Automobile b-pillar trim plate injection mold

Abstract

The utility model discloses a kind of automobile B column decorative plate injection mould, the B column decorative plate includes decorative plate main body, the decorative plate main body is equipped with first edge and second edge, the first edge is equipped with installation extension edge, second edge extends and is equipped with mounting portion, the decorative plate main body is equipped with several special-shaped reinforcing ribs on close installation extension edge, the injection mould includes first injection mould seat and the second injection mould seat matched with it, the first injection mould seat is equipped with first template, and the second injection mould seat is equipped with the second template matched with the first template;Two pairs of B column decorative plate forming female cavity are equipped on the first template, and the second template is equipped with the B column decorative plate forming male cavity matched with the two pairs of B column decorative plate forming female cavity.The utility model can injection two pairs of B column decorative plate once, and has additional extension edge cooling cavity, can accelerate the cooling of the special structure of B column decorative plate, reduce demoulding difficulty, shorten demoulding time.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and specifically relates to an injection mold for automotive B-pillar decorative panels. Background Technology

[0002] An injection mold is a key tool used in injection molding. Its function is to inject molten plastic material into the mold cavity, where it cools and solidifies to form a plastic product of a specific shape. It is a core piece of equipment for the mass production of plastic parts and is widely used in the automotive, electronics, medical, and daily necessities industries.

[0003] The B-pillar trim panel of a regular sedan includes a trim panel body, which has a first edge and a second edge. The first edge has an extension edge, and the second edge extends to have an installation part. Several irregularly shaped reinforcing ribs are provided on the trim panel body close to the extension edge.

[0004] The existing mold uses a sloping structure, with the mold cavity exhibiting a sloping arc shape from one end of the main body of the decorative panel to the end extending to the mounting part. The mounting part is relatively low, which can easily cause overflow at the edge of the main body of the decorative panel corresponding to the mounting part during injection molding, thus affecting product quality. Furthermore, due to the special structure of the extended mounting edge and irregular reinforcing ribs of the main body of the decorative panel, demolding after injection molding is also quite difficult, requiring a longer demolding time. In addition, the existing injection mold can only inject a maximum of one pair of B-pillar decorative panels at a time, thus limiting production efficiency.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide an injection mold for automotive B-pillar decorative panels, thereby overcoming the defects in the prior art.

[0007] To achieve the above objectives, this utility model provides an injection mold for a car B-pillar decorative panel. The B-pillar decorative panel includes a main body, which has a first edge and a second edge. The first edge has an installation extension edge, and the second edge extends to have an installation portion. The main body of the decorative panel has several irregularly shaped reinforcing ribs close to the installation extension edge. The injection mold includes a first injection mold base and a second injection mold base that cooperates with it. The first injection mold base has a first template, and the second injection mold base has a second template that matches the first template. The first template has two pairs of B-pillar decorative panel forming cavities, and the second template has B-pillar decorative panel forming male cavities that match the two pairs of B-pillar decorative panel forming cavities.

[0008] Furthermore, as a preferred embodiment, the molding cavity of the B-pillar decorative panel is provided with an extended edge cooling cavity, the extended edge cooling cavity being located close to the installation extended edge of the B-pillar decorative panel.

[0009] Furthermore, as a preferred embodiment, the first template is composed of two first sub-templates, each of which has a pair of female cavities for forming the B-pillar decorative panel; the second template is composed of two second sub-templates, each of which has a pair of male cavities for forming the B-pillar decorative panel.

[0010] Furthermore, as a preferred option, both the first sub-template and the second sub-template can be replaced.

[0011] Furthermore, as a preferred embodiment, the molding cavity of the B-pillar decorative panel has an arc-shaped structure that rises from one end to the other from the mounting part of the B-pillar decorative panel; the first template has a molding limiting block at the edge of the decorative panel body corresponding to the mounting part of the B-pillar decorative panel, and the second template has a molding limiting groove that matches the molding limiting block.

[0012] Furthermore, as a preferred embodiment, the outer periphery of the first template is provided with a plurality of alignment grooves, and the outer periphery of the second template is provided with a plurality of alignment blocks that match the alignment grooves.

[0013] Furthermore, as a preferred embodiment, the first injection mold base is provided with alignment posts at its four corners, and the second injection mold base is provided with alignment holes that match the alignment posts.

[0014] Furthermore, as a preferred embodiment, locking blocks are provided at the four corners of the first injection mold base, the locking blocks being used to lock the first injection mold base and the second injection mold base together when they are closed.

[0015] Furthermore, preferably, the locking block is locked by bolts.

[0016] Furthermore, as a preferred embodiment, the first template has a first heat dissipation cavity on its outer periphery, and the second template has a second heat dissipation cavity on its outer periphery.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention can injection mold two pairs of B-pillar decorative panels at once, which can improve production efficiency;

[0019] This utility model provides an additional extended edge cooling cavity in the molding cavity of the B-pillar decorative panel, which can accelerate the cooling of the extended edge and irregular reinforcing ribs of the B-pillar decorative panel, thereby reducing the difficulty of demolding this special part during demolding and shortening the demolding time.

[0020] This utility model provides a forming limiting block at the edge of the main body of the decorative panel corresponding to the installation part of the B-pillar decorative panel. This forming limiting block can reduce the risk of overflow at this location and help ensure product accuracy. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a car B-pillar decorative panel according to the present invention;

[0022] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a schematic diagram of the first injection mold base of an injection mold for an automotive B-pillar decorative panel according to the present invention;

[0024] Figure 4 This is a schematic diagram of the second injection mold base of an injection mold for an automotive B-pillar decorative panel according to the present invention;

[0025] Figure 5 This is an enlarged schematic diagram of the extended edge cooling cavity of this utility model;

[0026] Figure 6 For the present utility model Figure 3 Enlarged view of point B in the middle;

[0027] Figure 7 For the present utility model Figure 3 Enlarged view of point C in the middle;

[0028] Figure 8 For the present utility model Figure 3 Enlarged view of point D in the middle;

[0029] Figure 9 For the present utility model Figure 4 Enlarged view of point E in the middle;

[0030] Figure 10 For the present utility model Figure 4 Enlarged view of point F in the middle;

[0031] Reference numerals: 100-B-pillar decorative panel, 110-decorative panel body, 120-first edge, 130-second edge, 140-installation extension edge, 150-installation part, 160-irregular reinforcing rib, 1-first injection mold base, 11-first template, 111-first sub-template, 12-B-pillar decorative panel molding cavity, 13-extension edge cooling cavity, 14-molding limiting block, 15-alignment groove, 16-alignment post, 17-locking block, 18-first heat dissipation cavity, 19-moving module groove, 2-second injection mold base, 21-second template, 211-second sub-template, 22-B-pillar decorative panel molding cavity, 23-molding limiting groove, 24-alignment block, 25-alignment hole, 26-second heat dissipation cavity, 27-moving module. Detailed Implementation

[0032] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0033] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.

[0034] like Figures 1-2 As shown, this embodiment provides an injection mold for a car B-pillar decorative panel. The B-pillar decorative panel 100 includes a decorative panel body 110. The decorative panel body 110 is provided with a first edge 120 and a second edge 130. The first edge 120 is provided with an installation extension edge 140, and the second edge 130 extends with an installation portion 150. The decorative panel body 110 is provided with a plurality of irregularly shaped reinforcing ribs 160 close to the installation extension edge 140.

[0035] During injection molding, overflow is likely to occur at the edges of the decorative panel body 110 and the mounting part 150, which affects product quality. Furthermore, due to the special structural design of the mounting extension edge 140 and the irregular reinforcing rib 160, demolding is more difficult after injection molding and requires a longer demolding time.

[0036] In response to the above problems, such as Figures 3-10As shown, the injection mold includes a first injection mold base 1 and a second injection mold base 2 that cooperates with it. The first injection mold base 1 is provided with a first template 11, and the second injection mold base 2 is provided with a second template 21 that matches the first template 11. The first template 11 is provided with two pairs of B-pillar decorative panel forming cavities 12, and the second template 21 is provided with B-pillar decorative panel forming male cavities 22 that match the two pairs of B-pillar decorative panel forming cavities 12.

[0037] In this embodiment, as a specific solution, the B-pillar decorative panel molding cavity 12 is provided with an extension edge cooling cavity 13, which is located close to the mounting extension edge 140 of the B-pillar decorative panel; more specifically, the extension edge cooling cavity 13 is an additional cooling cavity, which, in addition to the normal cooling of the mold, provides additional cooling for the special structural design of the mounting extension edge 140 and the irregular reinforcing rib 160, thereby facilitating subsequent demolding operations and shortening demolding time.

[0038] In this embodiment, as a specific solution, the first template 11 is composed of two first sub-templates 111, each first sub-template 111 having a pair of B-pillar decorative panel forming cavities 12; the second template 21 is composed of two second sub-templates 211, each second sub-template 211 having a pair of male cavities 22 forming with the B-pillar decorative panel.

[0039] In this embodiment, as a more specific solution, both the first sub-template 111 and the second sub-template 211 can be replaced; more specifically, both the first sub-template 111 and the two second sub-templates 211 can be replaced with different templates as needed, so that two pairs of B-pillar decorative panels can be formed at one time, or they can be used to form two different products.

[0040] In another specific embodiment, as a specific solution, the B-pillar decorative panel molding cavity 12 has an arc-shaped structure that rises from one end to the other from the mounting portion 150 of the B-pillar decorative panel; the first template 11 is provided with a molding limiting block 14 at the edge of the decorative panel body 110 corresponding to the mounting portion 150 of the B-pillar decorative panel, and the second template 21 is provided with a molding limiting groove 23 that matches the molding limiting block 14; this structure can reduce the risk of overflow at the edge of the decorative panel body 110 corresponding to the mounting portion 150, and helps to ensure the precision of the injection molded product.

[0041] In another specific embodiment, as a specific solution, the outer periphery of the first template 11 is provided with a plurality of alignment grooves 15, and the outer periphery of the second template 21 is provided with a plurality of alignment blocks 24 that match the alignment grooves 15; when the first injection mold base 1 and the second injection mold base 2 are closed, positioning is performed at the alignment grooves 15 and the alignment blocks 24, which helps to accurately close the mold.

[0042] In another specific embodiment, as a specific solution, the first injection mold base 1 is provided with alignment posts 16 at its four corners, and the second injection mold base 2 is provided with alignment holes 25 that match the alignment posts 16. When the first injection mold base 1 and the second injection mold base 2 are closed, preliminary alignment can be achieved through the cooperation of the alignment posts 16 and the alignment holes 25.

[0043] In another specific embodiment, as a specific solution, locking blocks 17 are also provided at the four corners of the first injection mold base 1. The locking blocks 17 are used to lock the first injection mold base 1 and the second injection mold base 2 when they are closed. More specifically, the locking blocks 17 are locked by bolts.

[0044] In another specific embodiment, as a specific solution, the first template 11 is provided with a first heat dissipation cavity 18 on its outer periphery, and the second template 21 is provided with a second heat dissipation cavity 26 on its outer periphery; during the injection molding process, this helps the first template 11 and the second template 21 to dissipate heat.

[0045] In another specific embodiment, as a specific solution, the second injection mold base 2 is also provided with a moving module 27, and the first injection mold base 1 is provided with a moving module groove 19 that matches the moving module 27. After injection molding is completed, during the demolding process, the moving module 27 can be used to assist in pushing the first injection mold base 1, thereby assisting in demolding.

[0046] The working principle of this utility model is as follows:

[0047] When the first injection mold base 1 and the second injection mold base 2 are closed, the alignment pin 16 and the alignment hole 25 are aligned, and the alignment block 24 and the alignment groove 15 are aligned. Then, injection molding begins in the B-pillar decorative panel forming cavity 12 and the B-pillar decorative panel forming cavity 22. During injection molding, due to the setting of the forming limit block 14, the material is less likely to overflow at the edge of the decorative panel body corresponding to the mounting part of the B-pillar decorative panel. In addition, due to the setting of the additional extended edge cooling cavity, the special design of the B-pillar decorative panel can be cooled, which helps with subsequent demolding. After injection molding is completed, when the first injection mold base 1 and the second injection mold base 2 are separated, the moving module 27 can play a role in assisting demolding. This utility model can inject two pairs of B-pillar decorative panels at one time, which can improve production efficiency.

[0048] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. An injection mold for a car B-pillar decorative panel, the B-pillar decorative panel comprising a decorative panel body, the decorative panel body having a first edge and a second edge, the first edge having an installation extension edge, the second edge having an extension mounting portion, and the decorative panel body having a plurality of irregularly shaped reinforcing ribs near the installation extension edge, characterized in that: The injection mold includes a first injection mold base and a second injection mold base that cooperates with it. The first injection mold base is provided with a first template, and the second injection mold base is provided with a second template that matches the first template. The first template is provided with two pairs of female cavities for B-pillar decorative panels, and the second template is provided with male cavities for B-pillar decorative panels that match the two pairs of female cavities for B-pillar decorative panels.

2. The injection mold for an automotive B-pillar decorative panel according to claim 1, characterized in that: The B-pillar decorative panel molding cavity is provided with an extended edge cooling cavity, which is located close to the installation extended edge of the B-pillar decorative panel.

3. The injection mold for an automotive B-pillar decorative panel according to claim 1, characterized in that: The first template consists of two first sub-templates, each of which has a pair of female cavities for forming the B-pillar decorative panel; the second template consists of two second sub-templates, each of which has a pair of male cavities for forming the B-pillar decorative panel.

4. The injection mold for an automotive B-pillar decorative panel according to claim 3, characterized in that: Both the first and second sub-templates can be replaced.

5. The injection mold for an automotive B-pillar decorative panel according to claim 1, characterized in that: The molding cavity of the B-pillar decorative panel has an arc-shaped structure that rises from low to high from one end of the mounting part of the B-pillar decorative panel to the other end; the first template is provided with a molding limiting block at the edge of the decorative panel body corresponding to the mounting part of the B-pillar decorative panel, and the second template is provided with a molding limiting groove that matches the molding limiting block.

6. The injection mold for an automotive B-pillar decorative panel according to claim 1, characterized in that: The outer periphery of the first template is provided with several alignment grooves, and the outer periphery of the second template is provided with several alignment blocks that match the alignment grooves.

7. The injection mold for an automotive B-pillar decorative panel according to claim 1, characterized in that: The first injection mold base has alignment posts at its four corners, and the second injection mold base has alignment holes that match the alignment posts.

8. The injection mold for an automotive B-pillar decorative panel according to claim 1, characterized in that: The first injection mold base is also provided with locking blocks at its four corners. The locking blocks are used to lock the first injection mold base and the second injection mold base together when they are closed.

9. The injection mold for an automotive B-pillar decorative panel according to claim 8, characterized in that: The locking block is secured by bolts.

10. The injection mold for an automotive B-pillar decorative panel according to claim 1, characterized in that: The first template has a first heat dissipation cavity on its outer periphery, and the second template has a second heat dissipation cavity on its outer periphery.

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