Novel injection mold for injection molding machine

Abstract

The novel injection mold for the injection molding machine comprises a lower mold assembly, supporting vertical rods are fixedly connected to the four corners of the top end of the lower mold assembly, mounting branch pipes are fixedly connected to the tops of the supporting vertical rods, hydraulic telescopic cylinders are fixedly mounted at the tops of the mounting branch pipes, and a transmission assembly is fixedly connected to the interior of the lower mold assembly; the novel injection mold for the injection molding machine is divided into the lower mold assembly, the transmission assembly and the lifting assembly, a lifting transmission structure is changed, the lifting transmission structure is matched with the lifting transmission structure, the lifting transmission structure is matched with the lifting transmission structure, and the lifting transmission structure is matched with the lifting transmission structure. The electric telescopic rod is matched with gear transmission to lift and demold the demolding box, the lifting process is more stable and controllable, a large amount of potential energy does not impact the structure, the impact on the structure can be basically reduced by matching with the buffer cushion, the service life of the mold is longer, and the stability and usability of the mold are better.

Description

Technical Field

[0001] The utility model relates to the technical field of mold production, in particular to an injection mold for a new type of injection molding machine. Background Technique

[0002] An injection mold is a tool for producing plastic products and also a tool for endowing plastic products with a complete structure and precise dimensions. Injection molding is a processing method used when mass-producing some parts with complex shapes. Specifically, it means injecting the heat-melted plastic into the mold cavity under high pressure by an injection molding machine. After cooling and solidifying, a molded product is obtained. However, demolding is also an important step. Improper operation may damage the finished product. Most of the existing injection molds adopt ordinary demolding mechanisms. For example, an injection mold for an injection molding machine with the application number CN218139565U includes a workbench, a mounting frame fixedly installed at the upper end of the workbench, an electric telescopic rod installed on the mounting frame, and a lower mold assembly fixedly arranged on the upper end surface of the workbench. A fixed plate is fixedly installed at the bottom of the electric telescopic rod, and an upper template that cooperates with the lower mold assembly is fixedly arranged at the bottom of the fixed plate. The above common injection mold still has deficiencies:

[0003] There are defects in the lifting of the movable cover of the demolding mechanism, lacking a buffer mechanism. Just using a buffer pad is not enough to offset the vibration generated by negative pressure and spring tension, which has a greater impact on the overall structure of the mold, and will increase the wear of the lower mold after long-term use. Content of the Utility Model

[0004] The purpose of the utility model is to provide an injection mold for a new type of injection molding machine to solve the problems in the above background technique that there are defects in the lifting of the movable cover of the demolding mechanism, lacking a buffer mechanism, just using a buffer pad is not enough to offset the vibration generated by negative pressure and spring tension, which has a greater impact on the overall structure of the mold, and will increase the wear of the lower mold after long-term use.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An injection mold for a new type of injection molding machine includes a lower mold assembly. Four corners at the top of the lower mold assembly are fixedly connected with support vertical rods. The top of the support vertical rods is fixedly connected with mounting branch pipes. A hydraulic telescopic cylinder is fixedly installed at the top of the mounting branch pipes. A transmission component is fixedly connected inside the lower mold assembly. A lifting component is meshed and connected to one side of the transmission component. An upper template is matched directly above the lower mold assembly.

[0006] Preferably, the lower die assembly includes a lower die base. Both sides of the inner wall of the lower die base are provided with transmission cavities. The bottom of the inner wall of the lower die base is fixedly connected with a sliding rod. The top of the sliding rod is fixedly connected with a lower template. The surface of the sliding rod is slidably connected with a demolding box. A sliding hole is formed in the middle of the demolding box. A buffer pad is sleeved at the bottom of the sliding rod, which is beneficial to reducing the impact of potential energy on the structure. Cooperating with the buffer pad can basically reduce the impact on the structure, making the service life of the mold longer and the stability and usability of the mold better.

[0007] Preferably, the transmission component includes a mounting plate. An electric telescopic rod is fixedly installed on one side of the mounting plate. The output end of the electric telescopic rod is fixedly connected with a transmission gear plate. A support roller is arranged at the bottom of the transmission gear plate, which is beneficial to transmitting force through the meshing principle of the electric telescopic rod and the gear.

[0008] Preferably, the lifting component includes a connecting plate. One side of the top of the connecting plate is fixedly connected with a sleeve plate. A transmission shaft rod is rotatably connected inside the sleeve plate. One end of the transmission shaft rod is fixedly connected with a driving gear. The other end of the transmission shaft rod is fixedly connected with a transmission gear. The other side of the top of the connecting plate is fixedly connected with a sliding sleeve. A lifting gear rod is slidably connected inside the sliding sleeve. The top of the lifting gear rod is fixedly connected with a top plate. A communication hole is formed on the surface of the sliding sleeve. A guiding groove is formed inside the sliding sleeve. The bottom end of the lifting gear rod is fixedly connected with a guiding sliding plate, which is beneficial to lifting and demolding the demolding box through the cooperation of the electric telescopic rod and gear transmission. During the lifting process, it is more stable and controllable, and there will be no large amount of potential energy impacting the structure.

[0009] Preferably, the surface of the demolding box is slidably connected with the inside of the lower die base, and the surface of the sliding rod is slidably connected with the inside of the sliding hole.

[0010] Preferably, one end of the transmission gear plate is meshed with one side of the driving gear, and one end of the support roller is rollingly connected with the bottom of the transmission cavity, which is beneficial to providing a support during the movement of the gear plate and improving the stability of the structure.

[0011] Preferably, one side of the transmission shaft rod is meshed with one side of the transmission gear, and the surface of the guiding sliding plate is slidably connected with the inside of the guiding groove.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: It changes the transmission structure of lifting. The demolding box is lifted and demolded through the cooperation of the electric telescopic rod and gear transmission. During the lifting process, it is more stable and controllable, and there will be no large amount of potential energy impacting the structure. Cooperating with the buffer pad can basically reduce the impact on the structure, making the service life of the mold longer and the stability and usability of the mold better. Description of the Drawings

[0013] Figure 1 This is the structural diagram of the injection mold of the present utility model;

[0014] Figure 2 This is the structural diagram of the lower mold assembly of the injection mold of the present utility model;

[0015] Figure 3 This is the structural diagram of the transmission assembly of the injection mold of the present utility model;

[0016] Figure 4 This is the structural diagram of the lifting assembly of the injection mold of the present utility model.

[0017] In the figure: 1. Hydraulic telescopic cylinder; 2. Lower mold assembly; 21. Lower mold base; 22. Transmission cavity; 23. Lower template; 24. Demoulding box; 25. Buffer pad; 26. Sliding rod; 3. Support vertical rod; 4. Installation branch pipe; 5. Transmission assembly; 51. Installation plate; 52. Electric telescopic rod; 53. Transmission toothed plate; 54. Support roller; 6. Lifting assembly; 61. Connecting plate; 62. Bushing plate; 63. Transmission shaft rod; 64. Driving gear; 65. Transmission gear; 66. Sliding sleeve; 67. Lifting toothed rod; 68. Top plate; 69. Communication hole; 7. Upper template. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0019] Please refer to Figures 1-4 , the present utility model provides an injection mold for a new type of injection molding machine, including a lower mold assembly 2. Four corners at the top of the lower mold assembly 2 are fixedly connected with support vertical rods 3. The top of the support vertical rods 3 is fixedly connected with installation branch pipes 4. The top of the installation branch pipes 4 is fixedly installed with a hydraulic telescopic cylinder 1. A transmission assembly 5 is fixedly connected inside the lower mold assembly 2. One side of the transmission assembly 5 is meshed with a lifting assembly 6. An upper template 7 is matched directly above the lower mold assembly 2.

[0020] Refer to Figures 2-4, Further, the lower die assembly 2 includes a lower die base 21. Transmission cavities 22 are provided on both sides of the inner wall of the lower die base 21. A sliding rod 26 is fixedly connected to the bottom of the inner wall of the lower die base 21. The top of the sliding rod 26 is fixedly connected to a lower template 23. A demolding box 24 is slidably connected to the surface of the sliding rod 26. A sliding hole is provided in the middle of the demolding box 24. A buffer pad 25 is sleeved on the bottom of the sliding rod 26. The transmission assembly 5 includes a mounting plate 51. An electric telescopic rod 52 is fixedly installed on one side of the mounting plate 51. The output end of the electric telescopic rod 52 is fixedly connected to a transmission toothed plate 53. A support roller 54 is provided at the bottom of the transmission toothed plate 53. The lifting assembly 6 includes a connecting plate 61. A sleeve plate 62 is fixedly connected to one side of the top of the connecting plate 61. A transmission shaft rod 63 is rotatably connected inside the sleeve plate 62. One end of the transmission shaft rod 63 is fixedly connected to a driving gear 64. The other end of the transmission shaft rod 63 is fixedly connected to a transmission gear 65. A sliding sleeve 66 is fixedly connected to the other side of the top of the connecting plate 61. A lifting toothed rod 67 is slidably connected inside the sliding sleeve 66. The top of the lifting toothed rod 67 is fixedly connected to a top plate 68. A communication hole 69 is provided on the surface of the sliding sleeve 66. A guiding groove is provided inside the sliding sleeve 66. A guiding sliding plate is fixedly connected to the bottom end of the lifting toothed rod 67;

[0021] During use, the electric telescopic rod 52 installed on the mounting plate 51 is started, thereby driving the transmission toothed plate 53 to move to one side. Then, the driving gear 64 meshed with the transmission toothed plate 53 rotates. The rotation of the driving gear 64 drives the transmission shaft rod 63 and the transmission gear 65 installed on the transmission shaft rod 63 to rotate. The transmission gear 65 is meshed with the lifting toothed rod 67 connected to the inside of the sliding sleeve 66 through the communication hole 69 for transmission. Then, when the transmission gear 65 rotates, the lifting toothed rod 67 will move in the vertical direction. And a guiding groove is provided inside the sliding sleeve 66 to prevent the problem of unstable meshing during use. A guiding sliding plate is installed at the bottom of the lifting toothed rod 67. The guiding groove is not opened through the entire inner wall of the sliding sleeve 66. In this way, cooperating with the guiding sliding plate can not only ensure the stability of the lifting meshing but also play a limiting role.

[0022] In the use of the embodiment of the present application: The transmission component 5 and the lifting component 6 are both installed inside the transmission cavity 22. After the mold is completed, the upper template 7 moves upward to open the mold. The demolding box 24 is started by the electric telescopic rod 52 installed on the mounting plate 51, and then drives the transmission tooth plate 53 to move to one side. Then, the driving gear 64 engaged with the transmission tooth plate 53 rotates. The rotation of the driving gear 64 drives the transmission shaft rod 63 and the transmission gear 65 installed on the transmission shaft rod 63 to rotate. The transmission gear 65 is engaged and driven with the lifting tooth rod 67 connected inside the sliding sleeve 66 through the communication hole 69. Then, when the transmission gear 65 rotates, the lifting tooth rod 67 will move in the vertical direction, and the manufactured product can be demolded and taken out by the rising of the demolding box 24. Then, the electric telescopic rod 52 retracts to the other side, the demolding box 24 moves downward and resets. The top plate 68 is fixedly connected to the bottom of the demolding box 24. When the demolding box 24 resets, its bottom contacts the buffer pad 25 for buffering, reducing the impact of potential energy on the mold structure and extending the service life of the mold. The support roller 54 can provide good support when the transmission tooth plate 53 moves and extends, making the transmission process more stable.

[0023] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A plastic injection mold for a new type of injection molding machine, comprising a lower mold assembly (2), characterized in that: At the four corners of the top end of the lower die assembly (2), there are support vertical rods (3) fixedly connected. At the top of the support vertical rods (3), there is an installation branch pipe (4) fixedly connected. At the top of the installation branch pipe (4), a hydraulic telescopic cylinder (1) is fixedly installed. Inside the lower die assembly (2), there is a transmission assembly (5) fixedly connected. On one side of the transmission assembly (5), there is a lifting assembly (6) meshingly connected. Above the lower die assembly (2), there is an upper template (7) which is matched with it.

2. The injection mold for a new type of injection molding machine according to claim 1, characterized in that: The lower die assembly (2) includes a lower die base (21). On both sides of the inner wall of the lower die base (21), there are transmission cavities (22) opened. At the bottom of the inner wall of the lower die base (21), there is a sliding rod (26) fixedly connected. At the top of the sliding rod (26), there is a lower template (23) fixedly connected. On the surface of the sliding rod (26), there is a demoulding box (24) slidably connected. In the middle of the demoulding box (24), there is a sliding hole opened. At the bottom of the sliding rod (26), there is a buffer pad (25) sleeved.

3. A plastic injection mold for a new type of injection molding machine according to claim 1, characterized in that: The transmission assembly (5) includes a mounting plate (51). On one side of the mounting plate (51), there is an electric telescopic rod (52) fixedly installed. At the output end of the electric telescopic rod (52), there is a transmission toothed plate (53) fixedly connected. At the bottom of the transmission toothed plate (53), there is a support roller (54).

4. A plastic injection mold for a new type of injection molding machine according to claim 1, characterized in that: The lifting assembly (6) includes a connecting plate (61). On one side of the top end of the connecting plate (61), there is a sleeve plate (62) fixedly connected. Inside the sleeve plate (62), there is a transmission shaft rod (63) rotatably connected. At one end of the transmission shaft rod (63), there is a driving gear (64) fixedly connected. At the other end of the transmission shaft rod (63), there is a transmission gear (65) fixedly connected. On the other side of the top end of the connecting plate (61), there is a sliding sleeve (66) fixedly connected. Inside the sliding sleeve (66), there is a lifting toothed rod (67) slidably connected. At the top of the lifting toothed rod (67), there is a top plate (68) fixedly connected. On the surface of the sliding sleeve (66), there is a communication hole (69) opened. Inside the sliding sleeve (66), there is a guiding groove. At the bottom end of the lifting toothed rod (67), there is a guiding sliding plate fixedly connected.

5. The injection mold for a new type of injection molding machine according to claim 2, characterized in that: The surface of the demoulding box (24) is slidably connected with the inside of the lower die base (21), and the surface of the sliding rod (26) is slidably connected with the inside of the sliding hole.

6. The injection mold for a new type of injection molding machine according to claim 3, characterized in that: One end of the transmission toothed plate (53) is meshingly connected with one side of the driving gear (64), and one end of the support roller (54) is rollingly connected with the bottom of the transmission cavity (22).

7. A plastic injection mold for a new type of injection molding machine according to claim 4, characterized in that: One side of the transmission shaft rod (63) is meshingly connected with one side of the transmission gear (65), and the inside of the guiding groove is slidably connected with the surface of the guiding sliding plate.

Images