Injection mold with rapid demolding function

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold with a quick demolding function, which comprises an upper mold seat and a lower mold seat, an air cylinder is fixedly mounted on the surface of the upper mold seat, a support is fixedly mounted on the bottom surface of the upper mold seat, an upper mold block is fixedly mounted on the bottom surface of the support, and a lower mold block is fixedly mounted on the lower surface of the upper mold seat. An upper die head is fixedly mounted in the upper die block, and a movable plate is slidably connected into the support. According to the utility model, the ejector rod slides in the sliding chute of the upper module, so that the ejector rod realizes vertical and accurate guiding, abrasion or blockage is obviously reduced, the service life of the mold is prolonged, and the product quality is improved. And the guide rods of the movable plate slide in the guide holes, so that the stability and the parallelism are enhanced, and the alignment precision of the mold under pressure or thermal expansion is ensured. Power of the air cylinder directly acts on the moving plate, so that the ejector rod directly applies force to a forming material, demolding is accelerated, the forming period is shortened, the driving efficiency and the response speed are improved, and the production process is effectively accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a rapid demoulding function. Background Art

[0002] An injection mold is a tool for producing plastic products; it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to injecting heated and melted plastic into a mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification. When the existing injection mold is used for injection molding, a cooling channel is arranged inside it for cooling after injection molding. Publication No.: CN215396558U discloses an injection mold for an injection molding machine, including a base, a mold assembly, and a temperature control device arranged on one side of the base and connected to the base. The mold assembly includes an upper mold base and a lower mold base, a lower mold guard plate is arranged on the lower mold base, and two left and right lower mold plates are arranged in the lower mold guard plate, an upper mold guard plate is arranged under the upper mold base, and two left and right upper mold plates are arranged in the upper mold guard plate. The design of the main pipeline and branch pipeline can inject molten raw materials into multiple molds at the same time, which improves the injection molding efficiency. The design of the temperature control device can reheat and keep the raw materials warm to prevent poor circulation due to the temperature process during the circulation process. At the same time, a servo motor is connected to the transmission screw, which can drive the upper mold base to move up and down, saving manpower when opening and closing the mold. At the same time, the four servo motors have the function of positioning the four corners. Most of the existing injection molds do not have the demolding function, the manual demolding efficiency is low, and the process is time-consuming and labor-intensive, so improvements are needed. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: an injection mold with a quick demoulding function, comprising an upper mold base and a lower mold base, a cylinder is fixedly installed on the surface of the upper mold base, a bracket is fixedly installed on the bottom surface of the upper mold base, an upper module is fixedly installed on the bottom surface of the bracket, an upper mold head is fixedly installed inside the upper module, a movable plate is slidably connected inside the bracket, a push rod is fixedly installed on the bottom surface of the movable plate, an air hole is opened between the upper module and the upper mold head, a limit frame is fixedly installed on the surface of the lower mold base, a lower module is fixedly installed inside the limit frame, and a lower mold head is fixedly installed inside the lower module.

[0005] Preferably, a slide groove is provided inside the upper die block, which is the same as the inside of the upper die head, and the ejector rod slides inside the slide groove. Here, accurate guidance and stable movement of the ejector rod in the vertical direction are ensured, and wear or jamming caused by deviation of the ejector rod from the center is reduced, thereby improving the service life of the mold and the quality of the product.

[0006] Preferably, a guide rod is fixedly mounted on the bottom surface of the movable plate, a guide hole is opened inside the upper die block, and the guide rod slides inside the guide hole. Here, the stability and parallelism of the movable plate in the upper die seat are further enhanced, which helps to ensure that the movable plate can maintain its linear motion under the influence of pressure or thermal expansion, thereby ensuring the alignment accuracy during the closing and opening of the mold.

[0007] Preferably, the upper module is embedded in the limiting frame, and the upper die head is embedded with the lower die head. Here, the mold can be accurately aligned when closed, thereby reducing the error of the product during the molding process and improving the dimensional accuracy and appearance quality of the molded product.

[0008] Preferably, the output end of the cylinder is fixedly connected to the surface of the moving plate, and the ejector rod is located in the center of the upper die head. Here, the power of the cylinder can be directly transmitted to the moving plate, thereby improving the driving efficiency and response speed, and can directly apply force to the molding material, which is conducive to the rapid demoulding of the mold and reducing the molding cycle time.

[0009] Preferably, the surface of the lower die head is slidably connected with a buffer plate, the bottom surface of the buffer plate is provided with an upper circular groove, the surface of the lower die block is provided with a lower circular groove, and a spring is fixedly installed between the upper circular groove and the lower circular groove. Here, a certain buffering effect can be provided when the mold is closed to protect the mold from damage caused by sudden impact. At the same time, the presence of the spring can help the buffer plate quickly return to its original position to prepare for the next injection cycle, thereby increasing the working efficiency and stability of the mold.

[0010] Preferably, a limit block is fixedly installed on the side of the buffer plate, and a limit slot is provided on the side of the limit frame, and the limit block slides inside the limit slot. Here, the movement range of the buffer plate can be limited during the movement of the mold to avoid failure due to exceeding the design range, thereby increasing the safety and reliability of the mold and ensuring smooth injection molding.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, by arranging air holes, cylinders, movable plates, ejector rods, slide grooves and limit frame structures, the ejector rods slide in the slide grooves in the upper module, thereby realizing precise guidance in the vertical direction, reducing wear or jamming caused by deviation of the ejector rods from the center, and significantly improving the service life of the mold and the quality of the injection molded products. The guide rods at the bottom of the movable plate slide in the guide holes in the upper module, thereby enhancing the stability and parallelism of the movable plate in the upper mold base, and helping to maintain its linear motion under the influence of pressure or thermal expansion, thereby ensuring the alignment accuracy during the closing and opening of the mold. The power of the cylinder is directly transmitted to the movable plate, and the ejector rod is located in the center of the upper mold head, which can directly apply force to the molding material, helping the mold to be quickly demolded and reducing the molding cycle time, thereby improving the driving efficiency and response speed, and facilitating speeding up the production process.

[0013] 2. In the utility model, by setting a limit block, a limit groove, a buffer plate, an upper circular groove, a lower circular groove and a spring structure, the surface of the lower die head is connected to the slidably connected buffer plate through a spring, which provides a certain buffering effect, can protect the mold from being damaged by sudden impact when the mold is closed, increase the stability of the mold and extend its service life, the presence of the spring helps the buffer plate to quickly return to its original position after being subjected to pressure, prepare for the next injection molding cycle, increase the working efficiency and stability of the mold, and make the production more continuous and efficient, the limit block installed on the side of the buffer plate slides in the limit groove opened on the side of the limit frame, which helps to limit the movement range of the buffer plate during the movement of the mold, avoid failure due to exceeding the design range, increase the safety and reliability of the mold, and ensure the smooth progress of the injection molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of an injection mold with a quick demoulding function is provided for the utility model;

[0015] Figure 2 A cross-sectional view of an injection mold with a quick demoulding function is proposed for the utility model;

[0016] Figure 3 A schematic diagram of an upper mold base of an injection mold with a quick demoulding function is provided for the utility model;

[0017] Figure 4 A schematic diagram of a lower mold base of an injection mold with a quick demoulding function is provided for the utility model;

[0018] Figure 5 The utility model provides a schematic diagram of a buffer plate of an injection mold with a quick demoulding function.

[0019] Legend:

[0020] 1. Upper die base; 2. Bracket; 3. Upper die block; 4. Cylinder; 5. Moving plate; 6. Guide rod; 7. Ejector rod; 8. Guide hole; 9. Upper die head; 10. Slide groove; 11. Air hole; 12. Lower die base; 13. Lower die block; 14. Lower die head; 15. Buffer plate; 16. Upper circular groove; 17. Limit block; 18. Limit groove; 19. Lower circular groove; 20. Spring; 21. Limit frame. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1

[0024] See also Figure 1-4The utility model provides a technical solution: an injection mold with a quick demoulding function, including an upper mold base 1 and a lower mold base 12, a cylinder 4 is fixedly installed on the surface of the upper mold base 1, a bracket 2 is fixedly installed on the bottom surface of the upper mold base 1, an upper module 3 is fixedly installed on the bottom surface of the bracket 2, an upper mold head 9 is fixedly installed inside the upper module 3, a moving plate 5 is slidably connected inside the bracket 2, a push rod 7 is fixedly installed on the bottom surface of the moving plate 5, a slide groove 10 is opened inside the upper module 3, the slide groove 10 is the same as the inside of the upper mold head 9, and the push rod 7 slides inside the slide groove 10, ensuring the precise guidance and stable movement of the push rod 7 in the vertical direction, reducing the wear or jamming caused by the deviation of the push rod 7 from the center, and improving the service life of the mold and the quality of the product, a guide rod 6 is fixedly installed on the bottom surface of the moving plate 5, a guide hole 8 is opened inside the upper module 3, and the guide rod 6 slides inside the guide hole 8, further enhancing the stability of the moving plate 5 in the upper mold base 1 The quality and parallelism help to ensure that the movable plate 5 can maintain its linear motion under the influence of pressure or thermal expansion, thereby ensuring the alignment accuracy during the closing and opening of the mold. An air hole 11 is opened between the upper module 3 and the upper die head 9. The surface of the lower mold base 12 is fixedly installed with a limit frame 21, and the interior of the limit frame 21 is fixedly installed with a lower module 13, and the interior of the lower module 13 is fixedly installed with a lower die head 14. The upper module 3 is embedded in the interior of the limit frame 21, and the upper die head 9 is embedded with the lower die head 14, so that the mold can be accurately aligned when closed, thereby reducing the error of the product during the molding process and improving the dimensional accuracy and appearance quality of the molded product. The output end of the cylinder 4 is fixedly connected to the surface of the movable plate 5, and the push rod 7 is located in the center of the upper die head 9, so that the power of the cylinder 4 can be directly transmitted to the movable plate 5, thereby improving the driving efficiency and response speed, and can directly apply force to the molding material, which is conducive to the rapid demolding of the mold and reducing the molding cycle time.

[0025] Embodiment 2

[0026] See also Figure 4-5 The surface of the lower die head 14 is slidably connected with a buffer plate 15, and an upper circular groove 16 is provided on the bottom surface of the buffer plate 15, and a lower circular groove 19 is provided on the surface of the lower module 13. A spring 20 is fixedly installed between the upper circular groove 16 and the lower circular groove 19, which can provide a certain buffering effect when the mold is closed to protect the mold from damage caused by sudden impact. At the same time, the presence of the spring 20 can help the buffer plate 15 to quickly return to its original position to prepare for the next injection molding cycle, thereby increasing the working efficiency and stability of the mold. A limit block 17 is fixedly installed on the side of the buffer plate 15, and a limit groove 18 is provided on the side of the limit frame 21. The limit block 17 slides inside the limit groove 18, which can limit the moving range of the buffer plate 15 during the movement of the mold to avoid failures due to exceeding the design range, thereby increasing the safety and reliability of the mold and ensuring the smooth progress of the injection molding process.

[0027] Working principle: the upper die base 1 and the lower die base 12 of the mold are closed under mechanical drive. The interior of the upper die base 1 includes a cylinder 4, a bracket 2 and an upper module 3. The upper module 3 is provided with an upper die head 9, which is embedded in the limit frame 21 to achieve precise alignment with the lower die head 14 in the lower die base 12 to ensure the size and shape accuracy of the molded product. After the mold is closed, the injection molding machine injects the molten plastic into the cavity formed by the upper die head 9 and the lower die head 14 through the nozzle. When the product is molded, the upper die base 1 is separated from the lower die base 12. At this time, the output end of the cylinder 4 is fixedly connected to the moving plate 5, providing power to move the moving plate 5 inside the bracket 2. At the same time, the moving plate 5 drives the guide rod 6 to slide inside the guide hole 8 to improve the stability of the moving plate 5, and the moving plate 5 drives the ejector rod 7 to slide in the slide groove 10 of the upper module 3, so that the ejector rod 7 can eject the molded product from the upper die head 9. Using the air hole 11, personnel can use the air nozzle to blow air into the upper die head 9 so that the molded product can be ejected. The product is blown out from the inside of the upper die head 9 to achieve rapid demoulding, improve work efficiency, and facilitate personnel use. During the closing process of the upper die base 1 and the lower die base 12, when the upper module 3 and the lower module 13 are closed, a buffer plate 15 is set between the upper module 3 and the lower module 13, which can provide a certain buffering performance for the mold. The upper module 3 squeezes the buffer plate 15, and with the cooperation of the upper circular groove 16 and the lower circular groove 19, a spring 20 is set between the buffer plate 15 and the lower module 13, which further improves the buffering effect when the upper die base 1 and the lower die base 12 are closed, and protects the mold from damage caused by sudden impact. The presence of the spring 20 can help the buffer plate 15 quickly return to its original position to prepare for the next injection molding cycle, thereby increasing the work efficiency and stability of the mold. By sliding the limit block 17 inside the limit groove 18, the movement range of the buffer plate 15 can be limited during the injection molding process to avoid failures due to exceeding the design range, thereby increasing the safety and reliability of the mold and ensuring the smooth progress of the injection molding process.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An injection mold with a quick demoulding function, comprising an upper mold base (1) and a lower mold base (12), characterized in that: A cylinder (4) is fixedly mounted on the surface of the upper die base (1); a bracket (2) is fixedly mounted on the bottom surface of the upper die base (1); an upper module (3) is fixedly mounted on the bottom surface of the bracket (2); an upper die head (9) is fixedly mounted inside the upper module (3); a movable plate (5) is slidably connected inside the bracket (2); a push rod (7) is fixedly mounted on the bottom surface of the movable plate (5); an air hole (11) is provided between the upper module (3) and the upper die head (9); a limit frame (21) is fixedly mounted on the surface of the lower die base (12); a lower module (13) is fixedly mounted inside the limit frame (21); and a lower die head (14) is fixedly mounted inside the lower module (13).

2. The injection mold with rapid demoulding function according to claim 1, characterized in that: A slide groove (10) is provided inside the upper module (3), the slide groove (10) is the same as the inside of the upper die head (9), and the ejector rod (7) slides inside the slide groove (10).

3. The injection mold with rapid demoulding function according to claim 1, characterized in that: A guide rod (6) is fixedly mounted on the bottom surface of the movable plate (5), a guide hole (8) is provided inside the upper module (3), and the guide rod (6) slides inside the guide hole (8).

4. The injection mold with rapid demoulding function according to claim 1, characterized in that: The upper module (3) is embedded in the interior of the limiting frame (21), and the upper die head (9) is embedded in the lower die head (14).

5. The injection mold with rapid demoulding function according to claim 1, characterized in that: The output end of the cylinder (4) is fixedly connected to the surface of the movable plate (5), and the ejector rod (7) is located at the center of the upper die head (9).

6. The injection mold with rapid demoulding function according to claim 1, characterized in that: The surface of the lower die head (14) is slidably connected with a buffer plate (15), the bottom surface of the buffer plate (15) is provided with an upper circular groove (16), the surface of the lower die block (13) is provided with a lower circular groove (19), and a spring (20) is fixedly installed between the upper circular groove (16) and the lower circular groove (19).

7. The injection mold with rapid demoulding function according to claim 6, characterized in that: A limiting block (17) is fixedly mounted on the side of the buffer plate (15), a limiting groove (18) is provided on the side of the limiting frame (21), and the limiting block (17) slides inside the limiting groove (18).

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