-release injection mold for connector miniature terminals, which has the following beneficial effects:
[0013] This connector miniature terminal quick-release injection mold can facilitate quick demolding, smoothly drive the upper mold to rise and fall, improve the alignment accuracy between the upper and lower molds, avoid displacement during assembly affecting use, and facilitate the installation, disassembly and replacement of the upper mold. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a quick-release injection mold for a connector miniature terminal according to the present invention.
[0015] Figure 2 This is a structural diagram of the upper and lower molds in a quick-release injection mold for a connector miniature terminal according to the present invention.
[0016] Figure 3 This is a partial structural diagram of an injection mold for quick demolding of a connector miniature terminal according to the present invention.
[0017] Figure 4 This utility model relates to a quick-release injection mold for connector miniature terminals. Figure 3 Enlarged view of point A in the middle.
[0018] In the diagram: 1. Upper mold; 2. Lower mold; 3. Base; 4. First fixing frame; 5. Connecting plate; 6. Multi-section cylinder; 7. Demolding mechanism; 8. Sealing ring; 9. Air injection rod; 10. Second fixing frame; 11. Guide plate; 12. Guide groove; 13. Limiting plate; 14. Limiting groove; 15. Air jet through hole; 16. Fixing plate; 17. Fixing bolt; 18. Limiting hole; 19. Spring; 20. Fixing rod; 21. Hole and groove. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] This embodiment is a quick-release injection mold for connector miniature terminals.
[0021] like Figure 1-4 As shown, the system includes an upper mold 1, a lower mold 2 at the lower end of the upper mold 1, a base 3 on the lower outer surface of the lower mold 2, first fixing frames 4 at the middle of both sides of the upper outer surface of the base 3, a connecting plate 5 on the upper outer surface of the first fixing frame 4, and a multi-section cylinder 6 in the middle of the connecting plate 5. A demolding mechanism 7 is provided between the upper mold 1 and the lower mold 2. The demolding mechanism 7 includes a sealing ring 8, an air injection rod 9, a second fixing frame 10, a guide plate 11, a guide groove 12, a limiting plate 13, a limiting groove 14, an air jet through hole 15, and a fixing plate 16. The fixing bolts 17, limiting holes 18, springs 19, fixing rods 20 and slots 21 are fixed. The fixing plate 16 is located on the lower outer surface of the multi-section cylinder 6. Four sets of fixing bolts 17 are located at the front and rear ends of the upper outer surface of the fixing plate 16. Two sets of limiting holes 18 are respectively opened in the middle of the upper outer surface of the fixing plate 16. Threaded grooves are opened at the front and rear ends of the upper outer surface of the upper mold 1. Two sets of guide plates 11 are respectively located on the lower outer surface of the upper mold 1. Two sets of second fixing brackets 10 are respectively located on the upper outer surface of the lower mold 2.
[0022] The guide groove 12 is located in the middle of the upper outer surface of the second fixed frame 10, the limiting groove 14 is located in the middle of one side of the outer surface of the guide groove 12, the limiting plate 13 is located inside the guide groove 12, the spring 19 is located on the lower outer surface of the limiting plate 13, and the slot 21 is located in the middle of one side of the upper outer surface of the limiting plate 13; the fixing rod 20 is located in the middle of the limiting groove 14, the two sets of sealing rings 8 are located at the lower ends of both sides of the front outer surface of the lower mold 2, the air injection rod 9 is located in the middle of the sealing rings 8, and four sets of air injection holes 15 cm apart. The upper inner surface of the lower mold 2 is located on both sides; the fixing plate 16 is slidably connected to the first fixing frame 4 through the limiting hole 18, and the fixing plate 16 is detachably connected to the upper mold 1 through the fixing bolt 17; the guide plate 11 is slidably connected to the guide groove 12, the limiting plate 13 is slidably connected to the guide groove 12, the limiting plate 13 is elastically connected to the second fixing frame 10 through the spring 19, the limiting plate 13 is slidably connected to the fixing rod 20 through the hole groove 21, and the limiting plate 13 is slidably connected to the limiting groove 14.
[0023] It should be noted that this utility model is a quick-release injection mold for connector miniature terminals. The upper mold 1 is installed and removed by the mutual cooperation of the fixing plate 16 and the upper mold 1 through the fixing bolts 17 and the threaded groove. The injection molding material is injected into the lower mold 2. The multi-stage cylinder 6 is activated, causing the fixing plate 16 to descend while simultaneously causing the limiting hole 18 to slide along the first fixing frame 4. This descends the upper mold 1 while simultaneously causing the guide plate 11 to slide along the guide groove 12, pushing the limiting plate 13 to slide along the guide groove 12. The limiting plate 13 slides along the limiting groove 14 while simultaneously causing... The slot 21 slides along the fixed rod 20, compressing the spring 19 and causing the upper mold 1 to descend smoothly. At the same time, the upper mold 1 and the lower mold 2 are put together for injection molding. After the injection molding cools down, the multi-section cylinder 6 is started to lift the upper mold 1. One end of the air injection rod 9 is connected to an air pump. The air pump sprays gas through the air jet hole 15, blowing the finished product on the inner wall of the lower mold 2 for quick demolding. This facilitates quick demolding, makes it easy to drive the upper mold 1 to rise and fall smoothly, improves the alignment accuracy between the upper mold 1 and the lower mold 2, avoids displacement during assembly that affects use, and makes it easy to install, disassemble and replace the upper mold 1.
[0024] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A quick-release injection mold for connector miniature terminals, comprising an upper mold (1), characterized in that: The lower end of the upper mold (1) is provided with a lower mold (2), and the lower outer surface of the lower mold (2) is provided with a base (3). A first fixing frame (4) is provided at the middle of both sides of the upper outer surface of the base (3). A connecting plate (5) is provided on the upper outer surface of the first fixing frame (4). A multi-section cylinder (6) is provided in the middle of the connecting plate (5). A demolding mechanism (7) is provided between the upper mold (1) and the lower mold (2). The demolding mechanism (7) includes a sealing ring (8), an air injection rod (9), a second fixing frame (10), a guide plate (11), a guide groove (12), a limiting plate (13), a limiting groove (14), an air jet hole (15), and a fixing plate (6). 16), fixing bolts (17), limiting holes (18), springs (19), fixing rods (20) and slots (21), the fixing plate (16) is located on the lower outer surface of the multi-section cylinder (6), the four sets of fixing bolts (17) are located at the front and rear ends of the upper outer surface of the fixing plate (16), the two sets of limiting holes (18) are respectively opened in the middle of the upper outer surface of the fixing plate (16), the upper outer surface of the upper mold (1) is provided with threaded slots at the front and rear ends of the upper outer surface, the two sets of guide plates (11) are respectively located on the lower outer surface of the upper mold (1), and the two sets of second fixing brackets (10) are respectively located on the upper outer surface of the lower mold (2).
2. The quick-release injection mold for connector miniature terminals according to claim 1, characterized in that: The guide groove (12) is located in the middle of the upper outer surface of the second fixing frame (10), the limiting groove (14) is located in the middle of the outer surface of one side of the guide groove (12), the limiting plate (13) is located inside the guide groove (12), the spring (19) is located on the lower outer surface of the limiting plate (13), and the hole groove (21) is located in the middle of one side of the upper outer surface of the limiting plate (13).
3. The quick-release injection mold for connector miniature terminals according to claim 2, characterized in that: The fixing rod (20) is located in the middle of the limiting groove (14), the two sets of sealing rings (8) are located at the lower ends of the outer surface of the front end of the lower mold (2), the air injection rod (9) is located in the middle of the sealing ring (8), and the four sets of air jet holes (15) are located on both sides of the inner surface of the upper end of the lower mold (2).
4. The quick-release injection mold for connector miniature terminals according to claim 3, characterized in that: The fixing plate (16) is slidably connected to the first fixing frame (4) through the limiting hole (18), and the fixing plate (16) and the upper mold (1) are detachably connected by fixing bolts (17).
5. The quick-release injection mold for connector miniature terminals according to claim 4, characterized in that: The guide plate (11) and the guide groove (12) are slidably connected. The limiting plate (13) and the guide groove (12) are slidably connected. The limiting plate (13) is elastically connected to the second fixing frame (10) through the spring (19). The limiting plate (13) is slidably connected to the fixing rod (20) through the hole groove (21). The limiting plate (13) and the limiting groove (14) are slidably connected.