Mold opening anti-vibration device for injection mold

Abstract

The invention relates to the technical field of injection molds, and discloses an injection mold opening anti-vibration device which comprises a movable mold plate body, a limiting block is slidably connected to the outer wall of the movable mold plate body, limiting grooves are formed in the two sides of the outer wall of the movable mold plate body, and a main body frame is fixedly connected to the outer wall of the limiting block; the outer wall of the main body frame is slidably connected to the outer wall of the movable mold plate body, the inner wall of the main body frame is fixedly connected with a sliding column, the outer wall of the sliding column is slidably connected to the inner wall of the movable mold plate body, a sliding groove is formed in the inner wall of the movable mold plate body, and a spring is arranged on the outer wall of the movable mold plate body. Vibration is caused by sudden change of demolding resistance of a plastic part, the vibration is transmitted to the damper and synchronously acts on the spring, the sliding column slides into the sliding groove in the movable mold plate body, vibration generated during mold opening of the movable mold plate body is buffered by means of cooperation of the spring and the damper, the vibration influence is reduced, mold opening vibration control over the injection molding part is effectively achieved, and the service life of the movable mold plate body is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and particularly to an anti-vibration device for opening an injection mold. Background Art

[0002] With the growth in the demand for plastic products, injection molding technology has developed rapidly. In the process of continuous innovation in the manufacturing industry, injection mold technology has been evolving. Since its inception, with its efficient and precise molding capabilities, it has been widely used in many fields such as automotive, electronics, and household appliances, greatly promoting the process of large-scale production of products.

[0003] However, in the actual use of traditional molds during injection molding, especially during the mold opening stage, the vibration phenomenon caused by unbalanced mechanical forces will reduce the mold life. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an anti-vibration device for opening an injection mold, which solves the problem that the vibration phenomenon caused by unbalanced mechanical forces during the actual use of injection molding, especially during the mold opening stage, will reduce the mold life.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An anti-vibration device for opening an injection mold includes a movable template body. A limiting block is slidably connected to the outer wall of the movable template body. Limiting grooves are provided on both sides of the outer wall of the movable template body. A main frame is fixedly connected to the outer wall of the limiting block. The outer wall of the main frame is slidably connected to the outer wall of the movable template body. A sliding column is fixedly connected to the inner wall of the main frame. The outer wall of the sliding column is slidably connected to the inner wall of the movable template body. A sliding groove is provided on the inner wall of the movable template body. A spring is provided on the outer wall of the movable template body. A damping is provided on the inner wall of the main frame. The damping is in contact with the movable template body. A fixing block is fixedly connected to the outer wall of the main frame. A sliding rod is slidably connected to the inner wall of the fixing block. A slider is fixedly connected to the outer wall of the sliding rod. The outer wall of the slider is slidably connected to an auxiliary box. An anti-slip strip is provided on the outer wall of the auxiliary box. An expansion and contraction assembly is provided on the outer wall of the movable template body, and the expansion and contraction assembly is used to assist the movement of the slider.

[0006] Preferably, the outer wall of the limiting block is slidably connected to the inner wall of the limiting groove, the outer wall of the sliding column is slidably connected to the inner wall of the sliding groove, and the outer wall of the spring is fixedly connected to the outer wall of the main frame.

[0007] Preferably, the expansion and contraction assembly includes a hollow column. The outer wall of the hollow column is fixedly connected to the outer wall of the main frame. A connecting column is slidably connected to the inner wall of the hollow column. The outer wall of the connecting column is fixedly connected to the outer wall of the slider.

[0008] Preferably, a threaded column is threadedly connected to the inner wall of the fixed block, a rotating column is fixedly connected to the outer wall of the threaded column, and the outer wall of the rotating column is rotatably connected to the outer wall of the sliding rod.

[0009] Preferably, a cavity is formed in the inner wall of the fixed block, and the outer wall of the sliding rod is slidably connected to the inner wall of the cavity.

[0010] Preferably, a column is slidably connected to the inner wall of the slider, both ends of the column are fixedly connected to the inner wall of the auxiliary box, and the outer wall of the slider is slidably connected to the inner wall of the auxiliary box.

[0011] Preferably, the lower surface of the auxiliary box is attached to the upper surface of the injection molding machine, and the outer wall of the anti-slip strip is attached to the inner wall of the injection molding machine.

[0012] Preferably, a fixed shell is fixedly connected to the outer wall of the auxiliary box, a self-locking motor is fixedly connected to the outer wall of the fixed shell, a cross column is provided at the output end of the self-locking motor, a gear is fixedly connected to the outer wall of the cross column, the tooth end of the gear is meshed with a rack plate, a support plate is fixedly connected to the upper surface of the rack plate, and the lower surface of the support plate is attached to the upper surface of the fixed shell.

[0013] Preferably, the outer wall of the cross column is rotatably connected to the inner wall of the fixed shell, and the outer wall of the rack plate is slidably connected to the inner wall of the fixed shell.

[0014] Preferably, the upper surface of the support plate is attached to the inner wall of the injection molding machine, and the support plate is rectangular.

[0015] Working principle: When the device needs to be used, first align the limit block with the limit groove and slidably install the main frame on the outer wall of the moving template body, so that the damping is attached to the outer wall of the moving template body. At this time, the sliding column slides into the sliding groove formed in the moving template body, and the spring is attached to the moving template body. Synchronously, place the auxiliary box above the injection molding machine. Through the cooperation of the sliding rod, the slider and the auxiliary box, the main frame is fixed on the outer wall of the moving template body. When the demolding resistance of the plastic part suddenly changes, vibrations will be caused. When the moving template body is subjected to vibrations, the force of the vibrations will act on the damping. At this time, the spring is also acted on synchronously, and the sliding column enters the sliding groove formed in the moving template body. Through the cooperation of the spring and the damping, the vibration during the mold opening of the moving template body is buffered to reduce the vibration effect, realizing the vibration control during the mold opening process of the injection molded part and improving the service life of the moving template body; According to the different positions of the moving template body, rotating the rotating column drives the threaded column to rotate. Due to the threaded connection between the threaded column and the fixed block, the threaded column is driven to move forward, and then the sliding rod is driven to move forward. Since the sliding rod moves on the inner wall of the cavity, the sliding rod can only move linearly forward and backward, and then the slider is pushed to move. The movement of the slider synchronously pushes the auxiliary box to move, so that the anti-slip strip fits against the inner wall of the injection molding machine, and then the main frame is supported and fixed, which can support the main frame according to the positions of different moving template bodies, achieving the effect of improving the practicability of the device; After the position of the auxiliary box is stabilized, start the self-locking motor to drive the cross column to rotate, and then drive the gear to rotate. Due to the meshing of the gear and the rack plate, the rotation of the gear drives the rack plate to move on the inner wall of the fixed shell. The fixed shell plays a role of supporting and limiting the rack plate, so that the rack plate is always meshed with the tooth end of the gear, and the effect of preventing the rack plate from falling off is achieved, thereby driving the support plate to contact the inner top wall of the injection molding machine. At this time, the self-locking motor is powered off, the electromagnetic brake is de-energized, and the brake pads tightly hold the motor shaft to generate a frictional torque, thereby preventing the motor shaft from rotating and realizing self-locking. This is the prior art and will not be elaborated too much, achieving the effect of making the support provided by the auxiliary box for the main frame more stable and improving the service life of the device; That is, the device can not only achieve the vibration control during the mold opening process of the injection molded part and improve the service life of the moving template body, but also adapt to the positions of different moving template bodies to support the main frame, achieving the effect of improving the practicability of the device. Finally, it can also achieve the effect of making the support and fixation provided by the auxiliary box for the main frame more stable and improving the service life of the device.

[0016] The present invention provides an anti-vibration device for mold opening of an injection mold. It has the following beneficial effects: 1. In the present invention, the sudden change in the demolding resistance of the plastic part causes vibration. The moving template body is stressed, and the vibration is transmitted to the damper and acts on the spring synchronously. The sliding column slides into the sliding groove in the moving template body. With the cooperation of the spring and the damper, the vibration during the mold opening of the moving template body is buffered, the vibration influence is reduced, and the vibration control during the mold opening of the injection molded part is effectively realized, improving the service life of the moving template body.

[0017] 2. In the present invention, rotating the rotating column drives the threaded column to rotate. Due to the threaded connection between the threaded column and the fixed block, the threaded column is driven to move forward, driving the sliding rod and the slider forward, and synchronously pushing the auxiliary box, so that the anti-slip strip fits against the inner wall of the injection molding machine, supporting and fixing the main frame, so that support can be provided according to the positions of different moving template bodies, effectively improving the practicability of the device.

[0018] 3. In the present invention, the self-locking motor is started to drive the cross-column to rotate, driving the gear to rotate. Since the gear meshes with the rack plate, the rack plate is driven to move on the inner wall of the fixed housing. The fixed housing supports and limits the rack plate to ensure that the two always mesh and prevent the rack plate from falling off. Furthermore, the support plate is driven to contact the inner top wall of the injection molding machine, making the auxiliary box support the main frame more firmly and improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of the present invention; Figure 2 is a partial structural schematic diagram of the main frame of the present invention; Figure 3 is a partial structural schematic diagram of the spring of the present invention; Figure 4 is a cross-sectional schematic diagram of the internal structure of the fixed block of the present invention; Figure 5 is Figure 4 an enlarged schematic view of part A of Figure 6 is a partial structural schematic diagram of the limit block of the present invention; Figure 7 is a partial structural schematic diagram of the column of the present invention; Figure 8 is Figure 7 an enlarged schematic view of part B of

[0020] Among them, 1. Moving template body; 2. Limit block; 3. Limit groove; 4. Main frame; 5. Sliding column; 6. Sliding groove; 7. Spring; 8. Damping; 9. Fixed block; 10. Sliding rod; 11. Slide block; 12. Auxiliary box; 13. Anti-slip strip; 14. Threaded column; 15. Rotating column; 16. Cavity; 17. Column; 18. Fixed housing; 19. Self-locking motor; 20. Cross-column; 21. Gear; 22. Rack plate; 23. Support plate; 24. Telescopic assembly; 2401. Hollow column; 2402. Connecting column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0022] Please refer to the attached Figure 1 -attached Figure 8, an embodiment of the present invention provides an anti-vibration device for mold opening of an injection mold, which includes a movable template body 1. A limit block 2 is slidably connected to the outer wall of the movable template body 1. Limit grooves 3 are provided on both sides of the outer wall of the movable template body 1. A main body frame 4 is fixedly connected to the outer wall of the limit block 2. The outer wall of the main body frame 4 is slidably connected to the outer wall of the movable template body 1. A sliding column 5 is fixedly connected to the inner wall of the main body frame 4. The outer wall of the sliding column 5 is slidably connected to the inner wall of the movable template body 1. A sliding groove 6 is provided on the inner wall of the movable template body 1. A spring 7 is provided on the outer wall of the movable template body 1. A damper 8 is provided on the inner wall of the main body frame 4. The damper 8 is in contact with the movable template body 1. A fixing block 9 is fixedly connected to the outer wall of the main body frame 4. A sliding rod 10 is slidably connected to the inner wall of the fixing block 9. A slider 11 is fixedly connected to the outer wall of the sliding rod 10. The outer wall of the slider 11 is slidably connected to an auxiliary box 12. An anti-slip strip 13 is provided on the outer wall of the auxiliary box 12. A telescopic assembly 24 is provided on the outer wall of the movable template body 1. The telescopic assembly 24 is used to assist the movement of the slider 11.

[0023] Specifically, by providing the limit groove 3 on the outer wall of the movable template body 1, it is convenient for the main body frame 4 to be attached to the outer wall of the movable template body 1 through the limit block 2, so that the outer walls of the damper 8 and the spring 7 are in contact with the outer wall of the movable template body 1. By sliding the sliding column 5 on the inner wall of the sliding groove 6, the sliding column 5 provides a basic support for the spring 7 to prevent the two elastic coils of the spring 7 from being stuck due to the vibration force of the movable template body 1. The sliding rod 10 and the slider 11 are connected to the main body frame 4 through the fixing block 9, so that the auxiliary box 12 provides basic limitation for the main body frame 4. The anti-slip strip 13 prevents the auxiliary box 12 from being displaced due to vibration. When the demolding resistance of the plastic part suddenly changes and causes vibration, it will first act on the damper 8 and the spring 7. Through the damper 8 and the spring 7, the vibration during the mold opening of the movable template body 1 is buffered to reduce the vibration effect, realizing the vibration control during the mold opening process of the injection molded part and improving the service life of the movable template body 1.

[0024] Please refer to the appendix Figure 1 、appendix Figure 2 and appendix Figure 3 , the outer wall of the limit block 2 is slidably connected to the inner wall of the limit groove 3, and the outer wall of the sliding column 5 is slidably connected to the inner wall of the sliding groove 6. The outer wall of the spring 7 is fixedly connected to the outer wall of the main body frame 4.

[0025] Specifically, by sliding the limit block 2 inside the limit groove 3, it is convenient to install the main body frame 4, so that the outer walls of the main body frame 4, the spring 7, and the damper 8 are in contact with the outer wall of the movable template body 1. By sliding the sliding column 5 on the inner wall of the sliding groove 6, a basic supporting force is provided for the spring 7. Through the connection between the spring 7 and the main body frame 4, when the spring 7 rebounds, the main body frame 4 provides a basic supporting force for the spring 7 and prevents the spring 7 from detaching.

[0026] Please refer to the attached Figure 1 , the attached Figure 4 and the attached Figure 5 , the telescopic assembly 24 includes a hollow column 2401, the outer wall of the hollow column 2401 is fixedly connected to the outer wall of the main frame 4, the inner wall of the hollow column 2401 is slidably connected to a connecting column 2402, and the outer wall of the connecting column 2402 is fixedly connected to the outer wall of the slider 11.

[0027] Specifically, through the connection between the hollow column 2401 and the main frame 4, and then through the connection between the connecting column 2402 and the slider 11, when the injection molding machine drives the moving template body 1 and the main frame 4 to move simultaneously, the main frame 4 can drive the slider 11 to move more stably through the sliding rod 10, the hollow column 2401 and the connecting column 2402.

[0028] Please refer to the attached Figure 4 , a threaded column 14 is threadedly connected to the inner wall of the fixed block 9, a rotating column 15 is fixedly connected to the outer wall of the threaded column 14, and the outer wall of the rotating column 15 is rotatably connected to the outer wall of the sliding rod 10.

[0029] Specifically, by rotating the rotating column 15 to drive the threaded column 14 to rotate, since the threaded column 14 is threadedly connected to the self-locking motor 19, the threaded column 14 moves forward, thereby driving the sliding rod 10 to move, and thus pushing the slider 11 and the auxiliary box 12 to move.

[0030] Please refer to the attached Figure 4 , a cavity 16 is formed in the inner wall of the fixed block 9, and the outer wall of the sliding rod 10 is slidably connected to the inner wall of the cavity 16.

[0031] Specifically, due to the limitation of the cavity 16, when the threaded column 14 rotates and moves, it will not drive the sliding rod 10 to rotate, so that the sliding rod 10 can only perform linear motion forward or backward, preventing the overall device from jamming.

[0032] Please refer to the attached Figure 4 , the attached Figure 6 and the attached Figure 7 , a column 17 is slidably connected to the inner wall of the slider 11, both ends of the column 17 are fixedly connected to the inner wall of the auxiliary box 12, and the outer wall of the slider 11 is slidably connected to the inner wall of the auxiliary box 12.

[0033] Specifically, by providing the column 17, when the slider 11 is driven by the sliding rod 10, the hollow column 2401 and the connecting column 2402, it will not tilt left and right due to the influence of friction, resulting in the slider 11 being stuck inside the auxiliary box 12.

[0034] Please refer to the attached Figure 4 and the attachedFigure 7 , the lower surface of the auxiliary box 12 is attached to the upper surface of the injection molding machine, and the outer wall of the anti-slip strip 13 is attached to the inner wall of the injection molding machine.

[0035] Specifically, by placing the auxiliary box 12 on the upper surface of the injection molding machine and making the outer wall of the anti-slip strip 13 fit the inner wall of the injection molding machine, the auxiliary box 12 plays a role in fixing the position of the main body frame 4.

[0036] Please refer to the appendix Figure 6 , appendix Figure 7 and appendix Figure 8 , a fixed shell 18 is fixedly connected to the outer wall of the auxiliary box 12, a self-locking motor 19 is fixedly connected to the outer wall of the fixed shell 18, a cross column 20 is arranged at the output end of the self-locking motor 19, a gear 21 is fixedly connected to the outer wall of the cross column 20, the tooth end of the gear 21 is meshed with a rack plate 22, a support plate 23 is fixedly connected to the upper surface of the rack plate 22, and the lower surface of the support plate 23 is attached to the upper surface of the fixed shell 18.

[0037] Specifically, the fixed shell 18 supports and fixes the position of the self-locking motor 19. The rotation of the cross column 20 and the gear 21 is driven by the self-locking motor 19. Since the gear 21 is meshed with the rack plate 22, the gear 21 pushes the rack plate 22 to move, thereby driving the support plate 23 to move, so that the upper surface of the support plate 23 fits the inner top wall of the injection molding machine. When the support plate 23 tightly fits the inner top wall of the injection molding machine, the self-locking motor 19 is powered off, the electromagnetic brake loses power, the brake pads tightly hold the motor shaft, generating a frictional torque, thereby preventing the motor shaft from rotating and realizing self-locking, so as to achieve the effect of making the support provided by the auxiliary box 12 for the main body frame 4 more stable and improving the service life of the device.

[0038] Please refer to the appendix Figure 8 , the outer wall of the cross column 20 is rotatably connected to the inner wall of the fixed shell 18, and the outer wall of the rack plate 22 is slidably connected to the inner wall of the fixed shell 18.

[0039] Specifically, the rotation of the cross column 20 in the fixed shell 18 provides basic support for the gear 21 and restricts the position of the gear 21. By sliding the rack plate 22 on the inner wall of the fixed shell 18, it prevents the rack plate 22 from disengaging from the gear 21 and falling off.

[0040] Please refer to the appendix Figure 6 and appendix Figure 7 , the upper surface of the support plate 23 is attached to the inner wall of the injection molding machine, and the support plate 23 is rectangular.

[0041] Specifically, by making the support plate 23 fit the inner top wall of the injection molding machine and the support plate 23 being rectangular, the contact area between the support plate 23 and the inner top wall of the injection molding machine is larger, making it more stable.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold opening anti-vibration device, including a moving template body (1), characterized in that, The outer wall of the moving template body (1) is slidably connected with a limiting block (2). Limiting grooves (3) are provided on both sides of the outer wall of the moving template body (1). The outer wall of the limiting block (2) is fixedly connected with a main body frame (4). The outer wall of the main body frame (4) is slidably connected to the outer wall of the moving template body (1). A sliding column (5) is fixedly connected to the inner wall of the main body frame (4). The outer wall of the sliding column (5) is slidably connected to the inner wall of the moving template body (1). A sliding groove (6) is provided on the inner wall of the moving template body (1). A spring (7) is arranged on the outer wall of the moving template body (1). A damper (8) is arranged on the inner wall of the main body frame (4). The damper (8) is in contact with the moving template body (1). A fixing block (9) is fixedly connected to the outer wall of the main body frame (4). A sliding rod (10) is slidably connected to the inner wall of the fixing block (9). A slider (11) is fixedly connected to the outer wall of the sliding rod (10). The outer wall of the slider (11) is slidably connected to an auxiliary box (12). An anti-slip strip (13) is arranged on the outer wall of the auxiliary box (12). A telescopic component (24) is arranged on the outer wall of the moving template body (1). The telescopic component (24) is used to assist the movement of the slider (11).

2. The injection mold opening anti-vibration device according to claim 1, characterized in that, The outer wall of the limiting block (2) is slidably connected to the inner wall of the limiting groove (3). The outer wall of the sliding column (5) is slidably connected to the inner wall of the sliding groove (6). The outer wall of the spring (7) is fixedly connected to the outer wall of the main body frame (4).

3. The injection mold opening anti-vibration device according to claim 1, characterized in that, The telescopic component (24) includes a hollow column (2401). The outer wall of the hollow column (2401) is fixedly connected to the outer wall of the main body frame (4). A connecting column (2402) is slidably connected to the inner wall of the hollow column (2401). The outer wall of the connecting column (2402) is fixedly connected to the outer wall of the slider (11).

4. The injection mold opening anti-vibration device according to claim 1, wherein A threaded column (14) is threadedly connected to the inner wall of the fixing block (9). A rotating column (15) is fixedly connected to the outer wall of the threaded column (14). The outer wall of the rotating column (15) is rotatably connected to the outer wall of the sliding rod (10).

5. An injection mold opening anti-vibration device according to claim 1, characterized in that, A cavity (16) is provided on the inner wall of the fixing block (9). The outer wall of the sliding rod (10) is slidably connected to the inner wall of the cavity (16).

6. The anti-vibration device for injection mold opening according to claim 1, wherein, A column (17) is slidably connected to the inner wall of the slider (11). Both ends of the column (17) are fixedly connected to the inner wall of the auxiliary box (12). The outer wall of the slider (11) is slidably connected to the inner wall of the auxiliary box (12).

7. The opening vibration-proof device for an injection mold according to claim 1, wherein The lower surface of the auxiliary box (12) is in contact with the upper surface of the injection molding machine. The outer wall of the anti-slip strip (13) is in contact with the inner wall of the injection molding machine.

8. A mold opening anti-vibration device for an injection mold according to claim 1, characterized in that, The outer wall of the auxiliary box (12) is fixedly connected with a fixed shell (18). The outer wall of the fixed shell (18) is fixedly connected with a self-locking motor (19). The output end of the self-locking motor (19) is provided with a cross column (20). The outer wall of the cross column (20) is fixedly connected with a gear (21). The tooth end of the gear (21) is meshed with a rack plate (22). The upper surface of the rack plate (22) is fixedly connected with a support plate (23). The lower surface of the support plate (23) is attached to the upper surface of the fixed shell (18).

9. The opening anti-vibration device for an injection mold according to claim 8, wherein, The outer wall of the cross column (20) is rotatably connected to the inner wall of the fixed shell (18). The outer wall of the rack plate (22) is slidably connected to the inner wall of the fixed shell (18).

10. A mold opening anti-vibration device for an injection mold according to claim 8, characterized in that, The upper surface of the support plate (23) is attached to the inner wall of the injection molding machine. The support plate (23) is rectangular in shape.

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