Household appliance thin-wall shell injection mold frame

Abstract

The utility model discloses a household appliance thin-wall shell injection mold frame which comprises a mold frame body, a lower mold is fixedly installed at the top of the mold frame body, a U-shaped plate is fixedly installed at the bottom of the mold frame body, an ejection mechanism is arranged on the inner wall of the U-shaped plate, and an installation frame is fixedly installed at the top of the mold frame body. And a lifting block is mounted on the inner wall of the mounting frame through a lifting mechanism. The lifting mechanism drives the upper mold to descend, the upper mold and the lower mold can be closed, injection molding can be conducted, the lifting mechanism drives the upper mold to ascend, the upper mold and the lower mold can be separated, meanwhile, a workpiece can be ejected out through the ejection mechanism, and meanwhile the lifting mechanism drives the worm to rotate. The worm drives the worm gear to rotate, a workpiece on the top of the ejection plate can be pushed down through the pushing mechanism, automatic demolding can be completed, the purpose of conveniently discharging the workpiece on the top of the ejection mechanism is achieved, the structure is simple, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of mold frame technology, and in particular to an injection mold frame for thin-walled housings of household appliances. Background Technology

[0002] Household appliances mainly refer to various electrical and electronic appliances used in homes and similar places. They are also known as civilian appliances or daily appliances. Household appliances liberate people from heavy, tedious, and time-consuming housework, creating a more comfortable, beautiful, and healthier living and working environment for humankind, and providing a wealth of cultural and entertainment options. When manufacturing household appliances, injection molds are typically used to mold the thin-walled casings of the appliances. During the injection molding process, an injection mold holder is used to hold the injection mold.

[0003] During the use of injection mold bases, ejection mechanisms are usually set on the injection mold bases to facilitate demolding. However, after demolding, the molded thin-walled shell of the home appliance is still left on the top of the ejection mechanism and still needs to be removed by the staff. If the thin-walled shell of the home appliance cannot be removed from the top of the ejection mechanism, it will not be conducive to the automatic removal of the thin-walled shell of the home appliance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an injection mold base for thin-walled housings of household appliances, which solves the problems mentioned in the background art.

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

[0006] A molding die for thin-walled housings of household appliances includes a die body. A lower die is fixedly mounted on the top of the die body, and a U-shaped plate is fixedly mounted on the bottom of the die body. An ejection mechanism is provided on the inner wall of the U-shaped plate. A mounting frame is fixedly mounted on the top of the die body. A lifting block is mounted on the inner wall of the mounting frame via a lifting mechanism. A worm gear is fixedly mounted on the inner wall of the mounting frame via the lifting mechanism. A lifting plate is fixedly mounted on one side of the lifting block. An upper die is fixedly mounted on the bottom of the lifting plate. A worm wheel is meshed on the surface of the worm gear, and a pushing mechanism is provided on the inner wall of the worm wheel.

[0007] Preferably, the ejection mechanism includes an electric push rod fixedly installed on the inner wall of the U-shaped plate, and an ejection plate is fixedly installed at the output end of the electric push rod.

[0008] Preferably, the lifting mechanism includes a motor fixedly installed on the top of the mounting frame, a first lead screw fixedly installed at the output end of the motor, and the surface of the lifting block is threaded onto the surface of the first lead screw, with the surface of the first lead screw and the inner wall of the worm gear being fixedly installed.

[0009] Preferably, the pushing mechanism includes a second lead screw fixedly installed on the inner wall of the worm gear, a movable block is threaded on the surface of the second lead screw, and a pushing plate is fixedly installed on one side of the movable block.

[0010] Preferably, the inner wall of the mounting bracket is provided with a first limiting groove, and a first limiting block is slidably installed on the inner wall of the first limiting groove. One side of the first limiting block and one side of the lifting block are fixedly installed.

[0011] Preferably, a second limiting groove is provided on the top of the mold frame body, and a second limiting block is slidably installed on the inner wall of the second limiting groove. The top of the second limiting block and the bottom of the moving block are fixedly installed.

[0012] Preferably, the number of lifting blocks and moving blocks is two sets, and they are arranged symmetrically.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This thin-walled shell injection mold frame for home appliances uses a lifting mechanism to drive the upper mold to descend, thereby closing the upper and lower molds for injection molding. The lifting mechanism also drives the upper mold to rise, separating the upper and lower molds, allowing the workpiece to be ejected via an ejection mechanism. Furthermore, the lifting mechanism drives the worm gear to rotate, which in turn drives the worm wheel to rotate, pushing the workpiece off the top of the ejector plate via a pusher mechanism, thus achieving automatic demolding. This facilitates the unloading of the workpiece from the top of the ejector mechanism, resulting in a simple structure and ease of use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric projection of this utility model;

[0015] Figure 2 This is a structural schematic diagram of a cross-sectional view of the present invention;

[0016] Figure 3 This is a partial structural schematic diagram of the present invention;

[0017] Figure 4 This is an enlarged view of section A of this utility model.

[0018] In the diagram: 1. Mold frame body; 2. Lower mold; 3. U-shaped plate; 4. Electric push rod; 5. Ejector plate; 6. Mounting bracket; 7. Motor; 8. First lead screw; 9. Lifting block; 10. Lifting plate; 11. Upper mold; 12. Worm gear; 13. Worm wheel; 14. Second lead screw; 15. Moving block; 16. Push plate; 17. First limiting groove; 18. First limiting block; 19. Second limiting groove; 20. Second limiting block. Detailed Implementation

[0019] 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.

[0020] Example: Refer to Figure 1-4 This utility model provides a technical solution: an injection mold frame for thin-walled housings of household appliances, including a mold frame body 1. A lower mold 2 is fixedly installed on the top of the mold frame body 1, and a U-shaped plate 3 is fixedly installed on the bottom of the mold frame body 1. An ejection mechanism is provided on the inner wall of the U-shaped plate 3. The ejection mechanism includes an electric push rod 4 fixedly installed on the inner wall of the U-shaped plate 3. An ejection plate 5 is fixedly installed on the output end of the electric push rod 4 to facilitate workpiece ejection and demolding. A mounting frame 6 is fixedly installed on the top of the mold frame body 1. A lifting block 9 is installed on the inner wall of the mounting frame 6 through a lifting mechanism. A worm gear 12 is fixedly installed on the inner wall of the mounting frame 6 through the lifting mechanism. The lifting mechanism includes an electric push rod 4 fixedly installed on the top of the mounting frame 6. The output end of the motor 7 is fixedly installed with a first lead screw 8. The surface of the lifting block 9 is threaded onto the surface of the first lead screw 8 to facilitate the lifting of the lifting block 9. The surface of the first lead screw 8 and the inner wall of the worm gear 12 are fixedly installed to facilitate the rotation of the worm gear 12. The inner wall of the mounting frame 6 is provided with a first limiting groove 17. The inner wall of the first limiting groove 17 is slidably installed with a first limiting block 18. One side of the first limiting block 18 and one side of the lifting block 9 are fixedly installed to limit the lifting block 9, making the lifting of the lifting block 9 more stable. A lifting plate 10 is fixedly installed on one side of the lifting block 9. An upper mold 11 is fixedly installed at the bottom of the lifting plate 10. A worm wheel 13 is meshed on the surface of the worm gear 12.

[0021] Specifically, the inner wall of the worm gear 13 is provided with a pushing mechanism, which includes a second lead screw 14 fixedly installed on the inner wall of the worm gear 13. A moving block 15 is threaded on the surface of the second lead screw 14. A pushing plate 16 is fixedly installed on one side of the moving block 15 to facilitate pushing the workpiece down through the pushing plate 16 for easy unloading. A second limiting groove 19 is opened on the top of the mold frame body 1. A second limiting block 20 is slidably installed on the inner wall of the second limiting groove 19. The top of the second limiting block 20 and the bottom of the moving block 15 are fixedly installed to limit the movement of the moving block 15, making the movement of the moving block 15 more stable. The lifting block 9 and the moving block 15 are also included. The number of moving blocks 15 is two sets, which are symmetrically arranged. The upper mold 11 is driven to descend by the lifting mechanism, so that the upper mold 11 and the lower mold 2 can be closed for injection molding. The upper mold 11 is driven to rise by the lifting mechanism, so that the upper mold 11 and the lower mold 2 can be separated. At the same time, the ejection mechanism can eject the workpiece. Simultaneously, the worm gear 12 is driven to rotate by the lifting mechanism, and the worm gear 12 drives the worm wheel 13 to rotate, so that the workpiece on the top of the ejector plate 5 can be pushed down by the pushing mechanism, thus completing the automatic demolding. This achieves the purpose of facilitating the unloading of the workpiece on the top of the ejector mechanism. The structure is simple and easy to use.

[0022] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0023] In use: When using this thin-walled appliance housing injection mold frame, the motor 7 drives the first lead screw 8 to rotate, which in turn drives the lifting block 9 to descend. The lifting block 9 then drives the lifting plate 10 to descend, which in turn drives the upper mold 11 to descend, thus closing the upper mold 11 and the lower mold 2 for injection molding. After molding, the motor 7 drives the first lead screw 8 to rotate, which in turn drives the upper mold 11 to rise, separating the upper mold 11 and the lower mold 2. Simultaneously, an electric push... Rod 4 drives the ejector plate 5 to rise, thus ejecting the workpiece. Simultaneously, the first lead screw 8 drives the worm gear 12 to rotate, which in turn drives the worm wheel 13 to rotate. The worm wheel 13 then drives the second lead screw 14 to rotate, which in turn drives the moving block 15 to move. The moving block 15 then drives the pusher plate 16 to move, thus pushing the workpiece off the top of the ejector plate 5. This completes the automatic demolding process and facilitates the unloading of the workpiece from the top of the ejector mechanism. The structure is simple and easy to use.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding die for thin-walled housings of household appliances, comprising a die body (1), characterized in that, The top of the mold frame body (1) is fixedly installed with a lower mold (2), the bottom of the mold frame body (1) is fixedly installed with a U-shaped plate (3), the inner wall of the U-shaped plate (3) is provided with an ejection mechanism, the top of the mold frame body (1) is fixedly installed with an installation frame (6), the inner wall of the installation frame (6) is installed with a lifting block (9) through a lifting mechanism, the inner wall of the installation frame (6) is fixedly installed with a worm gear (12) through a lifting mechanism, a lifting plate (10) is fixedly installed on one side of the lifting block (9), the bottom of the lifting plate (10) is fixedly installed with an upper mold (11), the surface of the worm gear (12) is meshed with a worm wheel (13), and the inner wall of the worm wheel (13) is provided with a pushing mechanism.

2. The injection mold frame for thin-walled housings of household appliances according to claim 1, characterized in that, The ejection mechanism includes an electric push rod (4) fixedly installed on the inner wall of the U-shaped plate (3), and an ejection plate (5) is fixedly installed at the output end of the electric push rod (4).

3. The injection mold frame for thin-walled housings of household appliances according to claim 1, characterized in that, The lifting mechanism includes a motor (7) fixedly installed on the top of the mounting frame (6), and a first lead screw (8) is fixedly installed at the output end of the motor (7). The surface of the lifting block (9) is threaded onto the surface of the first lead screw (8), and the surface of the first lead screw (8) and the inner wall of the worm gear (12) are fixedly installed.

4. The injection mold frame for thin-walled housings of household appliances according to claim 1, characterized in that, The feeding mechanism includes a second lead screw (14) fixedly installed on the inner wall of the worm gear (13), and a moving block (15) is threaded on the surface of the second lead screw (14). A feeding plate (16) is fixedly installed on one side of the moving block (15).

5. The injection mold frame for thin-walled housings of household appliances according to claim 1, characterized in that, The inner wall of the mounting bracket (6) is provided with a first limiting groove (17), and a first limiting block (18) is slidably installed on the inner wall of the first limiting groove (17). One side of the first limiting block (18) and one side of the lifting block (9) are fixedly installed.

6. The injection mold base for thin-walled housings of household appliances according to claim 4, characterized in that, The top of the mold frame body (1) is provided with a second limiting groove (19), and a second limiting block (20) is slidably installed on the inner wall of the second limiting groove (19). The top of the second limiting block (20) and the bottom of the moving block (15) are fixedly installed.

7. The injection mold base for thin-walled housings of household appliances according to claim 4, characterized in that, The number of lifting blocks (9) and moving blocks (15) is two sets, and they are arranged symmetrically.

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