Injection mold for producing automobile plastic parts

Abstract

The utility model is applicable to the technical field of injection molds, and provides an injection mold for producing automobile plastic accessories, which comprises a mold box and a mold cover detachably mounted on the mold box and used for sealing the mold box to prevent plastic liquid from leaking, the cooling cylinder is arranged outside the mold box in a sleeving manner, is used for providing a cooling water flowing space and is used for assisting in cooling the automobile plastic parts; the extension plate is mounted on the mold box, is used for sealing the cooling cylinder and is used for preventing leakage of cooling water; the protective shell is movably arranged outside the extension plate in a sleeving manner and is used for isolating a cooling environment; and the push rod is arranged in the protective shell, can extend into the mold box and is used for assisting in discharging. According to the injection mold for automobile plastic accessory production, through auxiliary cooling, the injection molding efficiency and the product quality are improved, and the operation difficulty and the maintenance cost are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and in particular relates to an injection mold for the production of automotive plastic parts. Background Technology

[0002] Injection molds are widely used in the plastic product processing industry. Injection molds are generally suitable for heating and molding thermoplastic plastics. Utilizing the principle of thermoplastic plastic melting, molten plastic is injected into the mold cavity through an injection molding machine, then cooled and solidified, and the mold is opened to remove the plastic product.

[0003] Existing injection molds have relatively simple structures. During the injection process, the high temperature and slow cooling rate result in low processing efficiency. Utility Model Content

[0004] This utility model provides an injection mold for the production of automotive plastic parts, aiming to solve the problem mentioned in the background art that the existing injection mold has a relatively simple structure and low processing efficiency due to high temperature and slow cooling rate during the injection process.

[0005] To solve the above problems, this utility model is implemented as follows: an injection mold for producing automotive plastic parts, comprising: a mold box and a mold cover detachably mounted on the mold box for sealing the mold box to prevent leakage of molten plastic; a cooling cylinder sleeved outside the mold box for providing space for cooling water flow to assist in cooling the automotive plastic parts; an extension plate mounted on the mold box for sealing the cooling cylinder to prevent leakage of cooling water; a protective shell movably sleeved outside the extension plate for isolating the cooling environment; and a push rod disposed inside the protective shell and extendable into the mold box for assisting in material discharge.

[0006] Preferably, a spring for assisting the mold box to quickly reset is fixed on the inner wall of the protective shell, the spring is connected to the extension plate, and an adjustment block extending to the outside of the protective shell for providing an operating grip point is installed on the extension plate.

[0007] Preferably, the protective shell is provided with a groove for limiting the movement path of the adjusting block, the adjusting block is fixed with a moving block, and the moving block is embedded with a ball bearing that can contact the outer wall of the protective shell to reduce friction.

[0008] Preferably, the protective shell has an opening that allows the mold box to pass through, and the side of the extension plate away from the spring is fixed with a cushioning pad that can contact the inner wall of the protective shell for noise reduction.

[0009] Preferably, the cooling cylinder is equipped with an inlet pipe for inputting cooling water and a drain pipe for outputting cooling water. Both the inlet pipe and the drain pipe extend outside the protective shell, and both the inlet pipe and the drain pipe are provided with elastic rubber rings to assist in pipe expansion and contraction.

[0010] Preferably, both the inlet pipe and the outlet pipe are rotatably mounted with threaded connectors, the inner wall of the threaded connector is fixed with a sealing ring for preventing leakage of cooling water, and the outer wall of the threaded connector is provided with anti-slip textures for increasing friction.

[0011] Preferably, the spring is provided with a limiting telescopic rod for limiting the extension path of the spring, and the limiting telescopic rod is fixed on the inner wall of the protective shell and connected to the extension plate.

[0012] Preferably, the mold box and the mold cover are provided with openings on opposite sides, the push rod extends into the mold box through the opening on the mold box, and the opening on the mold cover is used to provide an injection channel.

[0013] Compared with related technologies, the injection mold for producing automotive plastic parts provided by this utility model has the following beneficial effects:

[0014] Compared with existing technologies, the injection mold for automotive plastic parts production provided by this solution achieves an efficient, stable, and safe injection molding process by setting up a cooling cylinder, extension plate, protective shell, spring return mechanism, slide and adjustment block, buffer pad, liquid inlet pipe and liquid outlet pipe and their accessories. It not only improves injection molding efficiency and product quality through auxiliary cooling, but also reduces operation difficulty and maintenance costs. At the same time, the buffer pad reduces noise and vibration, providing operators with a more comfortable working environment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of an injection mold for producing automotive plastic parts provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the front sectional view of an injection mold for producing automotive plastic parts provided by this utility model;

[0017] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0018] Figure 4 This is a side view of the threaded connector in this utility model.

[0019] Reference numerals in the attached drawings: 1. Mold box; 2. Mold cover; 3. Cooling cylinder; 4. Extension plate; 5. Protective shell; 6. Spring; 7. Limiting telescopic rod; 8. Liquid inlet pipe; 9. Liquid outlet pipe; 10. Push rod; 11. Slide groove; 12. Adjusting block; 13. Buffer pad; 14. Opening; 15. Moving block; 16. Threaded connector; 17. Sealing ring. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] This utility model provides an injection mold for the production of automotive plastic parts, such as... Figure 1-4 As shown, the injection mold for producing automotive plastic parts includes: a mold box 1 and a mold cover 2 detachably mounted on the mold box 1 to close the mold box 1 and prevent leakage of molten plastic; a cooling cylinder 3 sleeved outside the mold box 1 to provide space for the flow of cooling water to assist in cooling the automotive plastic parts; an extension plate 4 mounted on the mold box 1 to close the cooling cylinder 3 and prevent leakage of cooling water; a protective shell 5 movably sleeved outside the extension plate 4 to isolate the cooling environment; and a push rod 10 disposed inside the protective shell 5 and extendable into the mold box 1 to assist in material discharge.

[0023] In this embodiment, the mold box 1, as the main body of the injection mold, is used to contain molten plastic and cool it to form a solid shape. It provides a closed space to ensure that the plastic can cool and solidify according to the preset shape during the injection process. The mold cover 2 is used to seal the mold box 1 to prevent the molten plastic from leaking during the injection process, thereby improving the stability and safety of the injection process and ensuring product quality and production efficiency. The cooling cylinder 3 provides space for the flow of cooling water to assist in the cooling of automotive plastic parts. By introducing cooling water, the cooling speed of the mold is significantly accelerated, improving processing efficiency. It also helps to maintain the temperature stability of the mold box 1 and reduce the impact of temperature fluctuations on product quality. The extension plate 4 ensures that the cooling water in the cooling cylinder 3 does not leak out, ensuring the cooling effect while also improving the safety of the equipment. The protective shell 5 is used to isolate the cooling environment and protect the mold and surrounding equipment from the influence of the cooling water. The push rod 10 is used to assist in material discharge, that is, to help push the cooled and solidified plastic product out of the mold box 1, simplifying the product removal process, improving production efficiency, and reducing product damage and personnel injury that may be caused by manual material removal.

[0024] In a further preferred embodiment of the present invention, a spring 6 for assisting the mold box 1 to quickly reset is fixed on the inner wall of the protective shell 5. The spring 6 is connected to the extension plate 4, and an adjustment block 12 extending to the outside of the protective shell 5 for providing an operating grip point is installed on the extension plate 4.

[0025] In this embodiment, the introduction of spring 6 provides a reset mechanism. After the mold box 1 completes injection molding and cools down, when the external pressure decreases or disappears, spring 6 can assist the mold box 1 and its related components (such as extension plate 4) to quickly reset to the initial state, preparing for the next injection molding process. This not only improves production efficiency but also ensures the stability and durability of the mold. Adjustment block 12 makes it easier for operators to control and operate extension plate 4, especially when it is necessary to manually adjust or reset extension plate 4. It provides an intuitive and easy-to-operate interface, improving the convenience and efficiency of operation.

[0026] In a further preferred embodiment of the present invention, the protective shell 5 is provided with a groove 11 for limiting the moving path of the adjusting block 12, and a moving block 15 is fixed on the adjusting block 12. The moving block 15 is inlaid with a ball bearing that can contact the outer wall of the protective shell 5 to reduce friction.

[0027] In this embodiment, the slide 11 ensures the stability and accuracy of the adjusting block 12 during movement, preventing the adjusting block 12 from deviating from the predetermined path during movement, thereby ensuring that the mold box 1 and its related components (such as the extension plate 4) can be correctly and smoothly reset. The slide 11 also provides an intuitive visual indication to help the operator judge the position and status of the adjusting block 12. The moving block 15 enhances the contact area and stability between the adjusting block 12 and the slide 11, making the movement of the adjusting block 12 in the slide 11 more stable and reliable. The introduction of the ball significantly reduces the friction between the moving block 15 and the outer wall of the protective shell 5, making the movement of the adjusting block 12 and the moving block 15 in the slide 11 smoother and easier, reducing resistance and energy consumption during operation.

[0028] In a further preferred embodiment of the present invention, the protective shell 5 is provided with an opening 14 that allows the mold box 1 to pass through, and the side of the extension plate 4 away from the spring 6 is fixed with a buffer pad 13 that can contact the inner wall of the protective shell 5 for noise reduction.

[0029] In this embodiment, the opening 14 facilitates the installation, disassembly, and maintenance of the mold box 1 and its related components. It allows operators to easily replace or adjust the mold box 1 without disassembling the entire protective shell 5. The introduction of the buffer pad 13 significantly reduces the noise and vibration generated by the mold during operation. It reduces the direct collision between the extension plate 4 and the inner wall of the protective shell 5, thereby reducing the noise level and protecting the structural integrity of the mold.

[0030] In a further preferred embodiment of the present invention, the cooling cylinder 3 is equipped with an inlet pipe 8 for inputting cooling water and a drain pipe 9 for outputting cooling water. Both the inlet pipe 8 and the drain pipe 9 extend outside the protective shell 5, and both the inlet pipe 8 and the drain pipe 9 are provided with elastic rubber rings for assisting pipe expansion and contraction.

[0031] In this embodiment, the inlet pipe 8 is used to input cooling water into the cooling cylinder 3, while the outlet pipe 9 is used to discharge the used cooling water that may have absorbed heat from the cooling cylinder 3. Both pipes extend outside the protective shell 5, making it easy to connect to external water sources and drainage systems, so that the cooling water in the cooling cylinder 3 can be continuously recycled, thereby improving the cooling efficiency. At the same time, this design also facilitates the replacement and cleaning of the cooling water to maintain the cooling effect and the hygiene of the mold. Elastic rubber rings are installed on the inlet pipe 8 and the outlet pipe 9 to assist the expansion and contraction of the pipes and prevent the pipes from being damaged due to excessive stretching or compression.

[0032] In a further preferred embodiment of the present invention, threaded connectors 16 are rotatably installed on both the inlet pipe 8 and the outlet pipe 9. A sealing ring 17 for preventing leakage of cooling water is fixed on the inner wall of the threaded connector 16, and anti-slip textures for increasing friction are provided on the outer wall of the threaded connector 16.

[0033] In this embodiment, the threaded connector 16 provides a reliable connection method for connecting the pipe to an external water source and drainage system. The design of the threaded connector 16 makes the pipe connection more secure and stable, and it is not easy to loosen or fall off due to external force or vibration. This connection method is also easy to disassemble and replace, which facilitates the maintenance and upkeep of the mold. The sealing ring 17 is fixed on the inner wall of the threaded connector 16. They play a key role in preventing leakage of cooling water. When the threaded connector 16 is tightened, the sealing ring 17 is compressed and tightly fits the connection of the pipe, thereby forming an effective sealing barrier. The anti-slip texture design makes the operation of the threaded connector 16 simpler and more reliable.

[0034] In a further preferred embodiment of the present invention, the spring 6 is provided with a limiting telescopic rod 7 for limiting the extension path of the spring 6. The limiting telescopic rod 7 is fixed on the inner wall of the protective shell 5 and connected to the extension plate 4.

[0035] In this embodiment, the main function of the limiting telescopic rod 7 is to limit the extension path of the spring 6, ensuring that the spring 6 can move along a predetermined direction during the extension process without deviation or twisting. This helps to maintain the stability and accuracy of the mold box 1 and its related components (such as the extension plate 4) during the movement or reset process. The limiting telescopic rod 7 reduces the risk of the spring 6 being damaged due to overstretching or compression, which extends the service life of the spring 6 and reduces the maintenance cost of the mold.

[0036] In a further preferred embodiment of the present invention, the mold box 1 and the mold cover 2 are provided with openings on opposite sides. The push rod 10 extends into the mold box 1 through the opening on the mold box 1, and the opening on the mold cover 2 is used to provide an injection channel.

[0037] In this embodiment, the opening on the mold box 1 allows the push rod 10 to extend from the outside of the mold box 1 to its inside so as to push the molded part out of the mold after injection molding. This design makes the operation of the push rod 10 easier and avoids installing a complex drive mechanism inside the mold. The opening on the mold cover 2 serves as an injection channel, allowing the injection molding machine to inject molten plastic into the mold cavity.

[0038] In summary, compared with related technologies, this device, through the inclusion of a cooling cylinder 3, an extension plate 4, a protective shell 5, a spring 6 reset mechanism, a slide 11 and an adjusting block 12, a buffer pad 13, an inlet pipe 8 and an outlet pipe 9, and their accessories, achieves a highly efficient, stable, and safe injection molding production process. It not only improves injection molding efficiency and product quality through auxiliary cooling, but also reduces operating difficulty and maintenance costs. Furthermore, the buffer pad 13 reduces noise and vibration, providing operators with a more comfortable working environment.

[0039] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An injection mold for producing automotive plastic parts, characterized in that, include: Mold box (1) and mold cover (2) detachably mounted on the mold box (1) for closing the mold box (1) to prevent leakage of plastic liquid; A cooling cylinder (3) is fitted outside the mold box (1) to provide space for the flow of cooling water to assist in the cooling of automotive plastic parts; An extension plate (4) installed on the mold box (1) to seal the cooling cylinder (3) and to prevent leakage of cooling water; A protective shell (5) is installed outside the extension plate (4) to isolate and cool the environment; Push rods (10) are installed inside the protective shell (5) and extend into the mold box (1) for assisting in material discharge.

2. The injection mold for producing automotive plastic parts as described in claim 1, characterized in that, A spring (6) is fixed on the inner wall of the protective shell (5) to assist the mold box (1) in quick reset. The spring (6) is connected to the extension plate (4). An adjustment block (12) is installed on the extension plate (4) to extend to the outside of the protective shell (5) to provide an operating grip point.

3. The injection mold for producing automotive plastic parts as described in claim 2, characterized in that, The protective shell (5) is provided with a groove (11) for limiting the movement path of the adjusting block (12). A moving block (15) is fixed on the adjusting block (12). A ball bearing that can contact the outer wall of the protective shell (5) is embedded in the moving block (15) to reduce friction.

4. The injection mold for producing automotive plastic parts as described in claim 2, characterized in that, The protective shell (5) is provided with an opening (14) that allows the mold box (1) to pass through, and the extension plate (4) is fixed with a buffer pad (13) that can contact the inner wall of the protective shell (5) for noise reduction on the side away from the spring (6).

5. The injection mold for producing automotive plastic parts as described in claim 1, characterized in that, The cooling cylinder (3) is equipped with an inlet pipe (8) for inputting cooling water and a drain pipe (9) for outputting cooling water. Both the inlet pipe (8) and the drain pipe (9) extend outside the protective shell (5). Both the inlet pipe (8) and the drain pipe (9) are provided with elastic rubber rings to assist in the expansion and contraction of the pipes.

6. The injection mold for producing automotive plastic parts as described in claim 5, characterized in that, Both the inlet pipe (8) and the outlet pipe (9) are rotatably mounted with threaded connectors (16). The inner wall of the threaded connector (16) is fixed with a sealing ring (17) to prevent leakage of cooling water. The outer wall of the threaded connector (16) is provided with anti-slip texture to increase friction.

7. The injection mold for producing automotive plastic parts as described in claim 2, characterized in that, The spring (6) is provided with a limiting telescopic rod (7) for limiting the extension path of the spring (6). The limiting telescopic rod (7) is fixed on the inner wall of the protective shell (5) and connected to the extension plate (4).

8. The injection mold for producing automotive plastic parts as described in claim 1, characterized in that, Both the mold box (1) and the mold cover (2) have openings on opposite sides. The push rod (10) extends into the mold box (1) through the opening on the mold box (1). The opening on the mold cover (2) is used to provide an injection channel.

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