Charger pin molding injection mold

Abstract

The utility model relates to the technical field of injection molds, in particular to a charger pin molding injection mold which comprises an upper mold and a lower mold which are provided with a molding cavity and a runner, the top of the upper mold is provided with a pouring gate, the top of the lower mold is provided with a handle groove, and the upper end of the handle groove is communicated with the runner. A clamping mechanism is arranged in the upper mold, the clamping mechanism and the jacking mechanism are arranged, the fixing rod and the pin base are clamped and jacked up in the mold opening process, the fixing rod and the pin base are made to ascend along with the upper mold, a forming cavity of the lower mold is emptied, a runner is emptied, and therefore new hardware pins can be conveniently placed. And a formed handle can be conveniently clamped to complete discharging, a pin base is taken down while a new hardware pin is placed, feeding and discharging are carried out at the same time, and the production efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold for molding charger plugs. Background Technology

[0002] Existing charger plugs require a plug holder to be installed on the outside of the processed metal plug during production. The plug holder is used to fix the plug to the charger by means of snap-fit ​​or other installation methods. The plug holder is generally directly molded onto the metal plug by injection molding, which requires the use of injection molds.

[0003] In existing pin injection molding technology, a typical example is a metal and plastic pin molding injection mold disclosed in CN216635255U, which includes an upper mold, a lower mold, a mold base, and an ejector pin assembly. The mold base has a receiving groove in the middle. When the mold is opened, the injection assembly opens obliquely outward relative to the pin seat, and the gap between the injection assembly and the injection-molded pin seat increases accordingly. This can effectively avoid scratching the pin seat hardware, which helps to ensure product quality and improve product yield.

[0004] However, in actual use, after the upper mold rises and opens, the formed pins are left in the lower mold. The formed pins in the lower mold need to be removed before the metal pins can be placed in the forming cavity for the next forming. The removal of the formed pins and the placement of the metal pins to be formed in the next forming cannot be done at the same time, which affects the improvement of production efficiency. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, such as the inability to simultaneously remove the molded pin and place the metal pin to be molded in the next step, and to propose a charger pin molding injection mold.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a charging plug molding injection mold, including an upper mold and a lower mold with a molding cavity and a runner, wherein the top of the upper mold has a sprue and the top of the lower mold has a handle groove, and the upper end of the handle groove is connected to the runner.

[0008] The upper mold is equipped with a clamping mechanism inside, and the clamping mechanism is located on both sides of the sprue;

[0009] The lower mold is equipped with a lifting mechanism located at the bottom of the forming cavity.

[0010] Furthermore, the clamping mechanism includes a pair of mounting holes opened on both sides of the sprue and connected to the sprue, and clamping columns are slidably installed in the mounting holes. A pair of cylinders are fixedly installed on both sides of the upper mold, and the telescopic rods of the pair of cylinders are respectively inserted into the pair of mounting holes and respectively fixedly connected to the pair of clamping columns.

[0011] Furthermore, the lifting mechanism includes a plurality of ejector pin holes formed at the bottom of a plurality of molding cavities, and ejector pins are inserted into the interior of the plurality of ejector pin holes respectively, and a lifting structure is provided at the bottom of the plurality of ejector pin holes.

[0012] Furthermore, the lifting structure includes a cavity opened in the lower mold, and the upper end of the cavity is connected to several ejector pin holes. A lifting plate is slidably installed inside the cavity, and several ejector pins are fixedly connected to the top of the lifting plate. A pressing structure and a spring sheet are respectively fixed at the upper and lower ends of the lifting plate, and the bottom of the spring sheet abuts against the lower mold.

[0013] Furthermore, the pressing structure includes a top hole opened at the top of the lower mold and connected to the cavity at the lower end, and a pressure column is inserted into the top hole, with a lifting plate fixedly connected to the bottom of the pressure column.

[0014] Furthermore, the gating channel and the handle groove are respectively circular holes that are narrower at the top and wider at the bottom, and wider at the top and narrower at the bottom.

[0015] The present invention provides an injection mold for molding charger plugs, which has the following advantages: by setting a clamping mechanism and a lifting mechanism, the fixing rod and the plug seat are clamped and lifted respectively when the mold is opened, so that they rise with the upper mold, the molding cavity and runner of the lower mold are cleared to place new hardware plugs, and the handle groove is set to facilitate the clamping of the molded handle to complete the unloading. The plug seat is removed while the new hardware plug is placed, and the loading and unloading are carried out simultaneously, which makes the production efficiency higher. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the external structure of this utility model;

[0018] Figure 3 This is a side sectional view of the present invention;

[0019] Figure 4 This is a front cross-sectional view of the present invention.

[0020] In the diagram: 1. Upper mold; 2. Lower mold; 3. Molding cavity; 4. Runner; 5. Sprue; 6. Handle groove; 7. Clamping mechanism; 71. Mounting hole; 72. Clamping post; 73. Cylinder; 8. Lifting mechanism; 81. Ejector pin hole; 82. Ejector pin; 83. Lifting structure; 831. Cavity; 832. Lifting plate; 833. Pressing structure; 8331. Top hole; 8332. Pressing post; 834. Spring; 9. Hardware pin; 10. Pin seat; 11. Connecting part; 12. Fixing rod; 13. Handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 As an embodiment of this utility model, a charger plug molding injection mold is disclosed, including an upper mold 1 and a lower mold 2 with a molding cavity 3 and a runner 4. The top of the upper mold 1 is provided with a sprue 5, and the top of the lower mold 2 is provided with a handle groove 6, and the upper end of the handle groove 6 is connected to the runner 4.

[0023] During use, the upper mold 1 descends and closes with the lower mold 2, so that the bottom of the upper mold 1 and the top of the lower mold 2 merge the molding cavity 3 and the runner 4 and connect with the sprue 5. The molten plastic enters the runner 4 through the sprue 5 and finally flows into several pairs of molding cavities 3 and handle grooves 6. Several pin seats 10, connecting parts 11, fixing rods 12 and handles 13 are integrally formed on the surface of the hardware pins 9 in the molding cavity 3, in the runner 4, in the sprue 5 and in the handle groove 6.

[0024] The upper mold 1 is provided with a clamping mechanism 7 inside, and the clamping mechanism 7 is located on both sides of the sprue 5;

[0025] The lower mold 2 is equipped with a lifting mechanism 8, which is located at the bottom of the forming cavity 3;

[0026] Before the mold is opened, the clamping mechanism 7 clamps and fixes the fixing rod 12, thereby fixing the hardware pin 9 and several integrally formed pin seats 10, connecting parts 11, fixing rod 12 and handle 13 to the bottom of the upper mold 1.

[0027] During the mold opening process, as the upper mold 1 rises, in the initial stage of the rise, the lifting mechanism 8 lifts the pin seat 10, causing the connecting part 11 and the handle 13 to disengage from the lower mold 2.

[0028] After the mold is opened, the feeding mechanism puts several pairs of metal pins 9 into the forming cavity 3 of the lower mold 2. At the same time, the feeding mechanism clamps the handle 13 through the mechanical claw and other feeding mechanisms, and releases the clamping mechanism 7 from the handle 13. The handle 13 is then pulled down and removed, and then the next mold closing and injection molding is performed.

[0029] Specifically, in this embodiment, the clamping mechanism 7 includes a pair of mounting holes 71 opened on both sides of the sprue 5 and connected to the sprue 5, and a clamping column 72 is slidably installed in the mounting holes 71. A pair of cylinders 73 are fixedly installed on both sides of the upper mold 1, and the telescopic rods of the pair of cylinders 73 are respectively inserted into the pair of mounting holes 71 and respectively fixedly connected to the pair of clamping columns 72.

[0030] During the mold opening process, steam is injected into a pair of cylinders 73 to simultaneously push a pair of clamping columns 72 closer together, so that the two clamping columns 72 clamp and fix the fixed rod 12. When unloading, a pair of cylinders 73 drive the pair of clamping columns 72 away, releasing the clamping and fixing of the fixed rod 12.

[0031] Specifically, in this embodiment, the lifting mechanism 8 includes a plurality of ejector pin holes 81 opened at the bottom of a plurality of molding cavities 3, and ejector pins 82 are respectively inserted into the interior of the plurality of ejector pin holes 81, and a lifting structure 83 is provided at the bottom of the plurality of ejector pin holes 81.

[0032] During the mold opening process, several pins located in several molding cavities 3 correspond one-to-one with each other. Each ejector pin hole 81 automatically rises and lifts up the corresponding pin seat 10.

[0033] Furthermore, in order to control the lifting of the ejector pin holes 81, the lifting structure 83 includes a cavity 831 opened in the lower mold 2, and the upper end of the cavity 831 is connected to a plurality of ejector pin holes 81. A lifting plate 832 is slidably installed inside the cavity 831, and a plurality of ejector pins 82 are fixedly connected to the top of the lifting plate 832. A pressing structure 833 and a spring sheet 834 are respectively fixed at the upper and lower ends of the lifting plate 832, and the bottom of the spring sheet 834 abuts against the lower mold 2.

[0034] When the mold is opened, the upper mold 1 disengages from the pressure column 8332, and under the action of the spring sheet 834, the lifting plate 832 drives the pressure column 8332 and several ejector pin holes 81 to rise, lifting the formed pin seat 10.

[0035] Furthermore, in order to more easily retract the ejector pin 82 by pressing down the lifting plate 832 while the mold is closed, the pressing structure 833 includes a top hole 8331 opened at the top of the lower mold 2 and connected to the cavity 831 at the lower end, and a pressure column 8332 is inserted into the top hole 8331, and the bottom of the pressure column 8332 is fixedly connected to the lifting plate 832.

[0036] During mold closing, without the need for an additional drive structure, the descending upper mold 1 can use the downward pressure column 8332 to drive the lifting plate 832 down and compress the spring sheet 834. At the same time, the lifting plate 832 drives several ejector pin holes 81 down to completely retract the ejector pin holes 81, which facilitates injection molding.

[0037] Based on the above embodiments, the sprue 5 and the handle groove 6 are respectively round holes with a narrow top and a wide bottom, and a wide top and a narrow bottom, respectively; the round hole sprue 5 with a narrow top and a wide bottom facilitates pulling the fixing rod 12 out downwards, and the round hole 6 with a wide top and a narrow bottom facilitates pulling the handle 13 out upwards.

[0038] In summary, during mold opening, the cylinder 73 drives a pair of clamping columns 72 to approach and clamp the fixing rod 12, so that the hardware pin 9, the formed pin seats 10, the connecting part 11, the fixing rod 12 and the handle 13 rise with the upper mold 1, thereby clearing the forming cavity 3 and the runner 4 of the lower mold 2 so that the formed pin seats 10 and the new hardware pin 9 can be placed at the same time, and the loading and unloading are completed simultaneously. By setting the handle groove 6, it is convenient to clamp the formed handle 13 to complete the unloading.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A charger pin forming injection mold, comprising an upper mold (1) and a lower mold (2) with a forming cavity (3) and a flow channel (4), and a top of the upper mold (1) is provided with a sprue (5), characterized in that: The top of the lower mold (2) is provided with a handle slot (6), and the upper end of the handle slot (6) is communicated with the flow channel (4); The inside of the upper mold (1) is provided with a clamping mechanism (7), and the clamping mechanism (7) is located on both sides of the gate (5); The inside of the lower mold (2) is provided with a lifting mechanism (8), and the lifting mechanism (8) is arranged at the bottom of the molding cavity (3).

2. The charger prong forming injection mold of claim 1, wherein: The clamping mechanism (7) includes a pair of mounting holes (71) arranged on both sides of the gate (5) and communicated with the gate (5), and a clamping column (72) is slidably arranged in the mounting hole (71); a pair of air cylinders (73) are fixedly arranged on both sides of the upper mold (1), and the telescopic rods of the pair of air cylinders (73) are respectively inserted into the pair of mounting holes (71) and respectively fixedly connected with the pair of clamping columns (72).

3. The charger prong forming injection mold of claim 1, wherein: The lifting mechanism (8) includes a plurality of ejector pin holes (81) arranged at the bottom of the plurality of molding cavities (3), respectively, and a plurality of ejector pins (82) are respectively inserted into the plurality of ejector pin holes (81); the bottom of the plurality of ejector pin holes (81) is provided with a lifting structure (83).

4. The charger prong forming injection mold of claim 3, wherein: The lifting structure (83) includes a cavity (831) arranged in the lower mold (2), and the upper end of the cavity (831) is communicated with the plurality of ejector pin holes (81); a lifting plate (832) is slidably arranged in the cavity (831), and the top of the lifting plate (832) is fixedly connected with the plurality of ejector pins (82); a pressing structure (833) and a spring sheet (834) are respectively arranged at the upper and lower ends of the lifting plate (832), and the bottom of the spring sheet (834) abuts against the lower mold (2).

5. The charger prong forming injection mold of claim 4, wherein: The pressing structure (833) includes a top hole (8331) arranged at the top of the lower mold (2) and communicated with the cavity (831), and a pressing column (8332) is inserted into the top hole (8331); the bottom of the pressing column (8332) is fixedly connected with the lifting plate (832).

6. The charger prong forming injection mold of claim 1, wherein: The gate (5) and the handle slot (6) are circular holes with upper thin and lower thick and upper thick and lower thin, respectively.

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