Special-shaped part injection mold

Abstract

The utility model relates to the technical field of injection molding, in particular to an injection mold for special-shaped parts, which mainly comprises a mounting plate, the lower die holder is arranged on the mounting plate; the lower die is fixedly arranged on the lower die holder; the upper die base is arranged right above the lower die; the upper die is arranged on the upper die base; the injection molding pipe is fixedly arranged on the upper mold base; the connecting plate is fixedly arranged on the mounting plate; the hydraulic cylinder is fixedly arranged on the connecting plate and is used for supporting an upper die holder; and the cleaning piece is arranged on the connecting plate and is used for cleaning the upper mold and the lower mold. According to the special-shaped part injection mold, through rotation of the second motor, the threaded rod drives the cleaning piece to move towards the interior of the lower mold base and the interior of the upper mold base, meanwhile, the cleaning piece can rotate, and therefore the lower mold and the upper mold are cleaned, and the situation that the yield is reduced due to residues can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection molding mold for special-shaped parts. Background Art

[0002] Injection molds are tools used to manufacture plastic products, especially for the production of special-shaped parts. Special-shaped parts usually have special shapes and geometric shapes, such as curves, curved surfaces, special-shaped holes, etc. These characteristics make them play an important role in high-end machinery and equipment, aerospace, automobile manufacturing, medical equipment and other fields. Injection molds melt plastics and inject them into the mold through high temperature and high pressure. After the plastic cools, the desired special-shaped parts can be obtained.

[0003] During the injection molding process, most of the existing special-shaped parts injection molds are demolded directly after the product is cooled and solidified. During this process, the product is prone to mold sticking, resulting in a decrease in the yield rate and a waste of resources and raw materials. After the product is injected, there will be residues left inside the mold, affecting the subsequent product injection molding process. Utility Model Content

[0004] The utility model aims to provide an injection mold for special-shaped parts to solve the problems raised by the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A special-shaped parts injection mold, comprising: a mounting plate; a lower mold base, arranged on the mounting plate; a lower mold, fixedly arranged on the lower mold base; an upper mold base, arranged directly above the lower mold; an upper mold, arranged on the upper mold base; an injection tube, fixedly arranged on the upper mold base; a connecting plate, fixedly arranged on the mounting plate; a hydraulic cylinder, fixedly arranged on the connecting plate and used for supporting the upper mold base; and a cleaning piece, arranged on the connecting plate and used for cleaning the upper mold and the lower mold.

[0007] Preferably, a first slider is slidably connected to the mounting plate, a first motor is fixedly connected to the first slider, a main shaft is provided at the output end of the first motor, a connecting piece is fixedly connected to the main shaft, a second slider is rotatably provided on the main shaft, a second spring is fixedly provided on the second slider, the second spring is fixedly connected to the mounting plate, a first spring is fixedly provided on the first slider, the first spring is fixedly connected to the mounting plate, and the second slider is fixedly connected to the lower mold base.

[0008] Preferably, a sliding groove is provided on the mounting plate, the sliding groove is slidably connected with a first sliding block, and the first sliding block is slidably connected to the mounting plate via the sliding groove.

[0009] Preferably, a second motor is fixedly connected to the connecting plate, a rotating shaft is provided at the output end of the second motor, a gear is fixedly connected to the rotating shaft, a circular rack is meshedly connected to the gear, the circular rack is fixedly connected to the connecting plate, a ball valve is rotatably connected to the gear, a threaded rod is rotatably connected to the ball valve, the threaded rod is threadedly connected to the circular rack, and the threaded rod is fixedly connected to the cleaning member.

[0010] Preferably, a circular plate is fixedly connected to the rotating shaft, a gear is fixedly connected to the circular plate, and the gear is fixedly connected to the rotating shaft via the circular plate.

[0011] Preferably, a crank is fixedly connected to the gear, a ball valve is rotatably connected to the crank, and the ball valve is rotatably connected to the gear via the crank.

[0012] Preferably, a hanging ear is fixedly connected to the circular rack, a threaded rod is threadedly connected to the hanging ear, and the threaded rod and the circular rack are threadedly connected via the hanging ear.

[0013] Preferably, a hydraulic cylinder is fixedly connected to the connecting plate, and the hydraulic cylinder is in contact with the upper die seat.

[0014] Compared with the prior art, the beneficial effect of the utility model is as follows: when in use, the staff controls the transmission of the hydraulic cylinder to control the up and down movement of the upper mold base, which is convenient for subsequent injection molding. When the injection molding work is completed, after the workpiece has cooled for a period of time, the staff starts the first motor. Since a connecting piece is fixedly arranged on the main shaft, the lower mold base can be vibrated, so that a gap is generated between the workpiece and the device, thereby facilitating demolding and avoiding the occurrence of mold sticking. After demolding, residues will fall on the workpiece, which will affect the next injection molding operation. After the hydraulic cylinder lifts the upper mold base, the staff controls the rotation of the second motor, so that the threaded rod drives the cleaning piece to move inside the lower mold base and the upper mold base, and also rotates at the same time, thereby cleaning the lower mold and the upper mold, thereby effectively avoiding the reduction of the yield rate due to residues.

[0015] The utility model controls the rotation of the second motor to clean the lower mold and the upper mold, thereby improving the yield rate of the injection molded workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0017] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0018] Figure 3It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0019] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0020] Figure 5 It is a top view of the three-dimensional structure of the utility model.

[0021] In the figure: 1. mounting plate; 2. first motor; 3. first slider; 4. first spring; 5. slide groove; 6. main shaft; 7. connecting piece; 8. second slider; 9. second spring; 10. lower die base; 11. lower die; 12. hydraulic cylinder; 13. connecting plate; 14. circular rack; 15. gear; 16. crank; 17. ball valve; 18. threaded rod; 19. hanging ear; 20. cleaning piece; 21. upper die; 22. injection tube; 23. upper die base; 24. round plate; 25. second motor; 26. rotating shaft. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0024] Example 1: Please refer to Figure 1-5The utility model provides a technical solution: an injection mold for special-shaped parts, a mounting plate 1; a lower mold base 10, which is arranged on the mounting plate 1; a lower mold 11, which is fixedly arranged on the lower mold base 10; an upper mold base 23, which is arranged just above the lower mold 11; an upper mold 21, which is arranged on the upper mold base 23; an injection tube 22, which is fixedly arranged on the upper mold base 23; a connecting plate 13, which is fixedly arranged on the mounting plate 1; a first slider 3 is slidably connected to the mounting plate 1, a first motor 2 is fixedly connected to the first slider 3, and the first motor 2 A main shaft 6 is provided at the output end, a connecting piece 7 is fixedly connected to the main shaft 6, a second slider 8 is rotatably provided on the main shaft 6, a second spring 9 is fixedly provided on the second slider 8, the second spring 9 is fixedly connected to the mounting plate 1, a first spring 4 is fixedly provided on the first slider 3, the first spring 4 is fixedly connected to the mounting plate 1, and the second slider 8 is fixedly connected to the lower die base 10; a slide groove 5 is provided on the mounting plate 1, the slide groove 5 is slidably connected to the first slider 3, and the first slider 3 is slidably connected to the mounting plate 1 through the slide groove 5.

[0025] Because the first motor 2 is fixedly connected to the first slider 3, and the output end of the first motor 2 is provided with a main shaft 6, and one side of the main shaft 6 is fixedly provided with a connecting piece 7, the first slider 3 is fixedly connected to the first spring 4, and one end of the main shaft 6 is fixedly provided with a second slider 8, and the second slider 8 is fixedly connected to the second spring 9. When demolding is required, the staff controls the rotation of the first motor 2, so that the lower mold base 10 fixedly connected to the second slider 8 vibrates, thereby creating a gap between the product and the mold, facilitating demolding and reducing the generation of scraps.

[0026] Embodiment 2: Figure 5As shown, a special-shaped part injection mold disclosed in the second embodiment of the utility model has a structure that is basically the same as that in the first embodiment, except that a hydraulic cylinder 12 is fixedly arranged on a connecting plate 13 for supporting an upper mold base 23; a cleaning member 20 is arranged on the connecting plate 13 for cleaning an upper mold 21 and a lower mold 11; a second motor 25 is fixedly connected to the connecting plate 13, a rotating shaft 26 is arranged at an output end of the second motor 25, a gear 15 is fixedly connected to the rotating shaft 26, a circular rack 14 is meshedly connected to the gear 15, the circular rack 14 is fixedly connected to the connecting plate 13, a ball valve 17 is rotatably connected to the gear 15, a threaded rod 18 is rotatably connected to the ball valve 17, and a threaded rod 18 is rotatably connected to the threaded rod 18. The threaded rod 18 is threadedly connected to the circular rack 14, and the threaded rod 18 is fixedly connected to the cleaning member 20; a circular plate 24 is fixedly connected to the rotating shaft 26, and a gear 15 is fixedly connected to the circular plate 24, and the gear 15 and the rotating shaft 26 are fixedly connected via the circular plate 24; a crank 16 is fixedly connected to the gear 15, and a ball valve 17 is rotatably connected to the crank 16, and the ball valve 17 and the gear 15 are rotatably connected via the crank 16; a hanging ear 19 is fixedly connected to the circular rack 14, and a threaded rod 18 is threadedly connected to the hanging ear 19, and the threaded rod 18 and the circular rack 14 are threadedly connected via the hanging ear 19; a hydraulic cylinder 12 is fixedly connected to the connecting plate 13, and the hydraulic cylinder 12 is in contact with the upper die seat 23.

[0027] Because the second motor 25 is fixedly arranged at the bottom of the connecting plate 13, the staff controls the rotation of the second motor 25 so that the rotating shaft 26 drives the gear 15 to rotate through the circular plate 24, so that the gear 15 rotates around the circular rack 14. Because the gear 15 is rotatably connected to the ball valve 17 through the crank 16, the threaded rod 18 is rotatably connected to the ball valve 17, and the threaded rod 18 is threadedly connected to the circular rack 14 through the ear 19, so that the threaded rod 18 is driven to rotate while extending and retracting back and forth. The threaded rod 18 is fixedly connected to the cleaning member 20, so that the cleaning member 20 cleans the lower mold 11 and the upper mold 21, and the hydraulic cylinder 12 can facilitate the staff to lift the upper mold base 23 for demolding.

[0028] The specific scheme is as follows: the output end of the hydraulic cylinder 12 is in contact with the upper mold base 23. The staff controls the transmission of the hydraulic cylinder 12 to control the upper mold base 23 to move up and down, which is convenient for subsequent injection molding. When the injection molding is completed, after the workpiece cools down for a period of time, the first motor 2 is fixedly connected to the first slider 3. The output end of the first motor 2 is provided with a spindle 6. The staff starts the first motor 2. Since the spindle 6 is fixedly provided with a connecting member 7, the lower mold base 10 can be vibrated, so that a gap is generated between the workpiece and the device, thereby facilitating demoulding and avoiding the occurrence of mold sticking. Since residues will fall from the workpiece after demoulding, the next injection molding operation will be affected. After the hydraulic cylinder 12 lifts the upper mold base 23, the staff controls the rotation of the second motor 25, so that the threaded rod 18 drives the cleaning member 20 to move to the inside of the lower mold base 10 and the upper mold base 23, and it will also rotate at the same time, thereby cleaning the lower mold 11 and the upper mold 21, thereby effectively avoiding the occurrence of a reduction in the yield rate due to residues.

[0029] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary; under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of the present invention as above, which are not provided in detail for the sake of simplicity.

[0030] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A special-shaped parts injection mold, characterized in that: include: Mounting plate (1); A lower die base (10) is arranged on the mounting plate (1); A lower mold (11) fixedly arranged on the lower mold base (10); An upper mold base (23) is arranged directly above the lower mold (11); An upper mold (21) is arranged on the upper mold base (23); An injection molding tube (22) fixedly arranged on the upper mold base (23); A connecting plate (13) fixedly arranged on the mounting plate (1); A hydraulic cylinder (12) fixedly disposed on the connecting plate (13) and used for supporting an upper die seat (23); A cleaning member (20) is disposed on the connecting plate (13) and is used for cleaning the upper mold (21) and the lower mold (11); A second motor (25) is fixedly connected to the connecting plate (13); a rotating shaft (26) is provided at the output end of the second motor (25); a gear (15) is fixedly connected to the rotating shaft (26); a crank (16) is fixedly connected to the gear (15); a ball valve (17) is rotatably connected to the crank (16); and the ball valve (17) and the gear (15) are rotatably connected via the crank (16).

2. The special-shaped parts injection mold according to claim 1, characterized in that: A first slider (3) is slidably connected to the mounting plate (1), a first motor (2) is fixedly connected to the first slider (3), a main shaft (6) is provided at the output end of the first motor (2), a connecting member (7) is fixedly connected to the main shaft (6), a second slider (8) is rotatably provided on the main shaft (6), a second spring (9) is fixedly provided on the second slider (8), the second spring (9) is fixedly connected to the mounting plate (1), a first spring (4) is fixedly provided on the first slider (3), the first spring (4) is fixedly connected to the mounting plate (1), and the second slider (8) is fixedly connected to the lower die base (10).

3. The special-shaped parts injection mold according to claim 2, characterized in that: The mounting plate (1) is provided with a slide groove (5), the slide groove (5) is slidably connected to a first sliding block (3), and the first sliding block (3) and the mounting plate (1) are slidably connected via the slide groove (5).

4. The special-shaped parts injection mold according to claim 3, characterized in that: The gear (15) is meshingly connected with a circular rack (14), the circular rack (14) is fixedly connected to the connecting plate (13), the gear (15) is rotatably connected with a ball valve (17), the ball valve (17) is rotatably connected with a threaded rod (18), the threaded rod (18) is threadedly connected to the circular rack (14), and the threaded rod (18) is fixedly connected to the cleaning member (20).

5. The special-shaped parts injection mold according to claim 4, characterized in that: A circular plate (24) is fixedly connected to the rotating shaft (26), a gear (15) is fixedly connected to the circular plate (24), and the gear (15) and the rotating shaft (26) are fixedly connected via the circular plate (24).

6. The special-shaped parts injection mold according to claim 4, characterized in that: A hanging ear (19) is fixedly connected to the circular rack (14), a threaded rod (18) is threadedly connected to the hanging ear (19), and the threaded rod (18) and the circular rack (14) are threadedly connected via the hanging ear (19).

7. The special-shaped parts injection mold according to claim 1, characterized in that: The connecting plate (13) is fixedly connected to a hydraulic cylinder (12), and the hydraulic cylinder (12) is in contact with an upper die seat (23).

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