Mold for automotive interior part

Abstract

The application provides a car interior part mold, which comprises a front mold assembly and a rear mold assembly, the rear mold assembly comprises a rear mold plate, the rear mold plate is provided with a first slider assembly, a second slider assembly and a third slider assembly, the middle of the rear mold plate is a forming part, the forming part is inlaid with an inlay block, the third slider assembly is provided with a core pulling assembly at a corresponding position, the inlay block is provided with a containing space, the forming part of the core pulling assembly is embedded into the containing space, the core pulling assembly comprises a first driving piece, an inner core pulling assembly and an outer core pulling assembly, the first driving piece has two action stages, when the first driving piece is in the first action stage, the first driving piece drives the inner core pulling assembly to separate from a product, when the first driving piece is in the second action stage, the first driving piece drives the outer core pulling assembly to separate from the product. The application has the advantages of good forming quality, high product qualification rate and the like.

Description

Technical Field

[0001] This invention relates to the field of molds, and in particular to molds for automotive interior parts. Background Technology

[0002] Automotive interior components are an important part of a car, and the appearance requirements for these components are very strict in order to ensure the aesthetics of the car's interior.

[0003] The back of the automotive interior parts has two hollow protrusions in the middle. With existing molds, demolding these protrusions after injection molding is very difficult. The current molds use a single core-pulling method, but due to the strong adhesion between the mold and the part during demolding, the protrusions are prone to deformation, affecting the product's appearance and increasing the likelihood of product scrap. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] This invention provides an automotive interior trim mold, including a front mold assembly and a rear mold assembly. The rear mold assembly includes a rear template, on which a first slider assembly, a second slider assembly, and a third slider assembly are disposed. A forming portion is located in the center of the rear template, and an insert is embedded in the forming portion. A core-pulling assembly is disposed at a position corresponding to the third slider assembly. The insert has an accommodating space, and the forming portion of the core-pulling assembly is embedded in the accommodating space. The core-pulling assembly includes a first driving member, an inner core-pulling assembly, and an outer core-pulling assembly. The first driving member has two operating stages. When the first driving member is in the first operating stage, it drives the inner core-pulling assembly to detach from the product. When the first driving member is in the second operating stage, it drives the outer core-pulling assembly to detach from the product.

[0006] According to some embodiments of the present invention, the inner core-pulling assembly includes a connecting block, an inner core-pulling drive block, and an inner core-pulling component. The connecting block is fixedly connected to the output end of the first drive component. One end of the inner core-pulling drive block is fixedly connected to the connecting block, and the other end is slidably connected to the inner core-pulling component. When the first drive component drives the connecting block to move away from the product, the inner core-pulling drive block drives the inner core-pulling component to detach from the product.

[0007] According to some embodiments of the present invention, the inner core-pulling drive block is provided with a first sliding groove, and the inner core-pulling component is provided with a first sliding protrusion that matches the first sliding groove.

[0008] According to some embodiments of the present invention, the inner core-pulling component is provided with two molded parts.

[0009] According to some embodiments of the present invention, the external core-pulling assembly includes an external core-pulling drive block and an external core-pulling component. A bolt connecting the external core-pulling drive block and the connecting block is provided. The connecting block is provided with a bolt connection hole. One end of the bolt is located in the bolt connection hole and can move within the bolt connection hole. An elastic element that can abut against the external core-pulling drive block is sleeved on the bolt. The external core-pulling drive block and the external core-pulling component are slidably connected.

[0010] According to some embodiments of the present invention, the outer core-pulling drive block is provided with a second sliding protrusion, and the outer core-pulling component is provided with a second sliding groove that matches the second sliding protrusion.

[0011] According to some embodiments of the present invention, the outer core-pulling component is provided with an elastic retaining bead, and the inner core-pulling component is provided with a retaining groove that cooperates with the elastic retaining bead.

[0012] According to some embodiments of the present invention, the first slider assembly includes a second driving member, a first slider connecting block and a first slider base, the output end of the second driving member is fixedly connected to the first slider connecting block, the side of the first slider base is provided with a first connecting groove, and the first slider connecting block is located in the first connecting groove.

[0013] According to some embodiments of the present invention, the second slider assembly includes a third driving member, a second slider connecting block, and a second slider base. The output end of the third driving member is fixedly connected to the second slider connecting block. A second connecting groove is provided on the side of the second slider base, and the second slider connecting block is located in the second connecting groove.

[0014] According to some embodiments of the present invention, the third slider assembly is provided with a protrusion, the insert is provided with a notch, and after the mold is closed, the protrusion is inserted into the notch.

[0015] This invention has at least the following technical effects:

[0016] 1. The automotive interior parts mold of this invention, by setting an inner core-pulling component and an outer core-pulling component that can be detached from the product sequentially, can prevent the product from deforming when the core-pulling component is detached from the product, thereby ensuring product quality and improving the pass rate.

[0017] 2. In the automotive interior part mold of this invention, the outer core-pulling part is provided with an elastic retaining bead, and the inner core-pulling part is provided with a retaining groove that cooperates with the elastic retaining bead, so as to facilitate mold closing. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of one embodiment of the present invention;

[0019] Figure 2This is a schematic diagram of a specific embodiment of the present invention after removing some parts;

[0020] Figure 3 This is a schematic diagram of an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of a third slider assembly according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of a core-pulling assembly according to an embodiment of the present invention;

[0023] Figure 6 This is an exploded view of a core-pulling assembly according to an embodiment of the present invention;

[0024] Figure 7 This is one embodiment of the present invention. Figure 5 Schematic diagram of the AA section;

[0025] Figure 8 This is a schematic diagram of a first slider assembly according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of a second slider assembly according to an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of an automotive interior component according to an embodiment of the present invention.

[0028] Reference numerals: Front mold assembly 100, rear mold assembly 200, rear template 210, molding part 211, first slider assembly 300, second drive component 310, first slider connecting block 320, first slider base 330, first connecting groove 331, second slider assembly 400, third drive component 410, second slider connecting block 420, second slider base 430, second connecting groove 431, third slider assembly 500, protrusion 510, insert 600, accommodating space 610, notch 620, core pulling Component 700, first driving member 710, inner core-pulling component 720, connecting block 721, bolt connecting hole 7211, inner core-pulling driving block 722, first sliding groove 7221, inner core-pulling member 723, first sliding protrusion 7231, slot 7232, outer core-pulling component 730, outer core-pulling driving block 731, second sliding protrusion 7311, through groove 7312, outer core-pulling member 732, second sliding groove 7321, receiving cavity 7322, bolt 733, elastic member 740, elastic retaining ball 800. Detailed Implementation

[0029] The present invention provides the following description with reference to the accompanying drawings to aid in a full understanding of the various embodiments of the present disclosure as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the present disclosure. Furthermore, for clarity and brevity, descriptions of well-known functions and constructions may be omitted.

[0030] The terms and words used in the following description and claims are not limited to their literal meaning, but are merely used by the inventors to enable a clear and consistent understanding of this disclosure. Therefore, it will be clear to those skilled in the art that the following description of various embodiments of this disclosure is provided for illustrative purposes only, and not to limit the disclosure as defined by the appended claims and their equivalents.

[0031] It should be understood that the singular form “one” includes plural references unless the context explicitly specifies otherwise. Thus, for example, a reference to “a component surface” includes a reference to one or more such surfaces.

[0032] The terms “having,” “may have,” “including,” or “may include” used in the various embodiments of this disclosure indicate the presence of the corresponding functions, operations, elements, etc., but do not limit the presence of one or more additional functions, operations, elements, etc.

[0033] Furthermore, it should be understood that the terms “comprising” or “having” used in the various embodiments of this disclosure are intended to indicate the presence of features, numbers, operations, elements, components or combinations thereof described in the specification, but do not exclude the presence or addition of one or more other features, numbers, operations, elements, components or combinations thereof.

[0034] like Figures 1-10 As shown, the present invention provides an automotive interior trim mold, including a front mold assembly 100 and a rear mold assembly 200. The rear mold assembly 200 includes a rear template 210, on which a first slider assembly 300, a second slider assembly 400, and a third slider assembly 500 are provided. A forming part 211 is located in the middle of the rear template, and an insert 600 is embedded in the forming part 211. A core-pulling assembly 700 is provided at a position corresponding to the third slider assembly 500. The insert 600 is provided with a receiving space 610. The forming part of the core-pulling assembly 700 is embedded in the receiving space 610. The core-pulling assembly 700 includes a first driving member 710, an inner core-pulling assembly 720, and an outer core-pulling assembly 730. The first driving member 710 has two operating stages. When the first driving member 710 is in the first operating stage, the first driving member 710 drives the inner core-pulling assembly 720 to detach from the product. When the first driving member 710 is in the second operating stage, the first driving member 710 drives the outer core-pulling assembly 730 to detach from the product.

[0035] The demolding process of the automotive interior parts mold is as follows: First, the front mold assembly 100 and the rear mold assembly 200 separate. During this process, the third slider assembly 500 also detaches from the product at the same time. Then, the first slider assembly 300 and the second slider assembly 400 detach from the product respectively. Then, the core-pulling assembly 700 detaches from the product. The detachment of the core-pulling assembly 700 from the product includes two stages.

[0036] First stage (corresponding to the first action stage of the first driving component): The first driving component 710 drives the inner core-pulling component 720 to detach from the product, while the outer core-pulling component 730 remains stationary.

[0037] Second stage (corresponding to the second action stage of the first driving component): The first driving component 710 drives the outer core-pulling assembly 730 to detach from the product;

[0038] Finally, the product is ejected by the ejection mechanism on the mold ejection plate, causing the product to detach from the forming part 211 on the rear template 210, thus completing the product demolding process. The first driving component 710 can be a hydraulic cylinder.

[0039] Since the inner core-pulling component 720 and the outer core-pulling component 730 in the core-pulling component 700 of the present invention can pull the core away from the product from the front and back respectively, after the first stage is completed, the adhesion between the product and the core-pulling component 700 is reduced. When the second stage is carried out, the product can be prevented from deforming due to the reduced adhesion between the product and the core-pulling component 700, thus ensuring the quality of the product and improving the product qualification rate.

[0040] In some embodiments, the inner core-pulling assembly 720 includes a connecting block 721, an inner core-pulling drive block 722, and an inner core-pulling component 723. The connecting block 721 is fixedly connected to the output end of the first drive member 710. One end of the inner core-pulling drive block 722 is fixedly connected to the connecting block 721, and the other end is slidably connected to the inner core-pulling component 723. When the first drive member 710 drives the connecting block 721 to move away from the product, the inner core-pulling drive block 722 drives the inner core-pulling component 723 to detach from the product. The first drive member 710 is fixed to the outside of the rear template 210. For ease of assembly, a receiving groove is provided on the side of the connecting block 721 near the first drive member 710, and the output shaft of the first drive member 710 is fixed in the receiving groove. When the first drive member 710 drives the connecting block 721 to move away from the product, the core-pulling assembly 700 is in the first stage.

[0041] Specifically, the inner core-pulling drive block 722 is provided with a first sliding groove 7221, and the inner core-pulling component 723 is provided with a first sliding protrusion 7231 that matches the first sliding groove 7221. When the core-pulling assembly 700 is in the first stage, the first sliding protrusion 7231 slides within the first sliding groove 7221, thereby causing the inner core-pulling component 723 to detach from the product.

[0042] In some embodiments, two molding parts are provided on the inner core-pulling part 723. Since the two hollow protrusions on the product are very close in distance and have the same demolding angle, the two molding parts are set on the same inner core-pulling part 723. This allows the two protrusions on the product to be molded at the same time and demolding is convenient.

[0043] The rear template 210 is provided with an installation space for installing the core-pulling assembly 700. Specifically, the rear template 210 is provided with an installation plate, and the inner core-pulling assembly 720 and the outer core-pulling assembly 730 of the core-pulling assembly 700 are located on the installation plate.

[0044] In some embodiments, the external core-pulling assembly 730 includes an external core-pulling drive block 731 and an external core-pulling component 732. A bolt 733 is provided between the external core-pulling drive block 731 and the connecting block 721 to connect the two. The connecting block 721 is provided with a bolt connection hole 7211. One end of the bolt 733 is located in the bolt connection hole 7211 and can move within the bolt connection hole 7211. An elastic element 740 is sleeved on the bolt 733 to abut against the external core-pulling drive block 731. The external core-pulling drive block 731 and the external core-pulling component 732 are slidably connected. When the core-pulling assembly 700 is in the first stage, the elastic element 740 is always in a compressed state. As the first driving member 710 slides the connecting block 721 away from the product, the end of the bolt 733 moves within the bolt connection hole 7211. When the end of the bolt 733 abuts against the bottom of the bolt connection hole 7211, the elastic element 740 is in a naturally extended state, and the first stage is completed. The first driving member 710 continues to drive the connecting block 721 to slide away from the product, and at this time, the core-pulling assembly 700 enters the second stage, that is, the first driving member 710 drives the outer core-pulling assembly 730 to detach from the product. The aforementioned elastic element 740 can be a spring.

[0045] Specifically, the outer core-pulling drive block 731 is provided with a second sliding protrusion 7311, and the outer core-pulling component 732 is provided with a second sliding groove 7321 that matches the second sliding protrusion 7311. After the core-pulling assembly 700 enters the second stage, the second sliding protrusion 7311 slides along the second sliding groove 7321, thereby causing the outer core-pulling component 732 to detach from the product.

[0046] The outer core-pulling component driving block 731 is provided with a through groove 7312, the outer core-pulling component 732 is provided with a receiving cavity 7322, the inner core-pulling component 723 is located in the receiving cavity 7322, and the inner core-pulling drive block 722 passes through the through groove 7312 and is slidably connected to the bottom of the inner core-pulling component 723, thereby making the overall structure of the core-pulling assembly 700 more compact and smaller in size.

[0047] In some embodiments, to limit the position of the inner core-pulling component 723, the outer core-pulling component 732 is provided with an elastic retaining bead 800, and the inner core-pulling component 723 is provided with a retaining groove 7232 that cooperates with the elastic retaining bead. After the first stage is completed, the elastic retaining bead 800 is just locked in the retaining groove 7232, so that the position of the inner core-pulling component 723 relative to the outer core-pulling component 732 is fixed and no longer slides relative to it.

[0048] The first slider assembly 300 is used to shape the side profile of a product. In some embodiments, the first slider assembly 300 includes a second drive member 310, a first slider connecting block 320, and a first slider base 330. The output end of the second drive member 310 is fixedly connected to the first slider connecting block 320. A first connecting groove 331 is provided on the side of the first slider base 330, and the first slider connecting block 320 is located within the first connecting groove 331. The second drive member 310 can be a hydraulic cylinder. The first connecting groove 331 is provided to facilitate the assembly of the first slider connecting block 320.

[0049] The second slider assembly 400 is used to shape the other side of the product. In some embodiments, the second slider assembly 400 includes a third drive member 410, a second slider connecting block 420, and a second slider base 430. The output end of the third drive member 410 is fixedly connected to the second slider connecting block 420. A second connecting groove 431 is provided on the side of the second slider base 430, and the second slider connecting block 420 is located in the second connecting groove 431. The third drive member 410 can be a hydraulic cylinder, and the second connecting groove 431 is provided to facilitate the assembly of the second slider connecting block 420.

[0050] In some embodiments, the third slider assembly 500 is provided with a protrusion 510, and the insert 600 is provided with a notch 620. After the mold is closed, the protrusion 510 is inserted into the notch 620. To facilitate the shaping of the molded product, the third slider assembly 500 is provided with a guide hole. When the front mold assembly 100 and the rear mold assembly 200 are separated, the inclined guide rod on the front mold assembly 100 will drive the third slider assembly 500 to detach from the product.

[0051] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention, but it should not be construed as limiting the specific implementation of the invention to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. A mold for automotive interior parts, characterized in that: The system includes a front mold assembly (100) and a rear mold assembly (200). The rear mold assembly (200) includes a rear template (210). The rear template (210) is provided with a first slider assembly (300), a second slider assembly (400), and a third slider assembly (500). The middle of the rear template is a forming part (211). An insert (600) is embedded in the forming part (211). A core-pulling assembly (700) is provided at the corresponding position of the third slider assembly (500). The insert (600) is provided with a receiving space (610). The molding part of the component (700) is embedded in the accommodating space (610). The core-pulling assembly (700) includes a first driving member (710), an inner core-pulling assembly (720), and an outer core-pulling assembly (730). The first driving member (710) has two operating stages. When the first driving member (710) is in the first operating stage, the first driving member (710) drives the inner core-pulling assembly (720) to detach from the product. When the first driving member (710) is in the second operating stage, the first driving member (710) drives the outer core-pulling assembly (730) to detach from the product. The inner core-pulling assembly (720) includes a connecting block (721), an inner core-pulling drive block (722), and an inner core-pulling component (723). The connecting block (721) is fixedly connected to the output end of the first drive component (710). One end of the inner core-pulling drive block (722) is fixedly connected to the connecting block (721), and the other end is slidably connected to the inner core-pulling component (723). When the first drive component (710) drives the connecting block (721) to move away from the product, the inner core-pulling drive block (722) drives the inner core-pulling component (723) to detach from the product. The inner core-pulling component (723) is provided with two molded parts; The external core-pulling assembly (730) includes an external core-pulling drive block (731) and an external core-pulling component (732). A bolt (733) is provided between the external core-pulling drive block (731) and the connecting block (721) to connect the two. The connecting block (721) is provided with a bolt connection hole (7211). One end of the bolt (733) is located in the bolt connection hole (7211) and can move in the bolt connection hole (7211). An elastic element (740) that can abut against the external core-pulling drive block (731) is sleeved on the bolt (733). The external core-pulling drive block (731) and the external core-pulling component (732) are slidably connected. The outer core-pulling component (732) is provided with an elastic retaining bead (800), and the inner core-pulling component (723) is provided with a retaining groove (7232) that cooperates with the elastic retaining bead.

2. The automotive interior component mold according to claim 1, characterized in that: The inner core-pulling drive block (722) is provided with a first sliding groove (7221), and the inner core-pulling component (723) is provided with a first sliding protrusion (7231) that matches the first sliding groove (7221).

3. The automotive interior component mold according to claim 1, characterized in that: The outer core-pulling drive block (731) is provided with a second sliding protrusion (7311), and the outer core-pulling component (732) is provided with a second sliding groove (7321) that matches the second sliding protrusion (7311).

4. The automotive interior component mold according to claim 1, characterized in that: The first slider assembly (300) includes a second drive member (310), a first slider connecting block (320) and a first slider base (330). The output end of the second drive member (310) is fixedly connected to the first slider connecting block (320). The first slider base (330) has a first connecting groove (331) on its side, and the first slider connecting block (320) is located in the first connecting groove (331).

5. The automotive interior component mold according to claim 1, characterized in that: The second slider assembly (400) includes a third driving member (410), a second slider connecting block (420), and a second slider base (430). The output end of the third driving member (410) is fixedly connected to the second slider connecting block (420). The second slider base (430) has a second connecting groove (431) on its side, and the second slider connecting block (420) is located in the second connecting groove (431).

6. The automotive interior component mold according to claim 1, characterized in that: The third slider assembly (500) is provided with a protrusion (510), and the insert (600) is provided with a notch (620). After the mold is closed, the protrusion (510) is inserted into the notch (620).

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