Injection molding jig for adapter plug

Abstract

The utility model provides an injection molding jig for an adapter plug. The injection molding jig comprises a positioning block, a positioning plate and a movable plate which are sequentially arranged from top to bottom, the upper end of the positioning block is provided with a cavity communicating with the outside, and the positioning block is further provided with a plurality of positioning holes penetrating through the bottom of the positioning block and communicating with the cavity. The positioning block is fixedly arranged on the positioning plate, a plurality of through holes communicated with the positioning holes are formed in the positioning plate, and a plurality of positioning rods are arranged on the upper end face of the positioning plate; a plurality of ejector rods and elastic pieces are arranged on the upper end face of the movable plate, the ejector rods extend into the through holes, and the lower end face of the positioning plate abuts against the upper ends of the elastic pieces; according to the injection molding jig, metal bars and other accessories can be installed on the positioning block in advance in the external space, then the whole injection molding jig is taken into an injection mold, the positioning rod is aligned with a preset hole position of the injection mold, and then the movable plate is pressed, so that the ejector rod ejects the metal bars installed on the positioning block into an installation hole of the injection mold.

Description

Technical Field

[0001] The utility model relates to the technical field of production of adapter plugs, in particular to an injection molding jig for adapter plugs. Background Art

[0002] Adapter plug is a power supply conversion device for small portable electronic devices and electronic appliances. It is generally composed of components such as housing, transformer, inductor, capacitor, control IC, PCB board and metal rod. Its working principle is to convert AC input into DC output. It can be divided into wall-mounted and desktop types according to the connection method. It is widely used in security cameras, set-top boxes, routers, light bars, massagers and other equipment.

[0003] During the manufacturing process of the adapter plug, the metal rod needs to be inserted into the injection mold first, and then the shell is injection molded through the injection molding process so that the metal rod and the shell are fixedly connected together; in the above manufacturing process, the production personnel are usually required to pick up a large number of metal rods one by one and then align them with the mounting holes in the injection mold and then insert them into the mounting holes of the injection mold. The injection mold is usually composed of an upper mold and a lower mold. When aligning and inserting the large number of metal rods into the injection mold, the workers can only operate in the narrow space between the upper mold and the lower mold, which will cause inconvenient operation. Utility Model Content

[0004] The utility model provides an injection molding jig for an adapter plug, aiming to improve the problem of inconvenient operation when production personnel insert a metal rod into an injection molding mold during the production process of the adapter plug.

[0005] To achieve the above object, the utility model adopts the following technical solution: an injection molding jig for an adapter plug, the injection molding jig for the adapter plug comprises a positioning block, a positioning plate and a movable plate arranged in sequence from top to bottom;

[0006] The upper end of the positioning block is provided with a cavity connected to the outside, and the positioning block is also provided with a plurality of positioning holes penetrating through the bottom thereof and connected to the cavity;

[0007] The positioning block is fixedly arranged on the positioning plate, the positioning plate is provided with a plurality of through holes communicating with the positioning holes, and the upper end surface of the positioning plate is provided with a plurality of positioning rods;

[0008] The upper end surface of the movable plate is provided with a plurality of push rods and elastic members, the push rods extend into the through holes, and the lower end surface of the positioning plate abuts against the upper end of the elastic member.

[0009] Furthermore, the elastic member includes a guide rod and a spring, the guide rod is fixed on the upper end surface of the movable plate, the spring is sleeved on the guide rod, the positioning plate is provided with a plurality of guide through holes, the guide rod extends into the guide through holes, and the upper end of the spring abuts against the lower end surface of the positioning plate.

[0010] Furthermore, the upper end of the positioning rod is provided with a chamfer.

[0011] Furthermore, eight positioning blocks are arranged on the positioning plate, one positioning block is provided with two positioning holes, sixteen through holes are arranged on the positioning plate, and sixteen ejector rods are arranged on the movable plate.

[0012] Furthermore, notches are provided at the centers of the movable plate and the positioning plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses an injection molding jig for an adapter plug, comprising a positioning block, a positioning plate and a movable plate which are arranged in sequence from top to bottom; a cavity which is communicated with the outside is formed at the upper end of the positioning block, and a plurality of positioning holes which penetrate the bottom of the positioning block and are communicated with the cavity are formed at the positioning block; the positioning block is fixedly arranged on the positioning plate, and a plurality of through holes which are communicated with the positioning holes are formed on the positioning plate, and a plurality of positioning rods are formed on the upper end surface of the positioning plate; a plurality of ejector rods and elastic members are formed on the upper end surface of the movable plate, and the ejector rods extend into the through holes, and the lower end surface of the positioning plate abuts against the upper end of the elastic member; the utility model can be externally mounted. The metal rods and other accessories are pre-installed on the positioning block, and then the entire injection molding jig is taken into the injection mold, and then the positioning rod is aligned with the preset hole position of the injection mold, and then the movable plate is pressed to make the push rod push the metal rod installed on the positioning block into the mounting hole of the injection mold; in this way, the production personnel do not need to pick up many metal rods and other accessories to the narrow space between the upper mold and the lower mold of the injection mold, and then align the metal rods and other accessories with the injection mold one by one and then insert them into the mounting hole of the injection mold. The utility model has a simple structure and can facilitate the production operation of the production personnel, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is an explosion schematic diagram of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the metal rod and the connector of the utility model.

[0019] Main component symbols

[0020] 1. Positioning block; 11. Cavity; 12. Positioning hole; 2. Positioning plate; 21. Positioning rod; 22. Guide through hole; 3. Movable plate; 31. Push rod; 32. Elastic member; 321. Guide rod; 322. Spring; a. Metal rod; b. Connector. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] Example

[0025] like Figure 1-Figure 3 As shown, the utility model provides an injection molding jig of an adapter plug, the adapter plug includes a metal rod a and a connector b connected to the metal rod a, the connector b is located in the middle of the metal rod a, and the injection molding jig of the adapter plug includes a positioning block 1, a positioning plate 2 and a movable plate 3 arranged in sequence from top to bottom; the upper end of the positioning block 1 is provided with a cavity 11 connected to the outside, and the positioning block 1 is also provided with a plurality of positioning holes 12 that pass through its bottom and are connected to the cavity 11; the positioning block 1 is fixedly arranged on the positioning plate 2, the positioning plate 2 is provided with a plurality of through holes connected to the positioning holes 12, and the upper end surface of the positioning plate 2 is provided with a plurality of positioning rods 21; the upper end surface of the movable plate 3 is provided with a plurality of ejector rods 31 and an elastic member 32, the ejector rods 31 extend into the through holes, and the lower end surface of the positioning plate 2 abuts against the upper end of the elastic member 32.

[0026] The working principle of the utility model is that the production personnel pre-place the metal rod a and the connector b of the adapter plug on the positioning block 1, wherein one end of the metal rod a is inserted into the positioning hole 12 of the positioning block 1, the connector b is located in the cavity 11 of the positioning block 1, and the other end of the metal rod a is located outside the positioning block 1; further, the production personnel take the whole set of injection molding jigs to the injection mold, and then align the positioning rod 21 with the preset hole of the injection mold, and then press the movable plate 3 to make the push rod 31 push the metal rod a mounted on the positioning block 1 into the mounting hole of the injection mold; it should be mentioned that the metal rod a and the mounting hole of the injection mold are interference fit; after the metal rod a is fully inserted into the injection mold, the whole set of injection molding jigs is removed, and the pressed elastic member 32 rebounds to lift the positioning plate 2, and the push rod 31 also withdraws from the positioning hole 12; then the production personnel re-install a new batch of metal rods a and connector b on the positioning block 1.

[0027] In a preferred embodiment, the elastic member 32 includes a guide rod 321 and a spring 322. The guide rod 321 is fixed to the upper end surface of the movable plate 3, and the spring 322 is sleeved on the guide rod 321. The positioning plate 2 is provided with a plurality of guide through holes 22. The guide rod 321 extends into the guide through hole 22, and the upper end of the spring 322 abuts against the lower end surface of the positioning plate 2. In this embodiment, the guide rod 321 and the guide through hole 22 can play a positioning role for the positioning plate 2, the movable plate 3 and the spring 322. The elastic action of the spring 322 can control the distance between the movable plate 3 and the positioning plate 2 and reset it. At the same time, it can also make the top rod 31 located in the positioning hole 12 withdraw from the positioning hole 12 to make way for the metal rod a installed in the positioning hole 12.

[0028] In a preferred embodiment, the upper end of the positioning rod 21 is provided with a chamfer, which can facilitate the insertion of the positioning rod 21 into the injection mold.

[0029] In a preferred embodiment, eight positioning blocks 1 are provided on the positioning plate 2, one positioning block 1 is provided with two positioning holes 12, the positioning plate 2 is provided with sixteen through holes, and the movable plate 3 is provided with sixteen push rods 31; in this embodiment, the two sides of the connector b are respectively connected to a metal rod a, and the two metal rods a are correspondingly inserted into the two positioning holes 12, and the sixteen push rods 31 can simultaneously pass through the through holes of the positioning plate 2 and extend into the positioning holes 12 to push the metal rods a into the injection mold, so that multiple metal rods a and connectors b can be loaded into the injection mold at one time, which is efficient.

[0030] In a preferred embodiment, a notch is provided at the center of the movable plate 3 and the positioning plate 2. The notch serves to reduce the weight of the entire set of injection molding jigs, making it easier for production personnel to take and place them.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An injection molding jig for an adapter plug, characterized in that: The injection molding jig of the adapter plug includes a positioning block, a positioning plate and a movable plate which are arranged in sequence from top to bottom; The upper end of the positioning block is provided with a cavity connected to the outside, and the positioning block is also provided with a plurality of positioning holes penetrating through the bottom thereof and connected to the cavity; The positioning block is fixedly arranged on the positioning plate, the positioning plate is provided with a plurality of through holes communicating with the positioning holes, and the upper end surface of the positioning plate is provided with a plurality of positioning rods; The upper end surface of the movable plate is provided with a plurality of push rods and elastic members, the push rods extend into the through holes, and the lower end surface of the positioning plate abuts against the upper end of the elastic member.

2. The injection molding jig of the adapter plug according to claim 1, characterized in that: The elastic member includes a guide rod and a spring. The guide rod is fixed on the upper end surface of the movable plate. The spring is sleeved on the guide rod. The positioning plate is provided with a plurality of guide through holes. The guide rod extends into the guide through holes. The upper end of the spring abuts against the lower end surface of the positioning plate.

3. The injection molding jig of the adapter plug according to claim 1, characterized in that: The upper end of the positioning rod is provided with a chamfer.

4. The injection molding jig of the adapter plug according to claim 1, characterized in that; The positioning plate is provided with eight positioning blocks, one positioning block is provided with two positioning holes, the positioning plate is provided with sixteen through holes, and the movable plate is provided with sixteen ejector rods.

5. The injection molding jig of the adapter plug according to claim 1, characterized in that; Notches are provided at the centers of the movable plate and the positioning plate.

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