An injection molding device for producing and processing an electric appliance panel

By designing the injection and ejection mechanisms of the injection molding device, and utilizing hydraulic drive and elastic connection to achieve automatic demolding, the problems of low efficiency and damage caused by manual removal of electrical panels were solved, thereby improving production efficiency and product quality.

CN224408357UActive Publication Date: 2026-06-26JINGJIANG SENYUAN ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINGJIANG SENYUAN ELECTRIC CO LTD
Filing Date
2025-07-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the current injection molding process for electrical appliance panels, the molded panels need to be manually removed, resulting in low production efficiency and easy product damage.

Method used

An injection molding device for manufacturing electrical appliance panels was designed, comprising an injection molding mechanism and an ejection mechanism. The device utilizes a hydraulic telescopic rod to drive a lifting plate and a cylindrical ejector block to achieve automatic demolding, and uses an elastic connecting block to ensure the stable reset of the ejector block.

Benefits of technology

It enables automatic demolding of electrical appliance panels, reduces manual operation, improves production efficiency, avoids product damage, and ensures product quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224408357U_ABST
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Abstract

The utility model discloses an injection molding device for electric appliance panel production and processing belongs to injection molding equipment technical field, including work table, the upper end fixed connection of work table has the U-shaped support, injection molding mechanism, injection molding mechanism includes the telescopic link of installation in the upper end of U-shaped support, the telescopic end fixed connection of telescopic link has the lifting plate, the lower fixed connection of lifting plate has the upper die, the upper end fixed connection of work table has the lower die, the ejection mechanism, the ejection mechanism includes the rectangular inner chamber of setting in the lower die, the inner bottom of rectangular inner chamber is provided with the ejector plate. The equipment is to the use problem, sets up injection molding mechanism, can realize the injection molding operation of electric appliance panel, also set up the ejection mechanism, through the control multiple cylindrical ejector block up -shift, can automatically realize the stripping of injection molding article, can ensure the stable reset of multiple cylindrical ejector block simultaneously, is convenient for the stable use of subsequent.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, and in particular to an injection molding device for the production and processing of electrical appliance panels. Background Technology

[0002] In the current booming development of the electrical appliance industry, electrical appliance panels, as an important component of various electrical appliances, directly affect the performance and market competitiveness of electrical appliances in terms of their quality and production efficiency. In the field of electrical appliance panel production and processing, injection molding is one of the key manufacturing processes.

[0003] Currently, during the injection molding of electrical appliance panels, workers often need to manually remove the molded panels from the mold after each injection molding process. This not only increases the workload of workers and reduces actual production efficiency, but also easily leads to damage to the electrical appliance panels due to improper operation, thus affecting product quality. Therefore, designing an injection molding device for the production and processing of electrical appliance panels is something we need to consider in order to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an injection molding device for manufacturing and processing electrical appliance panels. This device includes an injection molding mechanism to enable injection molding of electrical appliance panels, and an ejection mechanism that automatically demolds the molded items by controlling the upward movement of multiple cylindrical ejector blocks. Simultaneously, it ensures the stable repositioning of the multiple cylindrical ejector blocks, facilitating stable subsequent use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An injection molding device for manufacturing electrical appliance panels includes a worktable with a U-shaped bracket fixedly connected to its upper end; an injection molding mechanism including a telescopic rod mounted on the upper end of the U-shaped bracket, a lifting plate fixedly connected to the telescopic end of the telescopic rod, an upper mold fixedly connected to the lower end of the lifting plate, and a lower mold fixedly connected to the upper end of the worktable; and an ejection mechanism including a rectangular cavity formed within the lower mold, an ejection plate disposed at the bottom of the rectangular cavity, a plurality of cylindrical ejection blocks fixedly connected to the upper end of the ejection plate, fixing blocks fixedly connected to the left and right sides of the ejection plate, two connecting rods fixedly connected to the lower end of the lifting plate, the lower ends of the two connecting rods passing through corresponding fixing blocks and fixedly connected to circular connecting blocks, a first annular connecting block disposed above each of the two fixing blocks, and the lower ends of the two first annular connecting blocks being elastically connected to the corresponding fixing blocks via springs.

[0007] Preferably, a second annular connecting block is fixedly connected to each of the two connecting rods, and each of the two second annular connecting blocks cooperates with a corresponding first annular connecting block.

[0008] Preferably, the inner walls on both the left and right sides of the rectangular cavity are provided with first rectangular through slots, and the upper end of the worktable is provided with two second rectangular through slots.

[0009] Preferably, the telescopic rod is a hydraulic telescopic rod, and the upper end of each cylindrical ejector block penetrates the inner top of the rectangular inner cavity.

[0010] Preferably, both connecting rods are slidably connected to the inner side of the corresponding first annular connecting block and the inner side of the second annular connecting block.

[0011] Preferably, a plurality of guide rods are fixedly connected between the U-shaped bracket and the lower mold, and the plurality of guide rods all pass through the lifting plate and are slidably connected to the lifting plate.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] An injection molding mechanism is installed, which controls the telescopic rod to drive the upper mold and lower mold to seal and fit together, enabling the injection molding of electrical panels. An ejection mechanism is also installed, which controls the telescopic rod to drive the lifting plate to move upward. With the help of the connecting rod and the circular connecting block, the ejector plate and multiple cylindrical ejector blocks can move upward to eject the molded electrical panel, thus achieving efficient automatic demolding. This effectively reduces the actual workload, and the even distribution of multiple cylindrical ejector blocks can prevent the panel from being damaged due to uneven force. After demolding, the lifting plate is controlled to move downward. The ejector plate and multiple cylindrical ejector blocks can be stably moved downward and reset through the first annular connecting block, spring and second annular connecting block, thus preparing for subsequent demolding operations. Overall, it has strong practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an injection molding device for manufacturing and processing electrical appliance panels according to this utility model;

[0015] Figure 2 for Figure 1 Partial structural diagram;

[0016] Figure 3 for Figure 2 Partial structural cross-sectional view.

[0017] In the diagram: 1. Workbench, 2. U-shaped bracket, 3. Telescopic rod, 4. Lifting plate, 5. Upper mold, 6. Lower mold, 7. Rectangular inner cavity, 8. Ejector plate, 9. Columnar ejector block, 10. Fixing block, 11. Connecting rod, 12. Circular connecting block, 13. First annular connecting block, 14. Spring, 15. Second annular connecting block, 16. First rectangular through slot, 17. Second rectangular through slot, 18. Guide rod. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-3 An injection molding device for manufacturing and processing electrical appliance panels includes a worktable 1. A U-shaped bracket 2 is fixedly connected to the upper end of the worktable 1. Two second rectangular through slots 17 are opened at the upper end of the worktable 1. The second rectangular through slots 17 allow connecting rods 11 and circular connecting blocks 12 to pass through, so as to ensure the smooth progress of automatic demolding operation.

[0020] The system also includes an injection molding mechanism, which includes a telescopic rod 3 installed on the upper end of the U-shaped bracket 2. The telescopic rod 3 is a hydraulic telescopic rod. The telescopic end of the telescopic rod 3 is fixedly connected to a lifting plate 4. The lower end of the lifting plate 4 is fixedly connected to an upper mold 5. The upper end of the upper mold 5 is also provided with an injection hole, which allows molten plastic to be injected between the upper mold 5 and the lower mold 6. The upper end of the worktable 1 is fixedly connected to the lower mold 6. Multiple guide rods 18 are fixedly connected between the U-shaped bracket 2 and the lower mold 6. The multiple guide rods 18 all pass through the lifting plate 4 and are slidably connected to the lifting plate 4.

[0021] The system also includes an ejection mechanism, which comprises a rectangular cavity 7 formed within the lower mold 6. An ejection plate 8 is located at the bottom of the rectangular cavity 7. Multiple cylindrical ejection blocks 9 are fixedly connected to the upper end of the ejection plate 8, with the upper end of each cylindrical ejection block 9 penetrating the top of the rectangular cavity 7. Fixing blocks 10 are fixedly connected to both sides of the ejection plate 8. First rectangular through slots 16 are formed on the inner walls of both sides of the rectangular cavity 7, and the two fixing blocks 10 penetrate the corresponding first rectangular through slots 16. Two connecting rods 11 are fixedly connected to the lower end of the lifting plate 4. Both connecting rods 11 are slidably connected to the inner side of the corresponding first annular connecting block 13 and the inner side of the corresponding second annular connecting block 15. The lower ends of both connecting rods 11 penetrate the corresponding fixing blocks 10 and are fixedly connected to circular connecting blocks 12. When the lifting plate 4 moves upward... When the two fixed blocks 10 are moved upward by the connecting rod 11 and the circular connecting block 12, the ejector plate 8 and multiple cylindrical ejector blocks 9 are moved upward synchronously, thereby ejecting the molded injection molded item from the lower mold 6. A first annular connecting block 13 is provided above each of the two fixed blocks 10. The lower ends of the two first annular connecting blocks 13 are elastically connected to the corresponding fixed blocks 10 by springs 14. A second annular connecting block 15 is fixedly connected to each of the two connecting rods 11. The two second annular connecting blocks 15 cooperate with the corresponding first annular connecting blocks 13. When the second annular connecting block 15 moves downward along with the lifting plate 4, it can press down the first annular connecting block 13. With the force generated by the compression of the spring 14, the fixed blocks 10 and the ejector plate 8 can be stably moved downward and reset, which facilitates subsequent injection and ejection operations.

[0022] In this utility model, during use, the telescopic rod 3 is first controlled to move the lifting plate 4 down until the lower end of the upper mold 5 and the upper end of the lower mold 6 are sealed and fitted together. Then, the molten plastic is injected into the mold cavity between the upper mold 5 and the lower mold 6 through the injection hole on the upper mold 5. After the molten plastic cools down, it forms a molded electrical panel.

[0023] After completing the above operations, the operator can control the telescopic rod 3 to move the lifting plate 4, the upper mold 5, the two connecting rods 11, and the two circular connecting blocks 12 upwards simultaneously. During the upward movement, the two circular connecting blocks 12 will contact the corresponding fixed blocks 10 and move them upwards, thereby moving the ejector plate 8 and multiple cylindrical ejector blocks 9 upwards simultaneously. When the multiple cylindrical ejector blocks 9 move upwards, they can eject the molded electrical panel from the lower mold 6. This can efficiently achieve automatic demolding of injection molded items, reduce the workload of the operator, and the even distribution of multiple cylindrical ejector blocks 9 can prevent the electrical panel from being damaged due to uneven force during demolding, thus ensuring product quality.

[0024] It is worth mentioning that after each demolding operation, when the lifting plate 4 is moved down again, the two connecting rods 11 can drive the two second annular connecting blocks 15 to contact and press down the corresponding first annular connecting blocks 13. When the first annular connecting blocks 13 are subjected to force, the springs 14 will be compressed. Under the elastic force of the two springs 14, the two fixed blocks 10 will be moved down. This ensures the stable downward movement and reset of the ejector plate 8 and multiple cylindrical ejector blocks 9, thus preparing for the subsequent demolding operation. It has good practicality.

[0025] 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. An injection molding device for manufacturing and processing electrical appliance panels, characterized in that, include: Workbench (1), with a U-shaped bracket (2) fixedly connected to the upper end of the workbench (1). The injection molding mechanism includes a telescopic rod (3) installed on the upper end of the U-shaped bracket (2), a lifting plate (4) is fixedly connected to the telescopic end of the telescopic rod (3), an upper mold (5) is fixedly connected to the lower end of the lifting plate (4), and a lower mold (6) is fixedly connected to the upper end of the worktable (1). The ejection mechanism includes a rectangular inner cavity (7) opened in the lower mold (6), an ejection plate (8) is provided at the bottom of the rectangular inner cavity (7), a plurality of cylindrical ejection blocks (9) are fixedly connected to the upper end of the ejection plate (8), and fixed blocks (10) are fixedly connected to the left and right sides of the ejection plate (8). Two connecting rods (11) are fixedly connected to the lower end of the lifting plate (4). The lower ends of the two connecting rods (11) pass through the corresponding fixed blocks (10) and are fixedly connected to a circular connecting block (12). A first annular connecting block (13) is provided above the two fixed blocks (10). The lower ends of the two first annular connecting blocks (13) are elastically connected to the corresponding fixed blocks (10) by springs (14).

2. The injection molding device for manufacturing and processing electrical appliance panels according to claim 1, characterized in that, Each of the two connecting rods (11) is fixedly connected with a second annular connecting block (15), and each of the two second annular connecting blocks (15) cooperates with the corresponding first annular connecting block (13).

3. The injection molding device for manufacturing and processing electrical appliance panels according to claim 1, characterized in that, The inner walls of the rectangular cavity (7) on both the left and right sides are provided with first rectangular through slots (16), and the upper end of the worktable (1) is provided with two second rectangular through slots (17).

4. The injection molding device for manufacturing and processing electrical appliance panels according to claim 1, characterized in that, The telescopic rod (3) is a hydraulic telescopic rod, and the upper end of each of the cylindrical ejector blocks (9) penetrates the inner top of the rectangular inner cavity (7).

5. The injection molding device for manufacturing and processing electrical appliance panels according to claim 2, characterized in that, Both connecting rods (11) are slidably connected to the inner side of the corresponding first annular connecting block (13) and the inner side of the second annular connecting block (15).

6. The injection molding apparatus for manufacturing and processing electrical appliance panels according to claim 1, characterized in that, Multiple guide rods (18) are fixedly connected between the U-shaped bracket (2) and the lower mold (6). All of the multiple guide rods (18) pass through the lifting plate (4) and are slidably connected to the lifting plate (4).