Ejection structure of injection mold

Abstract

The utility model relates to the technical field of injection molds, and discloses an ejection structure of an injection mold, which comprises a punching machine, an electric telescopic rod I is fixedly assembled at the top of the punching machine, an upper mold is fixedly assembled on an output shaft of the electric telescopic rod I, and a lower mold is arranged on the inner wall of the punching machine. According to the ejection structure of the injection mold, through the arrangement of a punching machine, a first electric telescopic rod, a second electric telescopic rod, a cam, a rotating rod, a movable rod, a reset spring and a vertical rod structure, in the demolding operation process of the device, a user can rotate the cam through operation of a motor; therefore, the vertical rod is pushed to drive the movable rod and the limiting ring to move so as to compress the reset spring, the cam is separated from the vertical rod after the cam rotates by 80 degrees, the movable rod is automatically reset through the elasticity of the reset spring so as to form knocking on the lower die, then the influence of the bonding condition on the product quality is avoided, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an ejection structure for an injection mold. Background Technology

[0002] Injection molds are a type of mold widely used in industrial production. They mainly consist of a fixed mold, a moving mold, and an ejection mechanism.

[0003] While existing molds can eject products during use, they simply apply force to the shaped product to push it out. When adhesion occurs, this can easily lead to product damage and affect product quality, thus reducing the practicality of the existing mold ejection structure. Therefore, we propose an ejection structure for injection molds. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an ejection structure for injection molds, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: an ejection structure for an injection mold, including a stamping machine. An electric telescopic rod is fixedly mounted on the top of the stamping machine. An upper mold is fixedly mounted on the output shaft of the electric telescopic rod. A lower mold is provided on the inner wall of the stamping machine. A movable groove is formed on the inner wall of the lower mold. An electric telescopic rod is fixedly mounted on the bottom of the movable groove. A push plate is fixedly mounted on the output shaft of the electric telescopic rod. A fixing frame is fixedly mounted on the left side of the stamping machine. A fixing frame is fixedly mounted on the right side of the stamping machine. A motor is fixedly mounted on the bottom of the fixing frame. The output shaft of the motor is fixedly mounted on... The machine has a gear 1, with a gear 2 meshing on its outer wall. A transmission wheel 2 is fixedly mounted on the top of the gear 2. A transmission belt is tumblingly connected to the middle of the transmission wheel 2, and a transmission wheel 1 is tumblingly connected to the end of the transmission belt. A positioning plate is provided above the fixed frame 2. A rotating rod is fixedly mounted on the top of both the transmission wheel 1 and the gear 1. A cam is fixedly mounted on the top of the rotating rod. An installation groove is provided in the middle of the stamping machine. A limit ring is fitted on the inner wall of the installation groove. A return spring is abutted against the outer wall of the limit ring. A movable rod is fixedly fitted on the inner wall of the limit ring. A vertical rod is fixedly mounted on the end of the movable rod near the cam.

[0006] As a preferred technical solution of this utility model, the outer wall of the push plate is slidably connected to the inner wall of the movable groove, and after the push plate moves upward by 5cm, its top is on the same horizontal plane as the top of the lower mold.

[0007] As a preferred technical solution of this utility model, both the top of the fixing frame and the positioning plate are provided with positioning holes, and the inner wall of the positioning hole is rotatably connected to the outer wall of the rotating rod.

[0008] In a preferred embodiment of this utility model, the first transmission wheel is connected to the second transmission wheel via a transmission belt, and the outer wall of the positioning plate is fixedly assembled with the outer wall of the stamping machine.

[0009] As a preferred embodiment of this utility model, the outer wall of the limiting ring is slidably connected to the inner wall of the mounting groove, and the end of the return spring away from the limiting ring abuts against the inner wall of the mounting groove.

[0010] As a preferred embodiment of this utility model, there are two movable rods, and both movable rods are symmetrically distributed along the outer wall of the stamping machine.

[0011] As a preferred embodiment of this utility model, the inner wall of the mounting groove is provided with a through hole extending to the inner wall of the movable groove, and the inner wall of the through hole is slidably connected to the outer wall of the movable rod.

[0012] In a preferred embodiment of this invention, the outer wall of the cam overlaps with the outer wall of the upright, and the cam separates from the upright after rotating 80°.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The ejection structure of this injection mold, through the arrangement of a stamping machine, an electric telescopic rod one, an electric telescopic rod two, a cam, a rotating rod, a movable rod, a return spring, and a vertical rod, allows the user to first rotate the cam by operating the motor. This pushes the vertical rod, causing the movable rod and the limit ring to move and compress the return spring. After the cam rotates 80 degrees, it disengages from the vertical rod, and the elasticity of the return spring automatically resets the movable rod, striking the lower mold. This avoids the impact of adhesion on product quality and improves the practicality of the device.

[0015] 2. The ejection structure of the injection mold is constructed by a motor, gear one, gear two, transmission belt, transmission wheel one, fixed frame one, fixed frame two, and transmission wheel. This structure allows a single motor to synchronously drive two cams to rotate in different directions through the operation of the transmission mechanism. This reduces the number of motors used and the energy consumption of the device, thereby improving the energy utilization rate of the device and reducing its production cost. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a side sectional view of the present invention.

[0019] Figure 4 This is a schematic diagram of the transmission belt structure of this utility model.

[0020] In the diagram: 1. Stamping machine; 2. Electric telescopic rod one; 3. Upper mold; 4. Lower mold; 5. Push plate; 6. Fixed frame one; 7. Motor; 8. Fixed frame two; 9. Cam; 10. Rotating rod; 11. Movable rod; 12. Vertical rod; 13. Transmission wheel one; 14. Transmission belt; 15. Positioning plate; 16. Mounting groove; 17. Return spring; 18. Limit ring; 19. Movable groove; 20. Electric telescopic rod two; 21. Gear one; 22. Gear two; 23. Transmission wheel two. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 An ejection structure for an injection mold includes a press 1. An electric telescopic rod 2 is fixedly mounted on the top of the press 1. An upper mold 3 is fixedly mounted on the output shaft of the electric telescopic rod 2. A lower mold 4 is provided on the inner wall of the press 1. A movable groove 19 is formed on the inner wall of the lower mold 4. An electric telescopic rod 20 is fixedly mounted on the bottom of the inner wall of the movable groove 19. A push plate 5 is fixedly mounted on the output shaft of the electric telescopic rod 20. A fixing frame 6 is fixedly mounted on the left side of the press 1. A fixing frame 8 is fixedly mounted on the right side of the press 1. A motor 7 is fixedly mounted on the bottom of the fixing frame 6. A gear 21 is fixedly mounted on the output shaft of the motor 7. The outer wall of the gear 21 meshes with... There is a gear 22, and a transmission wheel 23 is fixedly mounted on the top of the gear 22. A transmission belt 14 is rolledly connected to the middle of the transmission wheel 23. A transmission wheel 13 is rolledly connected to the end of the transmission belt 14. A positioning plate 15 is provided above the fixed frame 28. A rotating rod 10 is fixedly mounted on the top of both the transmission wheel 13 and the gear 21. A cam 9 is fixedly mounted on the top of the rotating rod 10. An installation groove 16 is opened in the middle of the stamping machine 1. A limit ring 18 is sleeved on the inner wall of the installation groove 16. A return spring 17 abuts against the outer wall of the limit ring 18. A movable rod 11 is fixedly sleeved on the inner wall of the limit ring 18. A vertical rod 12 is fixedly mounted on the end of the movable rod 11 near the cam 9.

[0023] In the above structure, the punch press 1, electric telescopic rod 1, upper mold 3, lower mold 4, push plate 5, cam 9, mounting groove 16, return spring 17, limit ring 18, cam 9, electric telescopic rod 20, movable rod 11, and upright rod 12 are configured so that during use, after injection molding and shaping, the user can rotate the cam 9 by operating the motor 7. This allows the cam 9 to push the upright rod 12, causing the limit ring 18 to compress the return spring 17, thereby disengaging the movable rod 11 from the lower mold 4. When the cam 9 rotates 80°, it disengages from the upright rod 12, allowing the movable rod 11 to automatically return and strike the lower mold 4. Combined with the extension of the output shaft of the electric telescopic rod 20, the product is ejected, ensuring that the user can quickly demold the product and improving the practicality of the device.

[0024] In a preferred embodiment, the outer wall of the push plate 5 is slidably connected to the inner wall of the movable groove 19, and after the push plate 5 moves upward by 5cm, its top is at the same horizontal plane as the top of the lower mold 4.

[0025] In the above structure, through the push plate 5 structure, after the movable rod 11 strikes the mold 4, the push plate 5 will lift and cause the product to move upward, thereby achieving the effect of ejecting the product, which makes it convenient for the user to recycle the product and ensures the normal use of the device.

[0026] In a preferred embodiment, both the top of the fixing frame 6 and the positioning plate 15 are provided with positioning holes, and the inner wall of the positioning hole is rotatably connected to the outer wall of the rotating rod 10.

[0027] In the above structure, the fixed frame 6 and the positioning plate 15 are used to limit the rotation of one of the rotating rods 10, thereby preventing the rotating rod 10 from tilting or even shifting position during rotation, thus improving the stability of the rotating rod 10 during rotation.

[0028] In a preferred embodiment, transmission wheel 13 is connected to transmission wheel 23 via transmission belt 14, and the outer wall of positioning plate 15 is fixedly assembled with the outer wall of stamping machine 1.

[0029] In the above structure, the transmission wheel 13 and transmission belt 14 enable the motor 7 to drive the gear 21 to rotate during operation, thereby allowing the gear 21 to mesh with the gear 22. Combined with the transmission action of the transmission belt 14, the transmission wheel 13 and the gear 21 rotate in opposite directions, thus enabling the two movable rods 11 to move in different directions. This ensures that both sides of the lower mold 4 are struck, guaranteeing the demolding effect of the product. At the same time, the operation of a single motor 7 can make the two movable rods 11 move synchronously, improving the energy utilization rate of the device and reducing the production cost of the device.

[0030] In a preferred embodiment, the outer wall of the limiting ring 18 is slidably connected to the inner wall of the mounting groove 16, and the end of the return spring 17 away from the limiting ring 18 abuts against the inner wall of the mounting groove 16.

[0031] In the above structure, the reset spring 17 structure will generate potential energy due to elasticity after the reset spring 17 is compressed, thereby ensuring that the limit ring 18 can drive the movable rod 11 to automatically reset after the cam 9 separates from the upright rod 12 and strike the lower mold 4, thereby improving the precision fit of the internal components of the device.

[0032] In a preferred embodiment, there are two movable rods 11, and both movable rods 11 are symmetrically distributed along the outer wall of the press 1.

[0033] In the above structure, the two movable rods 11 allow both sides of the lower mold 4 to be struck, thereby automatically separating the shaped product from the inner wall of the lower mold 4 without requiring manual demolding by the user. This reduces the user's workload and improves the user's work efficiency.

[0034] In a preferred embodiment, the inner wall of the mounting groove 16 is provided with a through hole extending to the inner wall of the movable groove 19, and the inner wall of the through hole is slidably connected to the outer wall of the movable rod 11.

[0035] In the above structure, through the through hole structure, the movable rod 11 can contact the lower mold 4 through the through hole after resetting, thereby realizing the effect of the movable rod 11 striking the lower mold 4, thus ensuring that the automatic demolding operation of the device can be carried out normally, and thus ensuring the normal operation of the device.

[0036] In a preferred embodiment, the outer wall of the cam 9 overlaps with the outer wall of the upright 12, and the cam 9 separates from the upright 12 after rotating 80°.

[0037] In the above structure, the cam 9 and the upright rod 12 are designed so that the rotation of the cam 9 can automatically push the movable rod 11 to move, thus eliminating the need for manual operation by the user. The operation process of the device is simple, which improves the automation of the device and further enhances its practicality.

[0038] Working principle: First, after the user shapes the material through the mold closing operation of the upper mold 3 and the lower mold 4, the motor 7 can be used to rotate both cams 9. This causes the upright rod 12 to be pushed, which in turn drives the movable rod 11 and the limit ring 18 to compress the return spring 17. When the cam 9 rotates 80°, it will disengage from the upright rod 12. The elasticity of the return spring 17 will cause the limit ring 18 to drive the movable rod 11 to return to its original position, thereby achieving the effect of striking both sides of the lower mold 4. This ensures that the product can be quickly demolded. After demolding, the user can use the extension of the output shaft of the electric telescopic rod 20 to push the push plate 5 out, making it convenient for the user to recycle the product. This improves the practicality of the device and the user's work efficiency. The operation of the motor 7 can drive the two cams 9 to rotate synchronously in different directions, thereby reducing the amount of motor 7 used, improving the energy utilization rate of the device, and reducing the production cost of the device.

[0039] 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. An ejection structure for an injection mold, characterized in that, The press includes a stamping machine (1), on the top of which is fixedly mounted an electric telescopic rod (2), and the output shaft of the electric telescopic rod (2) is fixedly mounted with an upper mold (3). The inner wall of the stamping machine (1) is provided with a lower mold (4), and the inner wall of the lower mold (4) is provided with a movable groove (19). The bottom of the inner wall of the movable groove (19) is fixedly mounted with an electric telescopic rod (20), and the output shaft of the electric telescopic rod (20) is fixedly mounted with a push plate (5). The left side of the stamping machine (1) is fixedly mounted with a fixed frame (6), and the right side of the stamping machine (1) is fixedly mounted with a fixed frame (8). The bottom of the fixed frame (6) is fixedly mounted with a motor (7), and the output shaft of the motor (7) is fixedly mounted with a gear (21). The outer wall of the gear (21) meshes with a gear (22). The top of the gear two (22) is fixedly fitted with a transmission wheel two (23), the middle of the transmission wheel two (23) is rolledly connected with a transmission belt (14), the end of the transmission belt (14) is rolledly connected with a transmission wheel one (13), a positioning plate (15) is provided above the fixed frame two (8), the top of the transmission wheel one (13) and the gear one (21) are both fixedly fitted with a rotating rod (10), the top of the rotating rod (10) is fixedly fitted with a cam (9), the middle of the stamping machine (1) is provided with an installation groove (16), the inner wall of the installation groove (16) is fitted with a limit ring (18), the outer wall of the limit ring (18) is in contact with a return spring (17), the inner wall of the limit ring (18) is fixedly fitted with a movable rod (11), and the end of the movable rod (11) near the cam (9) is fixedly fitted with a vertical rod (12).

2. The ejection structure of an injection mold according to claim 1, characterized in that, The outer wall of the push plate (5) is slidably connected to the inner wall of the movable groove (19), and after the push plate (5) moves upward by 5cm, its top is on the same horizontal plane as the top of the lower mold (4).

3. The ejection structure of an injection mold according to claim 1, characterized in that, The top of both the fixing frame (6) and the positioning plate (15) are provided with positioning holes, and the inner wall of the positioning hole is rotatably connected to the outer wall of the rotating rod (10).

4. The ejection structure of an injection mold according to claim 1, characterized in that, The first transmission wheel (13) is connected to the second transmission wheel (23) via the transmission belt (14), and the outer wall of the positioning plate (15) is fixedly assembled with the outer wall of the stamping machine (1).

5. The ejection structure of an injection mold according to claim 1, characterized in that, The outer wall of the limiting ring (18) is slidably connected to the inner wall of the mounting groove (16), and the end of the reset spring (17) away from the limiting ring (18) abuts against the inner wall of the mounting groove (16).

6. The ejection structure of an injection mold according to claim 1, characterized in that, There are two movable rods (11), and both movable rods (11) are symmetrically distributed along the outer wall of the press (1).

7. The ejection structure of an injection mold according to claim 1, characterized in that, The inner wall of the mounting groove (16) is provided with a through hole extending to the inner wall of the movable groove (19), and the inner wall of the through hole is slidably connected to the outer wall of the movable rod (11).

8. The ejection structure of an injection mold according to claim 1, characterized in that, The outer wall of the cam (9) overlaps with the outer wall of the upright (12), and the cam (9) separates from the upright (12) after rotating 80°.

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