Multi-PIN connector production die
By introducing a mold closing assembly and an ejector pin assembly into the production mold of multi-PIN connectors, the problem of difficult demolding was solved, achieving high-precision mold closing and convenient demolding, thereby improving production efficiency and finished product quality.
Patent Information
- Application Number
- CN202423174998.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing multi-pin connector production molds lack a structure that facilitates demolding, which makes it easy to damage the pins when manually removing them after injection molding, thus affecting the quality of the finished product.
A multi-pin connector manufacturing mold was designed, which adopts a combination structure of mold closing assembly and ejector assembly. The mold closing is precisely aligned by driving the threaded rod with a servo motor, and the ejector assembly is ejected and demolded by driving the motor and bevel gear transmission.
It achieves high-precision mold closing and convenient demolding, avoids needle damage, and improves the reliability of finished products and production efficiency.
Smart Images

Figure CN223567079U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically to a production mold for multi-PIN connectors. Background Technology
[0002] Multi-pin connectors, also known as multi-core connectors, are connectors with multiple contacts and are typically used to connect multiple circuits or signal lines. Currently, most multi-pin connectors are manufactured using injection molding, which requires the use of production molds.
[0003] A PIN injection molding device, application number CN202110699122.4, includes a feeding device located on one side of the injection molding device and an ejector device located within the device. The feeding device comprises: a base connecting bracket, a slider telescopic cylinder, a feeding slider, an ejector anti-vibration block, a conveying pipe, a connecting block, a vibration motor, guide pillars, a spring, and a storage box. The slider telescopic cylinder is located above the base connecting bracket and is drivenly connected to the feeding slider. At least one ejector anti-vibration block is mounted on the base connecting bracket and is movably connected to one side of the feeding slider. Each ejector anti-vibration block has several conveying pipes evenly distributed on it, with one end of each pipe connected to the connecting block. The vibration motor is located at the bottom of the connecting block. Several guide pillars are positioned between the connecting block and the base connecting bracket, each guide pillar being fitted with a spring. The storage box is located on the connecting block. This invention effectively improves the efficiency of PIN injection molding production.
[0004] The device has a fully automatic feeding structure, but it does not have a structure to facilitate demolding. The PIN connector has a relatively complex shape, and if it is forcibly removed manually after injection molding, the pins on the outside of the connector may be damaged, thus affecting the use of the finished PIN connector.
[0005] To address the aforementioned issues, there is an urgent need for innovative design based on the existing mold structure for multi-pin connector production. Utility Model Content
[0006] The purpose of this utility model is to provide a production mold for multi-PIN connectors, so as to solve the problem mentioned in the background art that the device does not have a structure for easy demolding, the PIN connector has a relatively complex shape, and if it is forcibly removed manually after injection molding, it is easy to damage the pins on the outside of the connector, thereby affecting the use of the finished PIN connector.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-PIN connector production mold, comprising a lower module with a support leg fixedly mounted on its lower end, an upper module disposed on the upper end of the lower module, a mold closing assembly connected to the upper module, a top plate disposed inside the lower module, pin holes equidistantly disposed inside the top plate, and an ejector pin assembly connected to the top plate; wherein, driving the mold closing assembly causes the upper module to move downward to close with the lower module; driving the ejector pin assembly causes the top plate to move upward along the inner side of the lower module to eject the workpiece.
[0008] Preferably, the lower module has a positioning groove on its inner side, and a positioning block is engaged with the inner side of the positioning groove. The positioning block is fixedly installed at the bottom of the upper module.
[0009] Preferably, the mold clamping assembly includes a support frame, a servo motor, a first threaded rod, and a first threaded connector. The support frame is fixedly connected to the outside of the lower module, and the servo motor is fixedly installed on the outside of the support frame. The output end of the servo motor passes through the inside of the support frame, and the output end of the servo motor is fixedly connected to the first threaded rod. The first threaded rod is threadedly connected to the outside of the first threaded connector.
[0010] Preferably, the mold clamping assembly further includes a guide rod and a guide block, wherein the guide rod is fixedly installed on the inner side of the support frame, and the guide block is slidably connected to the outer side of the guide rod.
[0011] Preferably, the mold assembly further includes a connecting plate, which is fixedly installed on the outside of the upper module, and the front and rear sides of the connecting plate are respectively connected to the first threaded connector and the guide block.
[0012] Preferably, the ejector pin assembly includes a drive motor and a first bevel gear. The drive motor is fixedly installed at the bottom of the lower module, and the output end of the drive motor is fixedly connected to the first bevel gear.
[0013] Preferably, the ejector pin assembly further includes a second bevel gear, a second threaded rod, a second threaded connector, and a connecting frame. The second threaded rod is rotatably connected to the inner side of the lower module, and the lower end of the second threaded rod is fixedly connected to the second bevel gear, which meshes with the first bevel gear. The outer side of the second threaded rod is threadedly connected to the second threaded connector, and the outer side of the second threaded connector is fixedly connected to the connecting frame, with the top of the connecting frame connected to the top plate.
[0014] Preferably, the ejector pin assembly further includes a sliding rod and a sliding groove. The sliding groove is formed inside the lower module, and the sliding rod is slidably connected to the inside of the sliding groove. The tail end of the sliding rod is fixedly connected to the outside of the connecting frame.
[0015] Compared with the prior art, the beneficial effect of this utility model is that the production mold for the multi-pin connector is equipped with:
[0016] 1. Mold closing structure: When the lower module and the upper module need to be molded together, the servo motor is run, which drives the first threaded rod to rotate. The rotation of the first threaded rod will drive the first threaded connector connected by the outer thread to move up and down. Through the up and down movement of the first threaded connector, the upper module connected to the connecting plate moves down and fits against the outside of the lower module to close the mold.
[0017] Furthermore, when the upper module moves downward, the positioning block at its bottom will insert into the inner side of the positioning groove. The insertion of the positioning groove and the positioning block improves the mold closing accuracy of the upper and lower modules, and avoids positional deviation during mold closing, which would affect the sealing of the inner mold cavity of the lower and upper modules.
[0018] 2. A structure that facilitates demolding: After the workpiece inside the mold cavity is formed, the upper module is moved upward, and then the drive motor is activated. The output of the drive motor drives the first bevel gear to rotate. The rotation of the first bevel gear drives the outer meshing second bevel gear to rotate. The rotation of the second bevel gear drives the connected second threaded rod to rotate inside the lower module. The rotation of the second threaded rod drives the outer threaded connector to move upward, thereby driving the top plate at the upper end of the connecting frame to push out the formed workpiece inside the lower module, achieving the effect of easy demolding. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0020] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;
[0021] Figure 3 This is a three-dimensional structural diagram of the mold clamping assembly of this utility model;
[0022] Figure 4 This is a schematic diagram of the front sectional view of the lower module of this utility model;
[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the top plate of this utility model;
[0024] Figure 6 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0025] In the diagram: 1. Lower module; 2. Support leg; 3. Upper module; 4. Positioning groove; 5. Positioning block; 6. Mold closing assembly; 601. Support frame; 602. Servo motor; 603. First threaded rod; 604. First threaded connector; 605. Guide rod; 606. Guide block; 607. Connecting plate; 7. Top plate; 8. Pin hole; 9. Ejector pin assembly; 901. Drive motor; 902. First bevel gear; 903. Second bevel gear; 904. Second threaded rod; 905. Second threaded connector; 906. Connecting frame; 907. Sliding rod; 908. Slide groove. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figures 1-6 This utility model provides a technical solution: a multi-pin connector manufacturing mold, comprising:
[0028] Example 1: As Figures 1-3 The present invention provides a technical solution: a multi-PIN connector production mold, comprising: a lower module 1, with a support leg 2 fixedly installed at its lower end; an upper module 3, disposed on the upper end of the lower module 1; a mold closing assembly 6, connected to the upper module 3; a top plate 7, disposed inside the lower module 1; pin holes 8, equidistantly opened inside the top plate 7; and an ejector pin assembly 9, connected to the top plate 7. The upper module 3 is moved downwards to close with the lower module 1 when the mold closing assembly 6 is driven; the top plate 7 is moved upwards along the inner side of the lower module 1 when the ejector pin assembly 9 is driven, ejecting the workpiece.
[0029] The lower module 1 has a positioning groove 4 on its inner side, and a positioning block 5 is engaged with the inner side of the positioning groove 4. The positioning block 5 is fixedly installed at the bottom of the upper module 3. The mold closing assembly 6 includes a support frame 601, a servo motor 602, a first threaded rod 603, and a first threaded connector 604. The support frame 601 is fixedly connected to the outer side of the lower module 1, and the servo motor 602 is fixedly installed on the outer side of the support frame 601. The output end of the servo motor 602 passes through the inner side of the support frame 601, and the first threaded rod 603 is fixedly connected to the output end of the servo motor 602. The first threaded connector 604 is threadedly connected to the outer side of the first threaded rod 603. The mold closing assembly 6 also includes a guide rod 605 and a guide block 606. The guide rod 605 is fixedly installed on the inner side of the support frame 601, and the guide block 606 is slidably connected to the outer side of the guide rod 605. The mold closing assembly 6 also includes a connecting plate 607. The connecting plate 607 is fixedly installed on the outer side of the upper module 3, and the front and rear sides of the connecting plate 607 are respectively connected to the first threaded connector 604 and the guide block 606.
[0030] When the lower module 1 and the upper module 3 need to be molded together, this structure operates by running the servo motor 602, which drives the first threaded rod 603 to rotate. The rotation of the first threaded rod 603 causes the first threaded connector 604 connected to the outer thread to move up and down. Through the up and down movement of the first threaded connector 604, the upper module 3 connected to the connecting plate 607 moves downward and fits against the outside of the lower module 1 for mold closing. When the upper module 3 moves downward, the positioning block 5 at its bottom will insert into the inner side of the positioning groove 4. The insertion of the positioning groove 4 and the positioning block 5 improves the mold closing accuracy of the upper module 3 and the lower module 1, and avoids positional deviation during mold closing, which would affect the sealing of the inner mold cavity of the lower module 1 and the upper module 3.
[0031] Example 2: Figures 1-2 , Figures 4-6The present invention provides a technical solution: a multi-PIN connector production mold, which discloses that: the ejector assembly 9 includes a drive motor 901 and a first bevel gear 902, the drive motor 901 is fixedly installed at the bottom of the lower module 1, and the output end of the drive motor 901 is fixedly connected to the first bevel gear 902; the ejector assembly 9 also includes a second bevel gear 903, a second threaded rod 904, a second threaded connector 905, and a connecting frame 906, the second threaded rod 904 is rotatably connected to the inner side of the lower module 1, and the lower end of the second threaded rod 904 is fixedly connected to the inner side of the lower module 1. The first bevel gear 902 is meshed with the second bevel gear 903. The second threaded rod 904 is threadedly connected to the outer side of the second threaded connector 905, and the outer side of the second threaded connector 905 is fixedly connected to the connecting frame 906. The top of the connecting frame 906 is connected to the top plate 7. The ejector pin assembly 9 also includes a sliding rod 907 and a sliding groove 908. The sliding groove 908 is opened inside the lower module 1, and the sliding rod 907 is slidably connected to the inner side of the sliding groove 908. The tail end of the sliding rod 907 is fixedly connected to the outer side of the connecting frame 906.
[0032] After the workpiece inside the mold cavity is formed, the upper module 3 is moved upward, and then the drive motor 901 is activated. The output end of the drive motor 901 drives the first bevel gear 902 to rotate. The rotation of the first bevel gear 902 will drive the outer meshing second bevel gear 903 to rotate. The rotation of the second bevel gear 903 will drive the connected second threaded rod 904 to rotate inside the lower module 1. The rotation of the second threaded rod 904 will drive the outer threaded connector 905 to move upward, thereby driving the top plate 7 at the upper end of the connecting frame 906 to push out the formed workpiece inside the lower module 1, achieving the effect of easy demolding.
[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-pin connector manufacturing mold, comprising a lower module (1), wherein a support leg (2) is fixedly mounted on the lower end of the lower module (1), and an upper module (3), wherein the upper module (3) is disposed on the upper end of the lower module (1); characterized in that: Mold assembly (6), which is connected to the upper module (3); Top plate (7), the top plate (7) is disposed inside the lower module (1); Pinholes (8) are equidistantly opened on the inner side of the top plate (7); A ejector pin assembly (9) is connected to a top plate (7); wherein, Drive the mold closing assembly (6), and the upper module (3) moves downward to close the mold with the lower module (1); Drive the ejector pin assembly (9), and the top plate (7) moves upward along the inner side of the lower module (1) to eject the workpiece.
2. The multi-pin connector manufacturing mold according to claim 1, characterized in that: The lower module (1) has a positioning groove (4) on its inner side, and a positioning block (5) is engaged with the inner side of the positioning groove (4). The positioning block (5) is fixedly installed at the bottom of the upper module (3).
3. The multi-pin connector manufacturing mold according to claim 1, characterized in that: The mold assembly (6) includes a support frame (601), a servo motor (602), a first threaded rod (603), and a first threaded connector (604). The support frame (601) is fixedly connected to the outside of the lower module (1), and the servo motor (602) is fixedly installed on the outside of the support frame (601). The output end of the servo motor (602) passes through the inside of the support frame (601), and the output end of the servo motor (602) is fixedly connected to the first threaded rod (603). The first threaded rod (603) is threadedly connected to the outside of the first threaded connector (604).
4. A multi-pin connector manufacturing mold according to claim 3, characterized in that: The mold clamping assembly (6) further includes a guide rod (605) and a guide block (606). The guide rod (605) is fixedly installed on the inner side of the support frame (601), and the guide block (606) is slidably connected to the outer side of the guide rod (605).
5. A multi-pin connector manufacturing mold according to claim 4, characterized in that: The mold assembly (6) also includes a connecting plate (607), which is fixedly installed on the outside of the upper module (3), and the front and rear sides of the connecting plate (607) are respectively connected to the first threaded connector (604) and the guide block (606).
6. A multi-pin connector manufacturing mold according to claim 1, characterized in that: The ejector pin assembly (9) includes a drive motor (901) and a first bevel gear (902). The drive motor (901) is fixedly installed at the bottom of the lower module (1), and the output end of the drive motor (901) is fixedly connected to the first bevel gear (902).
7. A multi-pin connector manufacturing mold according to claim 6, characterized in that: The ejector pin assembly (9) further includes a second bevel gear (903), a second threaded rod (904), a second threaded connector (905), and a connecting frame (906). The second threaded rod (904) is rotatably connected to the inner side of the lower module (1), and the lower end of the second threaded rod (904) is fixedly connected to the second bevel gear (903). The second bevel gear (903) meshes with the first bevel gear (902). The outer side of the second threaded rod (904) is threadedly connected to the second threaded connector (905), and the outer side of the second threaded connector (905) is fixedly connected to the connecting frame (906). The top of the connecting frame (906) is connected to the top plate (7).
8. A multi-pin connector manufacturing mold according to claim 7, characterized in that: The ejector pin assembly (9) also includes a sliding rod (907) and a sliding groove (908). The sliding groove (908) is opened inside the lower module (1), and the sliding rod (907) is slidably connected to the inside of the sliding groove (908). The tail end of the sliding rod (907) is fixedly connected to the outside of the connecting frame (906).
Citation Information
Patent Citations
PIN injection molding device and method
CN113459395A