Injection molding full copper surface mold structure

Abstract

This utility model discloses a structure for an injection-molded all-copper mold, including a moving mold assembly and a fixed mold assembly. An inclined guide post passes through the fixed mold frame and is fixedly connected to the fixed mold plate. The moving mold assembly includes a moving mold frame, a moving mold base plate, a moving mold cavity plate, and a slider. The moving mold cavity plate is fixedly connected to the moving mold base plate. A slider is provided on the moving mold frame, located on both sides of the moving mold cavity plate. The slider can slide along a slide rail on the moving mold frame. The inclined guide post passes through an inclined guide hole on the slider. The moving mold frame and the moving mold base plate are connected by a plug screw. One end of the plug screw is fixedly connected to the moving mold base plate, and the other end is slidably connected to the moving mold frame. A spring is fitted on the plug screw. During mold opening, the spring drives the mold frame and slider to float, causing the product to detach from the cavity and preventing surface scratches due to non-parallelism during ejection. The ejector pins of the mold are connected to the runner of the moving mold cavity plate. After mold opening, the ejector pins press against the runner rods to prevent ejection marks on the product.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold structure with an all-copper surface. Background Technology

[0002] Insert molding refers to a molding method in which pre-prepared inserts of different materials are placed into a mold, followed by resin injection. The molten material bonds with the insert and solidifies to create a one-piece product. Existing molds typically use robotic arms to grip the product and insert the insert. The robotic arm has two grippers facing opposite directions. One side grips the insert, and the other grips the product. Currently, the insert is mounted on the core of the moving mold, and the product, after demolding, is also located on the moving mold side. Therefore, the robotic arm needs to first grip the product with one side, then rotate 180 degrees so that the other side with the insert facing the moving mold, and then mount the insert onto the core of the moving mold. During demolding, the product adheres to the cavity wall, making demolding difficult. If the ejection is not parallel, the product surface is easily scratched. Existing mold ejector pins press against the insert, leaving ejection marks on the insert surface, affecting product quality. The insert surface needs to achieve a smooth, mirror-like finish. Utility Model Content

[0003] To address the aforementioned problems, this utility model aims to provide an injection molding all-copper mold structure to solve the issues of difficult demolding of tubular products with inserts and ejection marks on the products.

[0004] The technical problem solved by this utility model can be achieved by the following technical solution: A full copper injection mold structure, including a moving mold assembly and a fixed mold assembly. The fixed mold assembly includes a fixed template, a fixed mold frame, a fixed mold cavity plate, and inclined guide pillars. The fixed mold cavity plate is fixed inside the fixed mold frame. The inclined guide pillars pass through the fixed mold frame and are fixedly connected to the fixed template. The moving mold assembly includes a moving mold frame, a moving mold base plate, a moving mold cavity plate, and a slider. The moving mold cavity plate is fixedly connected to the moving mold base plate. The moving mold frame is provided with sliders located on both sides of the moving mold cavity plate. The sliders can slide along the slide rails on the moving mold frame. The sliders are provided with inclined guide holes. The inclined guide pillars pass through the inclined guide holes, and the sliders are slidably connected to the inclined guide pillars.

[0005] The moving mold frame and the moving mold base plate are connected by a plug screw. One end of the plug screw is fixedly connected to the moving mold base plate, and the other end is slidably connected to the moving mold frame. The head of the plug screw is matched with the stepped surface in the screw hole of the moving mold frame for limiting. A spring is sleeved on the plug screw. One end of the spring is connected to the moving mold base plate, and the other end is connected to the moving mold frame.

[0006] The moving mold frame is provided with a spring cavity, the plug screw passes through the center of the spring cavity, the spring is disposed in the spring cavity, and one end of the spring is connected to the inner end of the spring cavity.

[0007] The slider is provided with a core base, the core base is provided with a second core, and the fixed mold cavity plate is provided with a first core. The first core and the second core are perpendicular to each other, and one end of the first core and one end of the second core are in contact when the mold is closed.

[0008] The moving mold assembly also includes ejector pins, which are fixed on ejector pin plates. The ejector pins pass through the moving mold base plate, the moving mold frame, and the moving mold cavity plate in sequence and are connected to the flow channel of the moving mold cavity plate.

[0009] The ejector plate is provided with a guide hole, and a guide post passes through the guide hole. One end of the guide post is fixedly connected to the moving template, and the other end is fixedly connected to the moving mold base plate. The ejector plate can slide along the guide post.

[0010] The fixed mold frame is fixedly connected to the fixed template, the moving mold base plate is fixedly connected to the mold foot, the mold foot is fixedly connected to the moving template, and the moving template is provided with an ejection hole.

[0011] Compared with the prior art, the present invention has the following advantages: 1. The insert is installed on the core of the fixed mold, breaking the conventional mold structure. When the robot installs the copper insert, it does not rotate 180 degrees, saving production time. 2. When the mold opens, the spring drives the mold frame and slider to float, which drives the product to leave the cavity, preventing the product from sticking to the cavity wall and preventing the product surface from being scratched due to non-parallelism during ejection; 3. After the mold is opened, the ejector pins press against the runner rod to prevent ejection marks on the product and ensure product quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention in the mold-closed state; Figure 2 This is a schematic diagram of the structure of this utility model, showing the separation of the fixed mold and the moving mold; Figure 3 This is a schematic diagram of the ejector pin. Figure 4 This is a schematic diagram of the moving mold assembly. Figure 5 This is a schematic diagram of the fixed mold assembly. In the diagram: 1-Fixed template, 2-Fixed mold frame, 3-Slider, 4-Angled guide post, 5-Moving mold frame, 6-Plug screw, 7-Spring, 8-Moving mold base plate, 9-Ejector pin, 10-Ejector plate, 11-Guide post, 12-Mold foot, 13-Moving template, 14-Fixed mold cavity plate, 15-First core, 16-Moving mold cavity plate, 17-Core base, 18-Second core, 19-Product, 20-Runner rod, 21-Runner. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0014] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] Combined with appendix Figures 1 to 5 As shown, this embodiment discloses an injection molding all-copper surface mold structure, including a moving mold assembly and a fixed mold assembly. The fixed mold assembly includes a fixed template 1, a fixed mold frame 2, a fixed mold cavity plate 14, and an inclined guide post 4. The fixed mold frame 2 is fixedly connected to the fixed template 1, the fixed mold cavity plate 14 is fixed inside the fixed mold frame 2, and the inclined guide post 4 passes through the fixed mold frame 2 and is fixedly connected to the fixed template 1. The moving mold assembly includes a moving template 13, a moving mold frame 5, a moving mold cavity plate 16, a slider 3, a moving mold base plate 8, mold feet 12, and an ejection structure. The moving mold base plate 8 is fixedly connected to the mold feet 12, and the mold feet 12 are fixedly connected to the moving template 13. The moving mold cavity plate 16 is fixedly connected to the moving mold base plate 8. The moving mold frame 5 is located around the moving mold cavity plate 16. The moving mold frame 5 is provided with sliders 3, which are located on both sides of the moving mold cavity plate 16. When the mold is opened, the sliders 3 can slide along the slide rails on the moving mold frame 5. The sliders 3 are provided with inclined guide holes, and the inclined guide posts 4 pass through the inclined guide holes. The sliders 3 and the inclined guide posts 4 are slidably connected.

[0016] A core base 17 is provided on the slider 3, and a second core 18 is provided on the core base 17. A first core 15 is provided on the fixed mold cavity plate 14. The first core 15 and the second core 18 are perpendicular to each other. When the mold is closed, one end of the first core 15 and one end of the second core 18 are in contact. When the mold is closed, the fixed mold cavity plate 14, the moving mold cavity plate 16, and the two core bases 17 constitute the product cavity.

[0017] The moving mold frame 5 and the moving mold base plate 8 are connected by a stop screw 6. One end of the stop screw 6 is fixedly connected to the moving mold base plate 8, and the other end is slidably connected to the moving mold frame 5. The head of the stop screw 6 engages with the stepped surface inside the screw hole of the moving mold frame 5 to limit its movement and prevent the moving mold frame 5 from disengaging from the stop screw 6 under the action of the spring during mold opening. A spring 7 is fitted onto the stop screw 6, with one end connected to the moving mold base plate 8 and the other end connected to the moving mold frame 5. The moving mold frame 5 has a spring cavity, through which the stop screw 6 passes. The spring 7 is located inside the spring cavity, with one end connected to the inner end of the spring cavity. Springs 7 are installed at all four corners between the moving mold frame 5 and the moving mold base plate 8.

[0018] When the mold is closed, the moving mold frame 5 is in close contact with the moving mold base plate 8, and the spring 7 is in a compressed state. When the mold is opened, the inclined guide post 4 drives the slider 3 to move to both sides. At the same time, under the action of the spring 7, the moving mold frame 5 separates from the moving mold base plate 8, and the moving mold frame 5 moves relative to the moving mold cavity plate 16, causing the product on the moving mold cavity plate 16 to detach from the cavity wall.

[0019] The ejection structure includes ejector pins 9, ejector plate 10, and guide posts 11. Ejector pins 9 are fixed to the ejector plate 10 and pass sequentially through the moving mold base plate 8, moving mold frame 5, and moving mold cavity plate 16, connecting to the flow channel of the moving mold cavity plate 16. The ejector plate 10 has multiple guide holes, each containing a guide post 11. One end of the guide post 11 is fixedly connected to the moving mold plate 13, and the other end is fixedly connected to the moving mold base plate 8. The ejector plate 10 can slide along the guide posts 11. The moving mold plate 13 has ejection holes. After mold opening, the injection molding machine uses the ejector plate 10 through the ejection holes to push the ejector pins against the flow channel rods of the product, causing the product to eject. During ejection, the ejector plate 10 slides along the guide posts 11. Ejector pins 9 press against the flow channel rods 20 of the product, preventing ejection marks and improving product quality.

[0020] The production process is as follows: the copper insert is installed on the first core 15 of the fixed mold, then the mold is closed and the raw material is injected, pressure is maintained and the product is cooled and formed. The fixed mold and the moving mold are separated, the inclined guide post 4 drives the slider 3 to move to both sides, and at the same time the spring 7 makes a pop-out movement. The moving mold frame 5 moves under the action of the spring 7, so that the product is separated from the mold cavity wall. After the mold is opened, the injection molding machine makes an ejection movement, and the ejector pin 9 ejects the runner rod 20, completing the demolding of the product.

[0021] The insert of this invention is installed on the core of the fixed mold, and the demolded product is located on the moving mold side. The insert and the product are not on the same side. When the robot installs the copper insert, it does not perform a 180-degree flip, saving production time.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the utility model in any way. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A structure for injection molding all-copper surface molds, comprising a moving mold assembly and a fixed mold assembly, characterized in that: The fixed mold assembly includes a fixed template (1), a fixed mold frame (2), a fixed mold cavity plate (14), and an inclined guide post (4). The fixed mold cavity plate (14) is fixed inside the fixed mold frame (2). The inclined guide post (4) passes through the fixed mold frame (2) and is fixedly connected to the fixed template (1). The moving mold assembly includes a moving mold frame (5), a moving mold base plate (8), a moving mold cavity plate (16), and a slider (3). The moving mold cavity plate (16) is fixedly connected to the moving mold base plate (8). The moving mold frame (5) is provided with a slider (3). The slider (3) is located on both sides of the moving mold cavity plate (16). The slider (3) can slide along the slide rail on the moving mold frame (5). The slider (3) is provided with an inclined guide hole. The inclined guide post (4) passes through the inclined guide hole. The slider (3) is slidably connected to the inclined guide post (4).

2. The injection molding all-copper surface mold structure according to claim 1, characterized in that: The moving mold frame (5) and the moving mold base plate (8) are connected by a plug screw (6). One end of the plug screw (6) is fixedly connected to the moving mold base plate (8), and the other end is slidably connected to the moving mold frame (5). The head of the plug screw (6) is matched with the stepped surface in the screw hole of the moving mold frame (5) for limiting. A spring (7) is sleeved on the plug screw (6). One end of the spring (7) is connected to the moving mold base plate (8), and the other end is connected to the moving mold frame (5).

3. The injection molding all-copper surface mold structure according to claim 2, characterized in that: The moving mold frame (5) is provided with a spring cavity, the plug screw (6) passes through the center of the spring cavity, the spring (7) is provided in the spring cavity, and one end of the spring (7) is connected to the inner end of the spring cavity.

4. The injection molding all-copper surface mold structure according to claim 1, characterized in that: The slider (3) is provided with a core base (17), the core base (17) is provided with a second core (18), the fixed mold cavity plate (14) is provided with a first core (15), the first core (15) and the second core (18) are perpendicular to each other, and when the mold is closed, one end of the first core (15) and one end of the second core (18) are in contact.

5. The injection molding all-copper surface mold structure according to claim 1, characterized in that: The moving mold assembly also includes an ejector pin (9), which is fixed on the ejector plate (10). The ejector pin (9) passes through the moving mold base plate (8), the moving mold frame (5), and the moving mold cavity plate (16) in sequence and is connected to the flow channel of the moving mold cavity plate (16).

6. The injection molding all-copper surface mold structure according to claim 5, characterized in that: The ejector plate (10) is provided with a guide hole, and a guide post (11) passes through the guide hole. One end of the guide post (11) is fixedly connected to the moving template (13), and the other end is fixedly connected to the moving mold base plate (8). The ejector plate (10) can slide along the guide post (11).

7. The injection molding all-copper surface mold structure according to claim 1, characterized in that: The fixed mold frame (2) is fixedly connected to the fixed template (1), the moving mold base plate (8) is fixedly connected to the mold foot (12), the mold foot (12) is fixedly connected to the moving template (13), and the moving template (13) is provided with an ejection hole.

Images