Splicing die for vehicle door frame

Abstract

The utility model relates to the field of design and processing of plastic molds, and discloses a splicing mold of a vehicle door frame, which comprises a panel, a positioning component and a mold closing component, the panel is a top connecting piece and is used for connecting a front mold and a bottom plate, the bottom plate is a bottom supporting piece and is used for supporting a rear mold, the positioning component is arranged in the panel and is used for guiding positioning, and the mold closing component is used for closing the front mold and the rear mold. The die assembly assembly is arranged at the bottom of the panel and used for machining a door frame, the positioning assembly comprises a positioning ring and a hot runner plate, and the positioning ring is arranged in the panel. According to the utility model, the plate B is made of the original material without opening the mold frame, the material grade only needs to meet the appearance requirement of the product, the interior of the plate B is segmented according to the shape of the product and is locally spliced in an embedded manner, the product is surrounded by the plate A, and the rear mold splicing design reduces the processing time and difficulty of opening the whole frame; therefore, the material of the mold core is saved by more than 2.5 times, and the overall cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold design and processing, and in particular to a splicing mold for a car door frame. Background Technology

[0002] In the design and manufacturing of automotive plastic molds, the price and delivery time of door frame molds play a crucial role. As a key component of the car body, the rational design and manufacturing of the door frame directly affects the door's sealing performance, sound insulation, and overall safety. With the rapid development of the automotive industry, the requirements for production efficiency and quality of door frames are constantly increasing, which necessitates continuous innovation and optimization of mold technology. An efficient, precise, and cost-effective door frame assembly mold is of great significance for enhancing the competitiveness of automotive manufacturers. It not only relates to product quality but also directly impacts the company's production costs and production cycle.

[0003] Existing car door frame molds typically employ a relatively traditional design approach. Structurally, the A and B plates are generally designed as large open-frame structures, and the mold core is often made of high-quality steel, machined into a square or rectangular shape. The underlying technology primarily involves inlaying, integrating the mold core and template as a single unit for installation and positioning. During manufacturing, the template is first extensively opened to accommodate the mold core and other components. Then, workshop workers assemble the mold core using fitting and other structural parts to complete the mold assembly. This traditional mold design and technological principle has been widely used in car door frame production for a considerable period.

[0004] However, this traditional mold design has significant problems. The use of a single, open frame and a square, integrally inserted mold core results in an extremely time-consuming processing process. Opening the A and B plates as a single unit requires a considerable amount of processing time and places extremely high demands on the precision and performance of the processing equipment, undoubtedly increasing the processing difficulty. Furthermore, to meet the strength requirements of the overall structure, the mold core typically uses a large volume of material, leading to significant material waste. For example, in actual production, for large-sized car door frame assembly molds, the single-frame design and large mold core result in the use of mold core material far exceeding actual needs. Compared to the optimized design, material waste is more than 2.5 times higher, which undoubtedly greatly increases production costs and seriously affects the company's production efficiency and the product's price competitiveness in the market. Therefore, a new car door frame assembly mold is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a door frame splicing mold, which aims to improve the problem that the injection molding cost in the prior art is high and cannot adapt to the current market.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A door frame assembly mold includes a panel, which is a top connector for connecting a front mold, a base plate, which is a bottom support for supporting a rear mold, a positioning component, which is disposed inside the panel for guiding positioning, and a mold closing component, which is disposed at the bottom of the panel for processing the door frame. The positioning component includes a positioning ring and a hot runner plate, wherein the positioning ring is disposed inside the panel and the hot runner plate is disposed at the bottom of the panel.

[0008] As a further description of the above technical solution:

[0009] The mold clamping assembly includes an A plate, which is the top main body and is disposed at the bottom of the hot runner plate. Square guide pillars are disposed inside the A plate.

[0010] As a further description of the above technical solution:

[0011] A square iron is fixedly connected to the top of the base plate, and a B plate is provided on the top of the square iron. The B plate is the main body of the bottom. The interior of the B plate is located on the outer wall of the square guide post. An arc-shaped positioning groove is opened inside the B plate. A splicing insert A is provided inside the B plate, and a splicing insert B is placed inside the B plate.

[0012] As a further description of the above technical solution:

[0013] The base plate is equipped with an oil cylinder, and a ejector plate is fixedly connected to the top of the base plate. The ejector plate is located at the bottom of the B plate.

[0014] As a further description of the above technical solution:

[0015] The B plate engages with the A plate, and the B plate is provided with wear-resistant components inside;

[0016] As a further description of the above technical solution:

[0017] The wear-resistant component includes a balance block, the outer wall of which is fixedly connected to the outer wall of plate B.

[0018] As a further description of the above technical solution:

[0019] The outer wall of plate B is fixedly connected with a boss positioning wear-resistant block, and wear-resistant blocks are provided inside plate B. Positioning bosses are provided at all four corners of plate A.

[0020] This utility model has the following beneficial effects:

[0021] In this utility model, the material of plate B is retained in its original form without opening a mold frame. The material grade only needs to meet the appearance requirements of the product. Plate A is segmented according to the shape of the product and spliced ​​in a partial inlay manner. Plate A must surround the product to reduce the processing time and difficulty of opening the overall frame, thereby saving more than 2.5 times the material of the mold core and reducing the overall cost. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a door frame splicing mold proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the B-plate structure of a door frame splicing mold proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of plate B of a door frame splicing mold proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the A-plate structure of a door frame splicing mold proposed in this utility model.

[0026] Legend:

[0027] 1. Panel; 2. Positioning ring; 3. Hot runner plate; 4. Plate A; 5. Plate B; 6. Square iron; 7. Ejector plate; 8. Base plate; 9. Balance block; 10. Boss positioning wear-resistant block; 11. Wear-resistant block; 12. Positioning boss; 13. Square guide post; 14. Splicing insert A; 15. Splicing insert B; 16. Hydraulic cylinder; 17. Arc-shaped positioning groove. Detailed Implementation

[0028] 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.

[0029] Reference Figure 1 - Figure 4This utility model provides an embodiment of a car door frame splicing mold, including a panel 1, which is a top connector for connecting the front mold. The panel 1 is made of S50C steel, providing a robust structure and good thermal stability, effectively withstanding pressure and temperature changes from the front mold. A base plate 8, also made of S50C material, is a bottom support for supporting the rear mold, providing a solid foundation for the entire splicing mold and preventing displacement or shaking during processing. A positioning component is located inside the panel 1 for guiding positioning. A mold closing component is located at the bottom of the panel 1 for processing the car door frame. The positioning component includes a positioning ring 2 and... The hot runner plate 3 and the positioning ring 2 are located inside the panel 1. The positioning ring 2 is usually made of S50C material, which has extremely high concentricity and plays a role in precise guidance and positioning, ensuring that the components can be accurately connected during the mold closing process. The hot runner plate 3 is located at the bottom of the panel 1. The hot runner plate 3 is made of beryllium copper alloy with excellent thermal conductivity. Its internal design has a complex flow channel system, which can evenly transport the high-temperature plastic melt to the mold cavity. The efficient heating device maintains the molten state of the plastic in the flow channel, ensuring the continuity and stability of the injection molding process. The mold closing assembly includes A plate 4, the top body of A plate 4, and A plate 4 is located at the bottom of the hot runner plate 3. The mold assembly includes square guide pillars 13. Plate A 4 is a key component of the mold closing assembly, made of high-strength, high-toughness mold steel. It undergoes multiple heat treatment processes, including local quenching and tempering, resulting in excellent wear resistance and fatigue resistance. During injection molding, it works in conjunction with Plate B 5 to form the mold. A square iron 6, also made of S50C steel, is fixedly connected to the top of the base plate 8. This 6 provides strength and rigidity, supporting Plate B 5 and ensuring its stability during operation. Plate B 5 is positioned on top of the square iron 6, forming the main bottom structure. The interior of Plate B 5 is located on the outer wall of the square guide pillars 13. An arc-shaped positioning groove 17 is located inside Plate B 5, along with a splicing insert A. 14. Inside plate B5, there is a splicing insert B15. Inside plate 8, there is a hydraulic cylinder 16. The top of plate 8 is fixedly connected to an ejector plate 7. The ejector plate 7 is located at the bottom of plate B5. Plate B5 and plate A4 are engaged. Inside plate B5, there is a wear-resistant component, including a balance block 9. The outer wall of the balance block 9 is fixedly connected to the outer wall of plate B5. The outer wall of plate B5 is fixedly connected to a boss positioning wear-resistant block 10. Inside plate B5, there is a wear-resistant block 11. Positioning bosses 12 are provided at the four corners of plate A4. During the mold operation, the positioning bosses 12 and the balance block 9 cooperate with each other to maintain the force balance of the mold and ensure the stable state of the door frame mold when it is closed.

[0030] Specifically, in the actual assembly process of the door frame splicing mold, the A plate 4 first needs to be precisely assembled according to the specific processing conditions. After the front mold assembly is completed, the A plate 4 is precisely fixed on the top position of the B plate 5 by the square guide post 13, completing all the fitting and mold closing actions. During the formal injection molding production on the machine, the injection molding machine injects the material into the mold through the hot runner through the hot nozzle, applying pressure to make the material fill and form evenly. After filling is completed, the mold is opened, and the ejector plate 7 is driven by the four hydraulic cylinders 16 mounted on the B plate to smoothly eject the injection-molded product. The operator then removes the product, completing the operation. It is worth mentioning that the device is highly innovative in design. The material of the B plate 5 is retained in its original form, abandoning the traditional mold opening frame design, and adopting a partial inlay splicing method. This measure greatly reduces the processing time and difficulty of opening the overall frame, while also significantly saving the material cost of the mold core, effectively reducing production costs.

[0031] Working principle: After the mold is assembled and closed, the internal cavity of the mold is filled by the injection molding machine. At the same time, the mold is kept in force balance by the balance block 9 and the positioning boss 12. After filling is completed, the ejector plate 7 is driven by the four oil cylinders 16 mounted on the B plate to eject the filled product. The material of the B plate 5 of this device is retained in its original form, without opening the mold frame, and is partially inlaid and spliced, which reduces the processing time and difficulty of opening the overall frame and saves the material cost of the mold core.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A split mold for a vehicle door frame, characterized by, Include: Panel (1), the panel (1) is a top connecting piece for connecting the front mold; Bottom plate (8), the bottom plate (8) is a bottom support for supporting the back mold; Positioning assembly, the positioning assembly is arranged inside the panel (1), for guiding positioning; The assembly is arranged at the bottom of the panel (1), for processing the door frame; The positioning assembly includes positioning ring (2) and hot runner plate (3), the positioning ring (2) is arranged inside the panel (1), the hot runner plate (3) is arranged at the bottom of the panel (1).

2. The split mold for a door frame according to claim 1, wherein: The assembly includes A plate (4), the A plate (4) is a top body, the A plate (4) is arranged at the bottom of the hot runner plate (3), the A plate (4) is provided with square guide column (13) inside.

3. A split mold for a door frame as defined in claim 2, wherein: The square iron (6) is fixedly connected at the top of the bottom plate (8), the B plate (5) is arranged at the top of the square iron (6), the B plate (5) is a bottom body, the B plate (5) is arranged on the outer wall of the square guide column (13) inside, the B plate (5) is provided with arc positioning groove (17) inside, the B plate (5) is provided with splicing insert A (14) inside, the B plate (5) is placed with splicing insert B (15) inside.

4. A split mold for a door frame according to claim 3, wherein: The bottom plate (8) is provided with oil cylinder (16) inside, the top pin plate (7) is fixedly connected at the top of the bottom plate (8), and the top pin plate (7) is arranged at the bottom of the B plate (5).

5. A split mold for a door frame according to claim 4, characterized in that: The B plate (5) is engaged with the A plate (4), and the B plate (5) is provided with wear-resistant assembly inside.

6. A split mold for a door frame as defined in claim 5, wherein: The wear-resistant assembly includes balance block (9), and the outer wall of the balance block (9) is fixedly connected to the outer wall of the B plate (5).

7. A split mold for a door frame according to claim 6, characterized in that: The B plate (5) is fixedly connected with boss positioning wear block (10) on the outer wall, the B plate (5) is provided with wear block (11) inside, and the A plate (4) is provided with positioning boss (12) at four corners.

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