A power cord plug injection mold

Abstract

The utility model discloses an injection mold for a power cord plug, comprising an upper mold and a lower mold working in cooperation with the upper mold, wherein the top of the lower mold and the bottom of the upper mold are both provided with plug-shaped grooves, the top of the upper mold is fixedly connected to a hydraulic rod, the other end of the hydraulic rod is connected to a hydraulic cylinder and is controlled by the hydraulic cylinder to be lifted up and down, and a reserved hole connected to an inner cavity of the lower mold is provided, which relates to the technical field of injection molds, and a reserved hole connected to an injection molding inner cavity is provided on the lower mold, and a hole-opening component is provided to drive a hole-opening sheet into the injection molding inner cavity of the lower mold, so that after the plug is formed, a hole position for inserting a pin will be provided on the plug, so that the two processes of injection molding and hole-opening become one process, thereby improving the processing efficiency of the plug; the hole-opening component is also controlled by the hydraulic cylinder, so that the hole-opening component is synchronously driven during mold closing and demoulding, so that it is convenient to use and has a simple device structure.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for a power cord plug. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding processing fields such as products with complex shapes. At a certain temperature, the completely molten plastic material is stirred by a screw, injected into the mold cavity with high pressure, and cooled and solidified to obtain a molded product. This method is suitable for mass production of parts with complex shapes and is one of the important processing methods.

[0003] The existing injection mold for power cord plug, when processing the power cord plug, first performs injection molding, and then takes out the power cord plug molded in the lower mold; then, fixes the molded plug with fixed furniture, and then uses a punching device to open a pin hole on the power cord plug for the pin to be inserted; therefore, the existing injection mold for power cord plug does not have the function of punching the molded power cord plug, resulting in a complex and cumbersome processing process for the plug, which reduces production efficiency. Utility Model Content

[0004] In view of the problems existing in the existing injection mold of a power cord plug, the utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide an injection mold for a power cord plug, which solves the problem that when processing the power cord plug, the existing injection mold for the power cord plug is firstly injection molding, and then the power cord plug molded in the lower mold is taken out; thereafter, the molded plug is fixed by fixing furniture, and then a punching device is used to open a pin hole on the power cord plug for the pin to be inserted; therefore, the existing injection mold for the power cord plug does not have the function of punching the molded power cord plug, resulting in a problem that the processing process of the plug is complicated and reduced production efficiency.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A power cord plug injection mold comprises an upper mold and a lower mold working together with the upper mold, wherein the top of the lower mold and the bottom of the upper mold are both provided with plug-shaped grooves, the top of the upper mold is fixedly connected to a hydraulic rod, the other end of the hydraulic rod is connected to a hydraulic cylinder and is controlled by the hydraulic cylinder to move up and down, a reserved hole connected to the inner cavity of the lower mold is opened, and a hole opening component for opening a hole in the molded plug is also included.

[0008] As a preferred solution of the injection mold of a power cord plug described in the utility model, the lower mold is installed on a support table, a U-shaped bracket is fixedly installed on the top of the support table, the hydraulic cylinder is installed on the bracket, and the lower mold is located directly below the upper mold.

[0009] As a preferred solution of the injection mold of a power cord plug described in the utility model, wherein: the hole-opening component includes an L-shaped support rod detachably mounted on a hydraulic rod, the outer wall of the bottom end of the L-shaped support rod is provided with teeth, the L-shaped support rod is connected to a gear through the teeth meshing, the gear is fixedly mounted on a threaded rod, the threaded rod is rotatably connected to a support column through a bearing, the support column is welded to a support platform, an internally threaded tube is threadedly connected to the threaded rod, a support plate is welded to the end of the internally threaded tube, a hole-opening sheet is welded to the support plate, the bottom of the internally threaded tube is slidably connected to a guide rod, and the guide rod is detachably mounted on the support column.

[0010] As a preferred solution of the injection mold of a power cord plug described in the utility model, wherein: a sleeve ring is welded to the top end of the L-shaped support rod, the sleeve ring is sleeved on the hydraulic rod, and the hydraulic rod and the sleeve ring are fixed by bolts.

[0011] As a preferred solution of the injection mold of a power cord plug described in the utility model, a fixing block is welded at the bottom of the internal threaded tube, a through hole for the guide rod to pass through is opened on the fixing block, and the inner wall of the through hole is slidably connected to the guide rod.

[0012] As a preferred solution of the injection mold of a power cord plug described in the utility model, wherein: a first support connecting seat is welded on the support column, the right end of the guide rod is inserted into the first support connecting seat, and the first support connecting seat and the guide rod are fixed by bolts.

[0013] As a preferred solution of the injection mold of a power cord plug described in the utility model, it also includes a stabilizing beam slidably connected to the L-shaped support rod, and the two ends of the stabilizing beam are detachably connected to the U-shaped bracket.

[0014] As a preferred solution of the injection mold of a power cord plug described in the utility model, wherein: a second support connecting seat is welded on the inner wall of the U-shaped bracket, the two ends of the stabilizing beam are respectively inserted into the second support connecting seat, and the second support connecting seat and the stabilizing beam are fixed by bolts.

[0015] Compared with existing technologies:

[0016] 1. A reserved hole connected to the injection molding cavity is opened on the lower mold, and a hole opening component is provided to drive the hole opening piece into the injection molding cavity of the lower mold. When the plug is formed, there will be a hole for the pin to be inserted on the plug, so that the two processes of injection molding and hole opening become one process, thereby improving the processing efficiency of the plug;

[0017] 2. The hole opening component is also controlled by a hydraulic cylinder, so that the hole opening component is driven synchronously during mold closing and demoulding, so it is easy to use and has a simple device structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure provided by the utility model;

[0019] Figure 2 A top view of the lower mold provided by the utility model;

[0020] Figure 3 An enlarged view of the opening assembly provided by the utility model;

[0021] Figure 4 This is a top view of the perforated sheet and the support plate provided by the utility model.

[0022] In the figure: support platform 1, bracket 2, lower mold 3, reserved hole 31, hydraulic cylinder 4, hydraulic rod 41, L-shaped support rod 5, sleeve ring 51, second support connecting seat 6, stabilizing beam 7, upper mold 8, perforated sheet 9, support plate 91, guide rod 10, internal threaded tube 11, fixing block 111, support column 12, threaded rod 13, L-shaped stabilizing rod 14, gear 15, first support connecting seat 16. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] The utility model provides an injection mold for a power cord plug. Figure 1-4 , including an upper mold 8 and a lower mold 3 working therewith, a plug-shaped groove is provided on the top of the lower mold 3 and the bottom of the upper mold 8, the top of the upper mold 8 is fixedly connected to a hydraulic rod 41, the other end of the hydraulic rod 41 is connected to a hydraulic cylinder 4 and is controlled by the hydraulic cylinder 4 to move up and down, and a reserved hole 31 connected to its inner cavity is opened on the lower mold 3; the lower mold 3 and the upper mold 8 are both existing molds for injection molding of plugs, which will not be described in detail here. The present application only opens a reserved hole 31 on the basis of the existing lower mold, and also includes a hole opening component for opening a hole in the molded plug.

[0025] The lower mold 3 is installed on the support platform 1 , a U-shaped bracket 2 is fixedly installed on the top of the support platform 1 , a hydraulic cylinder 4 is installed on the bracket 2 , and the lower mold 3 is located directly below the upper mold 8 .

[0026] The hole-opening assembly includes an L-shaped support rod 5 detachably mounted on the hydraulic rod 41, and teeth are provided on the outer wall of the bottom end of the L-shaped support rod 5. The L-shaped support rod 5 is connected to the gear 15 through the teeth meshing, and the gear 15 is fixedly mounted on the threaded rod 13. The threaded rod 13 is rotatably connected to the support column 12 through a bearing. In order to enhance the stability of the threaded rod 13, an L-shaped stabilizing rod 14 is welded on the right side of the support platform 1. The L-shaped stabilizing rod 14 and the threaded rod 13 are rotatably connected through a bearing. The support column 12 is welded on the support platform 1, and an internal threaded tube 11 is threadedly connected to the threaded rod 13. A support plate 91 is welded to the end of the internal threaded tube 11, and a hole-opening sheet 9 is welded to the support plate 91. The bottom of the internal threaded tube 11 is slidably connected to a guide rod 10, and the guide rod 10 is detachably mounted on the support column 12; after the mold is closed, the hole-opening sheet 9 is located in the inner cavity of the lower mold, so that after the plug is formed, the hole-opening sheet 9 is pulled out, and the plug has a hole position for inserting the pin.

[0027] A sleeve ring 51 is welded to the top end of the L-shaped support rod 5 . The sleeve ring 51 is sleeved on the hydraulic rod 41 , and the hydraulic rod 41 and the sleeve ring 51 are fixed by bolts.

[0028] A fixing block 111 is welded to the bottom of the internal threaded tube 11 . A through hole is formed on the fixing block 111 for the guide rod 10 to pass through. The inner wall of the through hole is slidably connected to the guide rod 10 .

[0029] A first support connection seat 16 is welded to the support column 12 , the right end of the guide rod 10 is inserted into the first support connection seat 16 , and the first support connection seat 16 and the guide rod 10 are fixed by bolts.

[0030] It also includes a stabilizing beam 7 that is slidably connected to the L-shaped support rod 5. Specifically, a through hole is opened on the stabilizing beam 7 for the L-shaped support rod 5 to pass through, and the inner wall of the through hole is slidably connected to the L-shaped support rod 5. Both ends of the stabilizing beam 7 are detachably connected to the U-shaped bracket 2. Specifically, a second support connecting seat 6 is welded on the inner wall of the U-shaped bracket 2, and both ends of the stabilizing beam 7 are respectively inserted into the second support connecting seat 6, and the second support connecting seat 6 and the stabilizing beam 7 are fixed by bolts.

[0031] During specific use, the hydraulic cylinder 4 controls the extension of the hydraulic rod 41 to drive the upper mold 8 to descend until the mold is closed with the lower mold 3; at the same time, the hydraulic rod 41 drives the L-shaped support rod 5 to descend, thereby driving the threaded rod 13 to rotate, thereby driving the internal threaded tube 11 to move, and the internal threaded tube 11 drives the perforated sheet 9 to enter the reserved hole 31 and extend into the inner cavity of the lower mold 3; after injection molding and cooling; the hydraulic cylinder 4 controls the hydraulic rod 41 to contract and drive the upper mold 8 to rise to complete demoulding, and at the same time, the L-shaped support rod 5 drives the threaded rod 13 to rotate in the opposite direction, and the internal threaded tube 11 drives the perforated sheet 9 to move out of the inner cavity of the lower mold 3, so that the molded plug has a hole for the pin to be inserted.

[0032] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An injection mold for a power cord plug, comprising an upper mold (8) and a lower mold (3) working in cooperation therewith, wherein the top of the lower mold (3) and the bottom of the upper mold (8) are both provided with a plug-shaped groove, the top of the upper mold (8) is fixedly connected to a hydraulic rod (41), the other end of the hydraulic rod (41) is connected to a hydraulic cylinder (4) and is controlled by the hydraulic cylinder to move up and down, characterized in that: The lower mold (3) is provided with a reserved hole (31) communicating with its inner cavity, and also includes a hole-opening component for opening a hole in the molded plug.

2. The injection mold for a power cord plug according to claim 1, characterized in that: The lower mold (3) is mounted on a support platform (1), a U-shaped bracket (2) is fixedly mounted on the top of the support platform (1), the hydraulic cylinder (4) is mounted on the bracket (2), and the lower mold (3) is located directly below the upper mold (8).

3. The injection mold for a power cord plug according to claim 1, characterized in that: The hole-opening assembly comprises an L-shaped support rod (5) detachably mounted on a hydraulic rod (41); teeth are provided on the outer wall of the bottom end of the L-shaped support rod (5); the L-shaped support rod (5) is connected to a gear (15) through the teeth meshing; the gear (15) is fixedly mounted on a threaded rod (13); the threaded rod (13) is rotatably connected to a support column (12) through a bearing; the support column (12) is welded to a support platform (1); an internal threaded tube (11) is threadedly connected to the threaded rod (13); a support plate (91) is welded to the end of the internal threaded tube (11); a hole-opening sheet (9) is welded to the support plate (91); a guide rod (10) is slidably connected to the bottom of the internal threaded tube (11); the guide rod (10) is detachably mounted on the support column (12).

4. The injection mold for a power cord plug according to claim 3, characterized in that: A sleeve ring (51) is welded to the top end of the L-shaped support rod (5), the sleeve ring (51) is sleeved on the hydraulic rod (41), and the hydraulic rod (41) and the sleeve ring (51) are fixed by bolts.

5. The injection mold for a power cord plug according to claim 3, characterized in that: A fixing block (111) is welded to the bottom of the internally threaded tube (11), and a through hole for the guide rod (10) to pass through is provided on the fixing block (111), and the inner wall of the through hole is slidably connected to the guide rod (10).

6. The injection mold for a power cord plug according to claim 3, 4 or 5, characterized in that: A first support connection seat (16) is welded on the support column (12), the right end of the guide rod (10) is inserted into the first support connection seat (16), and the first support connection seat (16) and the guide rod (10) are fixed by bolts.

7. The injection mold for a power cord plug according to claim 6, characterized in that: It also comprises a stabilizing beam (7) slidably connected to the L-shaped support rod (5), and both ends of the stabilizing beam (7) are detachably connected to the U-shaped bracket (2).

8. The injection mold for a power cord plug according to claim 7, characterized in that: A second support connection seat (6) is welded on the inner wall of the U-shaped bracket (2), and both ends of the stabilizing beam (7) are respectively inserted into the second support connection seat (6), and the second support connection seat (6) and the stabilizing beam (7) are fixed by bolts.

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