Demolding device for household appliance mold production

Abstract

The utility model discloses a demoulding device for household appliance mould production, which comprises a working table, the upper end of the working table is fixedly connected with a lower mould, the upper end of the working table is fixedly connected with a plurality of fixing columns, the upper ends of the plurality of fixing columns are fixedly connected with a fixing plate together, the upper end of the fixing plate is provided with an air cylinder, and the air cylinder is fixedly connected with the lower mould. The lower end of the air cylinder penetrates through the fixing plate and is fixedly connected with a lifting plate, the lifting plate is in sliding connection with each fixing column, the outer wall of each fixing column is sleeved with a first spring, and the two ends of each first spring are elastically connected with the upper end of the workbench and the lower end of the lifting plate correspondingly. And the lower end of the lifting plate is fixedly connected with an upper die. The sliding rod, the convex block, the cam and other structures are arranged, so that the knocking hammer connected with the convex block reciprocates under the guidance of the sliding rod, the lower mold is knocked to vibrate, adhesion between a product and the mold is effectively damaged, and the product is smoothly demolded.

Description

Technical Field

[0001] This utility model relates to the field of household appliance mold technology, and in particular to a demolding device for household appliance mold production. Background Technology

[0002] In the current booming development of the home appliance manufacturing industry, molds play a pivotal role in the product forming process and are the key tools for achieving product forming. The demolding process, as an important part of mold production, directly affects the production progress and quality of home appliance products. Generally, the product is removed by ejecting or directly taking out the material, thereby completing the demolding work.

[0003] However, during the demolding process, there is often a strong adhesion between the product and the mold. This is due to the combined effect of various factors such as the roughness of the mold surface, the characteristics of the product material, and the pressure and temperature during the molding process. The adhesion makes it difficult for the product to be smoothly removed from the mold, increasing the difficulty and time cost of demolding. Therefore, we need to consider how to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a demolding device for home appliance mold production. The device is equipped with a sliding rod, a protrusion, and a cam, which allows a hammer connected to the protrusion to reciprocate with the guidance of the sliding rod, thereby striking the lower mold and causing it to vibrate. This effectively breaks the adhesion between the product and the mold, allowing the product to be demolded smoothly.

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

[0006] A demolding device for manufacturing household appliance molds includes a worktable. A lower mold is fixedly connected to the upper end of the worktable. Multiple fixed posts are fixedly connected to the upper end of the worktable. A fixed plate is fixedly connected to the upper end of the multiple fixed posts. A cylinder is mounted on the upper end of the fixed plate. The lower end of the cylinder passes through the fixed plate and is fixedly connected to a lifting plate. The lifting plate is slidably connected to each fixed post. A first spring is sleeved on the outer wall of each fixed post. Both ends of each first spring are elastically connected to the upper end of the worktable and the lower end of the lifting plate, respectively. The lower end of the lifting plate is fixedly connected to an upper mold. A sliding groove is provided inside the worktable. A bidirectional threaded rod is rotatably connected between the inner walls of the two sides of the sliding groove. A slider is threaded to both threaded ends of the bidirectional threaded rod. A hinge rod is hinged to the upper end of each slider. A moving groove is provided at the lower end of the lower mold. A moving plate is slidably connected to the inner wall of the moving groove. The other ends of the two hinge rods are hinged to the lower end of the moving plate. Two push rods are fixedly connected to the upper end of the moving plate. A striking mechanism for striking the lower mold is provided at the upper end of the worktable.

[0007] Preferably, a first motor is installed on the outer wall of the workbench, and the end of the output shaft of the first motor extends into the slide groove and is fixedly connected to one end of the bidirectional threaded rod.

[0008] Preferably, the striking mechanism includes a plurality of L-shaped plates fixedly connected to the upper end of the workbench, each L-shaped plate having a sliding rod slidably connected to its side wall, each sliding rod having a striking hammer fixedly connected to one end, each sliding rod having a second spring sleeved on its outer wall, and each second spring having its two ends elastically connected to the side wall of the corresponding L-shaped plate and the striking hammer, respectively.

[0009] Preferably, each of the striking hammers has a connecting rod fixedly connected to its upper end, the other end of each connecting rod passes through a corresponding L-shaped plate, and a protrusion is fixedly connected to the lower end of each striking hammer.

[0010] Preferably, a rotating shaft is rotatably connected between each pair of mating L-shaped plates, and two cams are fixedly connected to the outer walls of the two rotating shafts, with each cam mating with a corresponding protrusion.

[0011] Preferably, a second motor is installed on the side wall of one of the L-shaped plates. The output shaft of the second motor passes through the corresponding L-shaped plate and is fixedly connected to one end of one of the rotating shafts. The other ends of both rotating shafts pass through the corresponding L-shaped plates and are fixedly connected to a transmission wheel. The two transmission wheels are connected by a belt drive.

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

[0013] 1. The structure includes a sliding rod, a hammer, and a second spring. Through the cooperation of the protrusion and the cam, the hammer, under the elastic action of the second spring, strikes the mold regularly through the guide of the sliding rod, thereby causing the mold to vibrate. This effectively breaks the adhesion between the product and the mold, making the product easier to demold.

[0014] 2. The structure includes a bidirectional threaded rod, sliders, and hinged rods. The rotation of the bidirectional threaded rod drives the two sliders to move relative to or away from each other, allowing the moving plate connected by the hinged rod to rise or fall smoothly. This ensures that the ejector pins are ejected or retracted synchronously, preventing product damage or demolding failure due to uneven ejection and ensuring a stable and reliable demolding process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the demolding device for producing household appliance molds proposed in this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the front cross-section;

[0017] Figure 3 for Figure 2 Enlarged view of point A;

[0018] Figure 4 for Figure 1 A schematic diagram of the left-side cross-section;

[0019] Figure 5 for Figure 4 Enlarged view of point B;

[0020] Figure 6 for Figure 1 The diagram on the right;

[0021] Figure 7 for Figure 1 The diagram on the left.

[0022] In the diagram: 1. Workbench, 2. Lower mold, 3. Fixed column, 4. Fixed plate, 5. Cylinder, 6. Lifting plate, 7. First spring, 8. Upper mold, 9. Slide groove, 10. Bidirectional threaded rod, 11. First motor, 12. Slider, 13. Hinge rod, 14. Moving groove, 15. Moving plate, 16. Top rod, 17. L-shaped plate, 18. Sliding rod, 19. Hammer, 20. Second spring, 21. Connecting rod, 22. Protrusion, 23. Rotating shaft, 24. Cam, 25. Second motor, 26. Transmission wheel, 27. Belt. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-7 A demolding device for home appliance mold production includes a worktable 1, a lower mold 2 fixedly connected to the upper end of the worktable 1, multiple fixed columns 3 fixedly connected to the upper end of the worktable 1, a fixed plate 4 fixedly connected to the upper end of the multiple fixed columns 3, a cylinder 5 installed on the upper end of the fixed plate 4, the lower end of the cylinder 5 passing through the fixed plate 4 and fixedly connected to a lifting plate 6, the lifting plate 6 being slidably connected to each fixed column 3, and a first spring 7 sleeved on the outer wall of each fixed column 3, the two ends of each first spring 7 being elastically connected to the upper end of the worktable 1 and the lower end of the lifting plate 6 respectively. The first spring 7 serves to buffer and reset. When the cylinder 5 pushes the lifting plate 6 down to close the mold, the first spring 7 is compressed, absorbing part of the impact force and reducing damage to the mold and equipment. During demolding, the cylinder 5 rises, and the elastic force of the first spring 7 helps the lifting plate 6 rise more smoothly, improving the safety and reliability of the mold opening and closing process.

[0025] The lower end of the lifting plate 6 is fixedly connected to the upper mold 8. The fixed column 3 provides a stable support frame for the entire device, ensuring the stability of the upper mold 8 and the lower mold 2 during the opening and closing process. The cylinder 5 serves as a power source and can precisely control the lifting action of the upper mold 8. The worktable 1 is provided with a slide groove 9. A bidirectional threaded rod 10 is rotatably connected between the inner walls of the two sides of the slide groove 9. A first motor 11 is installed on the outer wall of the worktable 1. The first motor 11 is a servo motor. The output shaft of the first motor 11 extends into the slide groove 9 and is fixedly connected to one end of the bidirectional threaded rod 10. Both threaded ends of the bidirectional threaded rod 10 are threadedly connected to sliders 12. The upper ends of the two sliders 12 are hinged to hinge rods 13. The lower end of the lower mold 2 is provided with a moving groove 14. A moving plate 15 is slidably connected to the inner wall of the moving groove 14. The other ends of the two hinge rods 13 are hinged to the lower end of the moving plate 15.

[0026] Two ejector rods 16 are fixedly connected to the upper end of the movable plate 15. A first motor 11 drives a bidirectional threaded rod 10 to rotate, causing two sliders 12 to move relative to or away from each other. Through the transmission of the hinge rod 13, the horizontal movement of the sliders 12 is converted into the vertical movement of the movable plate 15, thereby causing the ejector rods 16 to push the product upwards, achieving demolding. This provides a large ejection force, and the ejection action is smooth and reliable, improving demolding efficiency. A striking mechanism for striking the lower mold 2 is provided at the upper end of the worktable 1. The striking mechanism includes components fixedly connected to the worktable... The upper end of the worktable 1 has multiple L-shaped plates 17. Each L-shaped plate 17 has a sliding rod 18 slidably connected to its side wall. One end of each sliding rod 18 is fixedly connected to a hammer 19. The outer wall of each sliding rod 18 is fitted with a second spring 20. Both ends of each second spring 20 are elastically connected to the side wall of the corresponding L-shaped plate 17 and the hammer 19, respectively. The upper end of each hammer 19 is fixedly connected to a connecting rod 21. The other end of each connecting rod 21 passes through the corresponding L-shaped plate 17. The lower end of each hammer 19 is fixedly connected to a protrusion 22.

[0027] In this design, a rotating shaft 23 is rotatably connected between every two mating L-shaped plates 17. Two cams 24 are fixedly connected to the outer walls of the two rotating shafts 23. Each cam 24 is mated with a corresponding protrusion 22. A second motor 25 is installed on the side wall of one of the L-shaped plates 17. The second motor 25 drives the rotating shaft 23 to rotate, which in turn drives the cam 24 to rotate. The cam 24 and the protrusion 22 are mated together, causing the hammer 19 to reciprocate under the action of the second spring 20, striking the lower mold 2. This striking action can effectively loosen the fit between the product and the mold, assisting the ejector rod 16 to complete demolding more smoothly, reducing the demolding resistance of the product, and reducing the probability of product damage. The second motor 25 is a servo motor. The end of the output shaft of the second motor 25 passes through the corresponding L-shaped plate 17 and is fixedly connected to one end of one of the rotating shafts 23. The other ends of the two rotating shafts 23 pass through the corresponding L-shaped plates 17 and are fixedly connected to a transmission wheel 26. The two transmission wheels 26 are connected by a belt 27.

[0028] In this utility model, when in use, the cylinder 5 is activated, which drives the lifting plate 6 to slide downward along the fixed column 3. At this time, the first spring 7 is compressed. As the lifting plate 6 descends, the upper mold 8 gradually approaches the lower mold 2 and finally closes with the lower mold 2, completing the mold closure so as to carry out the production and processing of the home appliance mold. After the mold processing is completed, the cylinder 5 is activated, which drives the lifting plate 6 to move upward. The first spring 7 gradually returns to its original state, further assisting the lifting plate 6 to rise, so that the upper mold 8 separates from the lower mold 2, completing the mold opening action.

[0029] When the mold is opened, the first motor 11 is started, which drives the bidirectional threaded rod 10 to rotate, thereby causing the two sliders 12 to move. The movement of the sliders 12 will push the moving plate 15 to slide upward in the moving groove 14 through the hinge rod 13, thereby causing the ejector rod 16 to push the molded product in the mold upward, so that it separates from the lower mold 2 and achieves initial demolding.

[0030] Simultaneously, the second motor 25 is started, driving one of the rotating shafts 23 to rotate. Through the transmission wheel 26 and belt 27, the other rotating shaft 23 also rotates synchronously, thereby causing the cam 24 to rotate. When the protruding part of the cam 24 contacts the protrusion 22 at the lower end of the hammer 19, it pushes the protrusion 22, causing the hammer 19 to overcome the elastic force of the second spring 20 and slide outward along the sliding rod 18. At this time, the second spring 20 is compressed. When the protruding part of the cam 24 disengages from the protrusion 22, the second spring 20 returns to its original state, pushing the hammer 19 to slide inward, causing the hammer 19 to strike the side wall of the lower mold 2. Through the continuous striking of multiple hammers 19, the product in the lower mold 2 is better demolded, preventing the product from being unable to demold smoothly due to adhesion or other reasons.

[0031] 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 demolding device for manufacturing household appliance molds, comprising a worktable (1), characterized in that, The upper end of the workbench (1) is fixedly connected to a lower mold (2). Multiple fixed columns (3) are fixedly connected to the upper end of the workbench (1). A fixed plate (4) is fixedly connected to the upper end of the multiple fixed columns (3). A cylinder (5) is installed on the upper end of the fixed plate (4). The lower end of the cylinder (5) passes through the fixed plate (4) and is fixedly connected to a lifting plate (6). The lifting plate (6) is slidably connected to each fixed column (3). A first spring (7) is sleeved on the outer wall of each fixed column (3). Both ends of each first spring (7) are elastically connected to the upper end of the workbench (1) and the lower end of the lifting plate (6), respectively. The lower end of the lower plate (6) is fixedly connected to the upper mold (8). The worktable (1) is provided with a sliding groove (9). A bidirectional threaded rod (10) is rotatably connected between the inner walls of the two sides of the sliding groove (9). The two threaded ends of the bidirectional threaded rod (10) are threadedly connected to sliders (12). The upper ends of the two sliders (12) are hinged to hinge rods (13). The lower end of the lower mold (2) is provided with a moving groove (14). The inner wall of the moving groove (14) is slidably connected to a moving plate (15). The other ends of the two hinge rods (13) are hinged to the lower end of the moving plate (15). The upper end of the moving plate (15) is fixedly connected to two top rods (16). The upper end of the workbench (1) is provided with a striking mechanism for striking the lower mold (2).

2. A demolding device for a household appliance mold production according to claim 1, characterized in that, The outer wall of the workbench (1) is equipped with a first motor (11), the output shaft of the first motor (11) extends into the slide groove (9) and is fixedly connected to one end of the bidirectional threaded rod (10).

3. A demolding device for a household appliance mold production according to claim 1, characterized in that, The striking mechanism includes multiple L-shaped plates (17) fixedly connected to the upper end of the workbench (1). Each L-shaped plate (17) has a sliding rod (18) slidably connected to its side wall. One end of each sliding rod (18) is fixedly connected to a striking hammer (19). The outer wall of each sliding rod (18) is fitted with a second spring (20). Both ends of each second spring (20) are elastically connected to the side wall of the corresponding L-shaped plate (17) and the striking hammer (19), respectively.

4. A demolding device for a household appliance mold production according to claim 3, characterized in that, Each of the hammers (19) has a connecting rod (21) fixedly connected to its upper end, and the other end of each connecting rod (21) passes through a corresponding L-shaped plate (17). Each of the hammers (19) has a protrusion (22) fixedly connected to its lower end.

5. A demolding device for a household appliance mold production according to claim 4, characterized in that, A rotating shaft (23) is rotatably connected between each pair of L-shaped plates (17). Two cams (24) are fixedly connected to the outer walls of the two rotating shafts (23), and each cam (24) cooperates with a corresponding protrusion (22).

6. A demolding device for a household appliance mold production according to claim 5, characterized in that, A second motor (25) is installed on the side wall of one of the L-shaped plates (17). The output shaft of the second motor (25) passes through the corresponding L-shaped plate (17) and is fixedly connected to one end of one of the rotating shafts (23). The other ends of the two rotating shafts (23) pass through the corresponding L-shaped plates (17) and are fixedly connected to a transmission wheel (26). The two transmission wheels (26) are connected by a belt (27).

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