Injection mold for injection molding part

Abstract

The utility model discloses an injection mold for injection molded parts, which belongs to the field of injection molding and comprises a support plate, a vertical support fixedly connected to the upper top end of the support plate, an ejection component arranged at the upper top end of the vertical support, a fixing plate fixedly connected to the upper top end of the vertical support, and an electric push rod fixedly connected to the upper top end of the fixing plate. Through cooperative use of all the devices, a mold subjected to injection molding can be stably and effectively ejected out, when injection molding is completed and an upper mold is lifted, an ejector rod in a hydraulic pipe is driven to ascend, liquid in a closed pipeline is extruded, so that an ejector rod at the other end drives a lower mold to ascend, and an object is ejected out; and meanwhile, in the ejection process, the liquid in the cooling pipe is driven to flow through the low temperature of the liquid, then the cooling effect of the cooling pipe is improved, in cooperation with secondary jacking of the lifting assembly, an operator can conveniently and rapidly take out objects, and the injection molding production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically an injection mold for injection molded parts. Background Technology

[0002] Injection molding is a plastic forming process with high production efficiency. It can achieve automated production, producing a large number of plastic products in a short time, making it suitable for large-scale production. It also offers high precision, producing plastic products with high dimensional accuracy and repeatability, meeting the production requirements of various precision parts and demonstrating strong adaptability.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN222223372U) discloses an injection mold for injection molded parts, comprising a base plate, a lower mold fixedly connected to the top of the base plate, a mold groove formed on the top of the lower mold, two fixed posts symmetrically fixedly connected to the top of the base plate, a top plate fixedly connected to the top of the two fixed posts, an electric telescopic rod fixedly connected to the top of the top plate, a lifting plate fixedly connected to the driving end of the electric telescopic rod through the top of the top plate, and an upper mold fixedly connected to the bottom of the lifting plate; the lifting assembly includes a lifting plate movably fitted to the bottom of the mold groove, and a lifting mechanism slidably inserted into the bottom of the mold groove fixedly connected to the bottom of the lifting plate. This utility model, by moving the driving end of the electric telescopic rod upward after the injection molded part is formed, can automatically move the lifting plate upward, thus ejecting the injection molded part from the lower mold, achieving rapid unloading of the injection molded part and improving work efficiency.

[0004] Although the aforementioned patent uses a top plate, electric telescopic rod, and pipe to push the object out by the air in the pipe through the operation of the electric push rod, it only uses compressed air to lift the lower mold. Since air is compressible, after repeated use or when the injection molded object is heavy, it may not be able to lift the object reasonably well. Manual assistance is still required to remove the object, which increases the labor intensity of the operators and is not conducive to improving the production efficiency of the mold.

[0005] Therefore, this utility model provides an injection mold for injection molded parts to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides an injection mold for injection molded parts, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] An injection mold for injection molded parts includes a support plate, a vertical support is fixedly connected to the upper top end of the support plate, and an ejection assembly is provided at the upper top end of the vertical support.

[0011] The ejection assembly includes a fixed plate fixedly connected to the top end of a support, an electric push rod fixedly connected to the top end of the fixed plate, an upper mold fixedly sleeved at the output end of the electric push rod, an injection box fixedly connected to the top end of the support plate, a lower mold slidably connected to the inner wall of the injection box, a hydraulic pipe fixedly connected to the side wall of the injection box, and a push rod slidably connected to the inner wall of the hydraulic pipe. One of the push rods is fixedly connected to the bottom end of the lower mold, a stop block is fixedly connected to the side wall of the upper mold, and the end of the other push rod is fixedly connected to the top end of the stop block.

[0012] As a preferred technical solution of this application, the ejection assembly further includes a cooling pipe fixedly connected to the bottom end of the lower mold, the end of the cooling pipe being fixedly connected to the side wall of the hydraulic pipe, and a lifting assembly being provided at the inner bottom end of the injection box.

[0013] As a preferred technical solution of this application, the lifting component includes a lifting magnet slidably connected inside the lower mold, a lifting seat fixedly connected to the lower bottom end of the lower mold corresponding to the lifting magnet, and an electromagnet fixedly connected to the inner bottom end of the lifting seat.

[0014] As a preferred technical solution of this application, the lifting assembly further includes an electrical wire fixedly connected to the side wall of the lifting seat, and an electrical socket is fixedly connected to the top of the upper mold.

[0015] As a preferred technical solution of this application, a rotating shaft is fixedly connected to the top end of the injection molding box, and a lever is rotatably connected to the outer wall of the rotating shaft.

[0016] As a preferred technical solution of this application, the side wall of the support plate is fixedly connected to an installation block, and the upper top end of the installation block is provided with a threaded groove.

[0017] (III) Beneficial Effects

[0018] By combining the ejection assembly with the lifting assembly, the molded part can be ejected stably and effectively. When the upper mold is lifted after injection, it drives the ejector rod inside the hydraulic pipe to rise. By squeezing the liquid inside the sealed pipe, the ejector rod at the other end drives the lower mold to rise, ejecting the part. At the same time, during the ejection process, the lower temperature of the liquid drives the liquid inside the cooling pipe to flow, thereby improving the cooling effect of the cooling pipe. With the secondary lifting of the lifting assembly, it is easy for operators to quickly remove the part, improving the efficiency of injection molding production. Attached Figure Description

[0019] Figure 1A schematic diagram of the overall structure of an injection mold for injection molded parts;

[0020] Figure 2 This is a schematic diagram of the structure of a fixing plate in an injection mold for injection molding parts;

[0021] Figure 3 This is a schematic diagram of the lower mold in an injection mold for injection molding parts.

[0022] Figure 4 This is a schematic diagram of the ejector pin in an injection mold for injection molding parts.

[0023] Figure 5 This is a schematic diagram of the structure of an electromagnet in an injection mold for injection molding parts.

[0024] In the picture:

[0025] 1. Support plate; 2. Vertical support; 3. Fixing plate; 4. Electric push rod; 5. Upper mold; 6. Injection box; 7. Lower mold; 8. Hydraulic pipe; 9. Ejector rod; 10. Abutment block; 11. Cooling pipe; 12. Lifting magnet; 13. Lifting seat; 14. Electromagnet; 15. Electrical wire; 16. Power supply seat; 17. Rotating shaft; 18. Actuating rod; 19. Mounting block. 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] This utility model provides an injection mold for injection molded parts, such as Figures 1-5 As shown, the injection mold for injection molded parts includes a support plate 1, a vertical support 2 is fixedly connected to the upper top end of the support plate 1, and an ejection assembly is provided at the upper top end of the vertical support 2.

[0028] The ejection assembly includes a fixed plate 3 fixedly connected to the top of the support 2, an electric push rod 4 fixedly connected to the top of the fixed plate 3, an upper mold 5 fixedly sleeved at the output end of the electric push rod 4, an injection box 6 fixedly connected to the top of the support plate 1, a lower mold 7 slidably connected to the inner wall of the injection box 6, a hydraulic pipe 8 fixedly connected to the side wall of the injection box 6, and an ejector rod 9 slidably connected to the inner wall of the hydraulic pipe 8. One ejector rod 9 is fixedly connected to the bottom end of the lower mold 7, a stop block 10 is fixedly connected to the side wall of the upper mold 5, and the end of the other ejector rod 9 is fixedly connected to the top of the stop block 10.

[0029] The ejection assembly also includes a cooling pipe 11 fixedly connected to the bottom of the lower mold 7. The end of the cooling pipe 11 is fixedly connected to the side wall of the hydraulic pipe 8. A lifting assembly is provided at the bottom of the injection box 6.

[0030] The lifting assembly includes a lifting magnet 12 that is slidably connected inside the lower mold 7. A lifting seat 13 is fixedly connected to the lower bottom end of the lower mold 7 corresponding to the lifting magnet 12. An electromagnet 14 is fixedly connected to the inner bottom end of the lifting seat 13.

[0031] The lifting assembly also includes an electrical wire 15 fixedly connected to the side wall of the lifting seat 13, and an electrical socket 16 fixedly connected to the top of the upper mold 5.

[0032] Specifically, the support plate 1 provides sufficient stability for the injection molding machine, and the vertical support 2 fixedly connected to its top provides sufficient support for the fixed plate 3, ensuring that the electric push rod 4 on it will not become unstable during operation, thus improving the safety of injection molding. By setting up the ejection assembly, the low compressibility of the liquid can be utilized. When the upper mold 5 is lifted, it drives the ejector rod 9 to move, and then the pressure of the liquid in the closed environment drives the other ejector rod 9 to push out the lower mold 7, completing the ejection process. This method has higher stability than air lifting. Because air has a certain compressibility, it cannot effectively lift heavy items or after repeated use. After the item is injected, the electric push rod 4 is activated. The contraction of its output end drives the upper mold 5 to rise. When it rises, the abutment block 10 on its side wall will drive the ejector rod 9 to contract longitudinally, thus squeezing the liquid inside the hydraulic pipe 8 and causing it to flow to the other ejector rod 9 and drive it out. The liquid slides and displaces, thus ejecting the lower mold 7. This synchronous method improves ejection efficiency. As the liquid moves, some also flows into the cooling pipe 11, carrying away some heat and enhancing its cooling effect on the lower mold 7. When the item is lifted, to facilitate quick removal, the lifting magnet 12 and electromagnet 14 within the lifting assembly are used. Magnetic repulsion drives the lifting magnet 12 to lift the item a second time, making it easier for the operator to pick up and put down. When the upper mold 5 rises, the energized seat 16 on its side wall moves to the outer wall of the conductor 15, allowing the conductor 15 to transmit current to the lifting seat 13, energizing the electromagnet 14, which then uses magnetic force for lifting. This assembly has a simple structure and high practicality. It can lift the item synchronously with the lower mold 7 as the upper mold 5 moves, improving operator efficiency.

[0033] A rotating shaft 17 is fixedly connected to the top of the injection molding box 6, and a lever 18 is rotatably connected to the outer wall of the rotating shaft 17.

[0034] A mounting block 19 is fixedly connected to the side wall of the support plate 1, and a threaded groove is provided at the top of the mounting block 19.

[0035] Specifically, the rotating shaft 17 and the lever 18 at the top of the injection molding box 6 allow heavy items to be directly pushed into the storage box by rotating the lever 18, preventing damage to the items when handled by the operator. The mounting block 19 on the side wall of the support plate 1 allows for quick connection to the ground, providing stability for the injection molding process.

[0036] 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. Injection mold for injection-molded parts, comprising a support plate (1), characterized in that: The upper top end of the support plate (1) is fixedly connected with a vertical support (2), and the upper top end of the vertical support (2) is provided with an ejection assembly; The ejection assembly comprises a fixed plate (3) fixedly connected with the upper top end of the vertical support (2), the upper top end of the fixed plate (3) is fixedly connected with an electric push rod (4), the output end of the electric push rod (4) is fixedly sleeved with an upper die (5), the upper top end of the support plate (1) is fixedly connected with an injection box (6), the inner wall of the injection box (6) is slidably connected with a lower die (7), the side wall of the injection box (6) is fixedly connected with a hydraulic pipe (8), the inner wall of the hydraulic pipe (8) is slidably connected with a top rod (9), one of the top rods (9) is fixedly connected with the lower bottom end of the lower die (7), the side wall of the upper die (5) is fixedly connected with a stop block (10), and the other end of the top rod (9) is fixedly connected with the upper top end of the stop block (10).

2. An injection mold for an injection molded part according to claim 1, characterized in that: The ejection assembly further comprises a cooling pipe (11) fixedly connected with the lower bottom end of the lower die (7), the end of the cooling pipe (11) is fixedly connected with the side wall of the hydraulic pipe (8), and the inner bottom end of the injection box (6) is provided with a lifting assembly.

3. An injection mold for injection molded parts according to claim 2, characterized in that: The lifting assembly comprises a lifting magnet (12) slidably connected inside the lower die (7), the lower bottom end of the lower die (7) is fixedly connected with a lifting seat (13) corresponding to the lifting magnet (12), and the inner bottom end of the lifting seat (13) is fixedly connected with an electromagnet (14).

4. An injection mold for injection molded parts according to claim 3, characterized in that: The lifting assembly further comprises an electric wire (15) fixedly connected with the side wall of the lifting seat (13), and the upper top end of the upper die (5) is fixedly connected with an electrification seat (16).

5. An injection mold for an injection molded part as defined in claim 1, characterized in that: The upper top end of the injection box (6) is fixedly connected with a rotating shaft (17), and the outer wall of the rotating shaft (17) is rotatably connected with a pushing rod (18).

6. An injection mold for an injection molded part as defined in claim 1, characterized in that: The side wall of the support plate (1) is fixedly connected with a mounting block (19), and the upper top end of the mounting block (19) is provided with a threaded groove.

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