Plastic tail gate structure and assembling moulding bed thereof

Abstract

The utility model relates to a plastic tail gate structure and an assembling moulding bed thereof, the plastic tail gate structure comprises an upper outer plate (1), a lower outer plate (2), an inner plate (3) and bonding glue paths (4), and the bonding glue paths (4) comprise a first bonding glue path (41), a second bonding glue path (42) and a third bonding glue path (43); the upper outer plate (1) and the inner plate (3) are bonded through a first bonding glue path (41), the upper outer plate (1) and the lower outer plate (2) are bonded through a second bonding glue path (42), and the lower outer plate (2) and the inner plate (3) are bonded through a third bonding glue path (43). A doghome structure (21) is arranged at the upper end of the lower outer plate (2), and the upper outer plate (1), the lower outer plate (2) and the inner plate (3) are in lap joint at the doghome structure (21). Compared with the prior art, the composite material tail door outer plate can solve the appearance problems of root shrinkage printing, injection molding pressure lines and the like of a conventional composite material tail door outer plate, and solves the problem of poor water leakage in a gluing connection area.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile tail door, especially to a plastic tail door structure and its assembling mould. BACKGROUND

[0002] With the development of the automobile industry, the proportion of plastic tail door automobiles is more and more. At present, the outer plate and the inner plate of most plastic tail doors on the market are connected through adhesive connection, but due to the limitation of the adhesive process, the outer plate is generally connected with the inner plate through a doghouse structure in the lamp groove area, which can cause problems such as shrinkage, pressure lines and poor adhesive leakage in the outer plate appearance area; and due to the complexity of automobile modeling, especially the popular through-lamp tail door design, most plastic tail door outer plates on the market are designed as separate parts, which are divided into upper outer plate and lower outer plate, and there are problems such as poor adhesive leakage at the connection between the upper outer plate and the inner plate and the connection between the lower outer plate and the inner plate. SUMMARY

[0003] The utility model aims to provide a plastic tail door structure and its assembling mould to improve the appearance quality of the plastic tail door.

[0004] The utility model can achieve the purpose by the following technical scheme: a plastic tail door structure, comprising an upper outer plate, a lower outer plate, an inner plate and an adhesive path, the adhesive path comprising a first adhesive path, a second adhesive path and a third adhesive path;

[0005] The upper outer plate is adhered to the inner plate through the first adhesive path, the upper outer plate is adhered to the lower outer plate through the second adhesive path, and the lower outer plate is adhered to the inner plate through the third adhesive path.

[0006] The lower outer plate is provided with a doghouse structure at the upper end, and the upper outer plate, the lower outer plate and the inner plate are overlapped at the doghouse structure.

[0007] Preferably, the first adhesive path, the second adhesive path and the third adhesive path are continuous adhesive paths, and the boundaries of each adhesive path are overlapped.

[0008] Preferably, a first sealed cavity is formed between the upper outer plate and the inner plate, and a second sealed cavity is formed between the upper outer plate, the lower outer plate and the inner plate.

[0009] Further preferably, the first sealed cavity and the second sealed cavity are respectively arranged on the upper side and the lower side of the tail door glass.

[0010] More preferably, the tail door glass is arranged on the upper outer plate.

[0011] Further preferably, the first sealed cavity is provided with the first adhesive path at the edge.

[0012] Further preferably, the second sealing cavity edge is provided with a first adhesive path, a second adhesive path and a third adhesive path.

[0013] Preferably, the doghouse structure comprises an inner plate connecting side structure and an upper outer plate connecting side structure.

[0014] The inner plate connecting side structure is adhered to the inner plate through the third adhesive path, and the upper outer plate connecting side structure is adhered to the upper outer plate through the second adhesive path.

[0015] Further preferably, the doghouse structure further comprises a sealing structure, which, together with the inner plate connecting side structure and the upper outer plate connecting side structure, encloses a cavity.

[0016] Still further preferably, the upper outer plate connecting side structure comprises a first connecting part and a second connecting part arranged at an angle, the first connecting part being connected to the inner plate connecting side structure, and the second connecting part being connected to the sealing structure.

[0017] Preferably, the lower end of the upper outer plate is provided with a bending structure corresponding to the first connecting part and the second connecting part.

[0018] Further preferably, the second connecting part is provided with a groove near the end of the sealing structure for accommodating the lower end of the bending structure.

[0019] Still further preferably, the bottom of the lower end of the bending structure is flush with the sealing structure.

[0020] Preferably, the angle between the sealing structure and the inner plate connecting side structure is an acute angle, and the angle between the sealing structure and the second connecting part is an obtuse angle.

[0021] Preferably, the doghouse structure is symmetrically arranged on both sides of the upper end of the lower outer plate.

[0022] Preferably, the doghouse structure is arranged on the inner side of the upper outer plate.

[0023] An assembly mold for the above-mentioned plastic tailgate structure comprises an inner plate mold, an outer plate mold, and a driving assembly for driving the outer plate mold and the inner plate mold to combine.

[0024] Preferably, the outer plate mold is provided with an upper outer plate side mold block for placing the upper outer plate and a lower outer plate side mold block for placing the lower outer plate.

[0025] Further preferably, the upper outer plate side mold block and the lower outer plate side mold block are arranged in a staggered manner on the outer plate mold.

[0026] Further preferably, the lower outer plate side tire mold can be first combined with the inner plate tire mold under the driving of the driving assembly, and the upper outer plate side tire mold can be combined with the inner plate tire mold when the driving assembly continues to drive.

[0027] Preferably, the driving assembly comprises a cylinder.

[0028] An assembling method of the plastic tailgate structure, comprising the following steps:

[0029] First, the upper outer plate is installed on the outer plate tire mold, glue is coated on the corresponding position of the upper outer plate to form the second bonding glue path, and then the lower outer plate is installed on the outer plate tire mold, so that the second bonding glue path is pressed and combined, and then glue is coated to form the first bonding glue path and the third bonding glue path, and the overlapping positions between the two and the second bonding glue path are continuous; at the same time, the inner plate is placed on the inner plate tire mold; then the outer plate tire mold is combined with the inner plate tire mold to realize the connection of the inner and outer plates.

[0030] Alternatively, an assembling method of the plastic tailgate structure, comprising the following steps:

[0031] First, the upper outer plate and the lower outer plate are installed on the outer plate tire mold at the same time, so that the glue can be coated on the corresponding position of the upper outer plate to form the second bonding glue path, and the upper outer plate side tire mold on which the upper outer plate is located and the lower outer plate side tire mold on which the lower outer plate is located are placed in a staggered manner on the outer plate tire mold; next, glue is coated on the upper outer plate to form the first bonding glue path and the second bonding glue path, and the overlapping positions are continuous, and glue is coated on the lower outer plate to form the third bonding glue path, and the overlapping positions of the first bonding glue path, the second bonding glue path and the third bonding glue path after pressing and combining are continuous; at the same time, the inner plate is placed on the inner plate tire mold; then the outer plate tire mold with the upper outer plate side tire mold and the lower outer plate side tire mold is combined with the inner plate tire mold to realize the connection of the lower outer plate and the inner plate, and at this time, the upper outer plate is still away from the inner plate and the lower outer plate; next, the driving assembly drives the upper outer plate side tire mold to continue pressing and combining to realize the connection of the inner and outer plates.

[0032] Compared with the prior art, the utility model has the following beneficial effects:

[0033] 1. The doghouse structure of the utility model is on the lower outer plate and overlaps with the upper outer plate, which can relieve the shrinkage problem of the doghouse root of the existing composite material tailgate outer plate and improve the appearance quality of the plastic tailgate.

[0034] 2. The doghouse structure of the utility model is on the lower outer plate and is in a non-appearance area, and the shrinkage and pressure lines generated at the doghouse root are hidden by the upper outer plate, so that these defects cannot be seen from the outside, the overall appearance of the tailgate is beautiful, and the appearance quality of the plastic tailgate is improved.

[0035] 3. This utility model forms a closed loop by overlapping the adhesive channels, which can ensure that no water enters the inside of the adhesive channels and solve the water leakage problem.

[0036] 4. This utility model can solve the appearance problems of existing composite material tailgate outer panels, such as shrinkage at the base and injection molding pressure lines, and also solve the problem of water leakage in the glued joint area. This improves the appearance quality of plastic tailgates, reduces the defect rate during production, and lowers manufacturing costs.

[0037] 5. The assembly method of the plastic tailgate structure of this utility model is flexible and easy to operate, which helps to reduce the defect rate during the production of plastic tailgates. Attached Figure Description

[0038] Figure 1 This is a cross-sectional view of the plastic tailgate structure of this utility model at the doghouse structure. Figure 3 (The cross-section at BB point);

[0039] Figure 2 This is an exploded view of the plastic tailgate structure of this utility model;

[0040] Figure 3 This is a schematic diagram of the plastic tailgate structure of this utility model;

[0041] Figure 4 This is a cross-sectional view of the plastic tailgate structure of this utility model at point Y0. Figure 3 (Section AA);

[0042] Figure 5 This is a schematic diagram of the installation method of the plastic tailgate structure of this utility model;

[0043] Figure 6 This is a schematic diagram of the second method for installing the plastic tailgate structure of this utility model;

[0044] In the diagram: 1-Upper outer panel, 2-Lower outer panel, 21-Doghouse structure, 211-Inner panel connecting side structure, 212-Upper outer panel connecting side structure, 213-Sealing structure, 3-Inner panel, 4-Adhesive path, 41-First adhesive path, 42-Second adhesive path, 43-Third adhesive path, 5-First sealing cavity, 6-Second sealing cavity, 7-Tailgate glass, 8-Inner panel mold, 9-Outer panel mold, 91-Upper outer panel side tire module, 92-Lower outer panel side tire module. Detailed Implementation

[0045] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0046] It should be noted that like reference numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it should not require further defining and explaining in the subsequent views.

[0047] Some embodiments of the present application will be described in detail with reference to the drawings. The following embodiments and features of the embodiments can be combined with each other in the case of no conflict.

[0048] Embodiment 1

[0049] A plastic tailgate structure, as shown in Figures 1-3 includes an upper outer panel 1, a lower outer panel 2, an inner panel 3 and an adhesive glue path 4.

[0050] The adhesive glue path 4 includes a first adhesive glue path 41, a second adhesive glue path 42 and a third adhesive glue path 43. The first adhesive glue path 41 bonds the upper outer panel 1 and the inner panel 3, the second adhesive glue path 42 bonds the upper outer panel 1 and the lower outer panel 2, and the third adhesive glue path 43 bonds the lower outer panel 2 and the inner panel 3. The first adhesive glue path 41, the second adhesive glue path 42 and the third adhesive glue path 43 are all continuous glue paths, and the boundaries of each glue path overlap each other.

[0051] In addition, in this embodiment, a doghouse structure 21 is provided at the upper end of the lower outer panel 2, and the upper outer panel 1, the lower outer panel 2 and the inner panel 3 are lapped at the doghouse structure 21.

[0052] Embodiment 2

[0053] A plastic tailgate structure, as shown in Figure 4 The upper outer panel 1 and the inner panel 3 form a first sealed cavity 5, and the upper outer panel 1, the lower outer panel 2 and the inner panel 3 form a second sealed cavity 6. The first sealed cavity 5 and the second sealed cavity 6 are respectively arranged on the upper and lower sides of the tailgate glass 7 on the upper outer panel 1.

[0054] In addition, in this embodiment, the doghouse structure 21 includes an inner panel connecting side structure 211, an upper outer panel connecting side structure 212 and a sealing structure 213. The inner panel connecting side structure 211 is bonded to the inner panel 3 by the third adhesive glue path 43, and the upper outer panel connecting side structure 212 is bonded to the upper outer panel 1 by the second adhesive glue path 42. The sealing structure 213 and the inner panel connecting side structure 211 and the upper outer panel connecting side structure 212 form a cavity. The rest is the same as Embodiment 1.

[0055] Embodiment 3

[0056] A plastic tailgate structure, comprising an upper outer panel 1, a lower outer panel 2, an inner panel 3 and an adhesive path 4. The adhesive path 4 comprises a first adhesive path 41, a second adhesive path 42 and a third adhesive path 43. The first adhesive path 41 is adhesive for bonding the upper outer panel 1 and the inner panel 3. The second adhesive path 42 is adhesive for bonding the upper outer panel 1 and the lower outer panel 2. The third adhesive path 43 is adhesive for bonding the lower outer panel 2 and the inner panel 3.

[0057] Specifically, the first adhesive path 41, the second adhesive path 42 and the third adhesive path 43 are continuous, and the boundaries of the adhesive paths overlap with each other, so that the inside of the adhesive paths is guaranteed to be free of water entering the first sealed cavity 5 and the second sealed cavity 6 formed by the upper outer panel 1, the lower outer panel 2 and the inner panel 3, thereby achieving a sealing function.

[0058] The upper end of the lower outer panel 2 comprises a doghouse structure 21. The side structure (inner panel connecting side structure 211) of the doghouse structure 21 is bonded to the inner panel 3 by the third adhesive path 43. The angle of the inner panel connecting side structure 211 can be adjusted according to requirements to meet the bonding process requirements. The side structure (upper outer panel connecting side structure 212) of the doghouse structure 21 is bonded to the upper outer panel 1 by the second adhesive path 42. The upper outer panel 1 is bonded to the inner panel 3 by the first adhesive path 41. The adhesive paths formed by the first adhesive path 41, the second adhesive path 42 and the third adhesive path 43 are continuous and closed, thereby guaranteeing the sealing performance of the tailgate as a whole. The doghouse structure 21 is located in a non-outer appearance area, thereby guaranteeing the appearance quality requirements of the outer panel.

[0059] Embodiment 4

[0060] An assembly mold for assembling the plastic tailgate structure described in Embodiment 3, comprising an inner panel mold 8 and an outer panel mold 9.

[0061] When the plastic tailgate structure is assembled using the mold of the present embodiment, as shown in Figure 5 the following steps are included:

[0062] First, the upper outer panel 1 is installed on the outer panel mold 9, and adhesive (the second adhesive path 42) is applied at the corresponding position of the upper outer panel 1. Then, the lower outer panel 2 is installed on the outer panel mold 9, thereby achieving compression of the second adhesive path 42. Then, adhesive (the first adhesive path 41) and adhesive (the third adhesive path 43) are applied, and the overlap positions between the two and the second adhesive path 42 are guaranteed to be continuous. At the same time, the inner panel 3 is placed on the inner panel mold 8. Then, the outer panel mold 9 and the inner panel mold 8 are combined to achieve the connection of the inner and outer panels, i.e., the plastic tailgate assembly is formed.

[0063] Embodiment 5

[0064] An assembling mold for assembling the plastic tailgate structure of embodiment 3, comprising an inner panel mold 8, an outer panel mold 9 and a moving mechanism. The outer panel mold 9 is provided with an upper outer panel side mold block 91 and a lower outer panel side mold block 92.

[0065] When the plastic tailgate structure is assembled using the mold of the present embodiment, as shown in Figure 6 , the following steps are included:

[0066] First, the upper outer panel 1 and the lower outer panel 2 are simultaneously installed on the outer panel mold 9. In order to enable the glue (the second adhesive glue path 42) to be applied to the corresponding position of the upper outer panel 1, the mold block (the upper outer panel side mold block 91) where the upper outer panel 1 is located and the mold block (the lower outer panel side mold block 92) where the lower outer panel 2 is located are placed in staggered layers on the outer panel mold 9. Next, the glue (the first adhesive glue path 41) and (the second adhesive glue path 42) is applied on the upper outer panel 1 and the glue (the third adhesive glue path 43) is applied on the lower outer panel 2, and the overlapping positions of the two are ensured to be continuous. At the same time, the inner panel 3 is placed on the inner panel mold 8. Then, the outer panel mold 9 with the upper outer panel side mold block 91 and the lower outer panel side mold block 92 is combined with the inner panel mold 8 to realize the connection between the lower outer panel 2 and the inner panel 3. At this time, the upper outer panel 1 is still away from the inner panel 3 and the lower outer panel 2. Next, the moving mechanism drives the upper outer panel side mold block 91 to continue pressing to realize the connection between the inner panel and the outer panel.

[0067] The above description of the embodiments is for the purpose of enabling and using the present application by those skilled in the art. Those skilled in the art can easily make various modifications to the embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present application is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present application without departing from the scope of the present application should be within the scope of protection of the present application.

Claims

1. A plastic tailgate structure, characterized by, The tailgate comprises an upper outer plate (1), a lower outer plate (2), an inner plate (3) and adhesive paths (4), wherein the adhesive paths (4) comprise a first adhesive path (41), a second adhesive path (42) and a third adhesive path (43). The upper outer plate (1) is adhered to the inner plate (3) through the first adhesive path (41), the upper outer plate (1) is adhered to the lower outer plate (2) through the second adhesive path (42), and the lower outer plate (2) is adhered to the inner plate (3) through the third adhesive path (43). The lower outer plate (2) is provided with a doghouse structure (21) at the upper end, and the upper outer plate (1), the lower outer plate (2) and the inner plate (3) are overlapped at the doghouse structure (21).

2. The plastic tailgate structure of claim 1, wherein The first adhesive path (41), the second adhesive path (42) and the third adhesive path (43) are continuous adhesive paths, and the boundaries of the adhesive paths are overlapped with each other.

3. The plastic tailgate structure of claim 1, wherein, A first sealed cavity (5) is formed between the upper outer plate (1) and the inner plate (3), and a second sealed cavity (6) is formed between the upper outer plate (1), the lower outer plate (2) and the inner plate (3).

4. The plastic tailgate structure of claim 3, wherein, The first sealed cavity (5) and the second sealed cavity (6) are respectively arranged on the upper side and the lower side of a tailgate glass (7). The tailgate glass (7) is arranged on the upper outer plate (1). The first adhesive path (41) is arranged at the edge of the first sealed cavity (5). The first adhesive path (41), the second adhesive path (42) and the third adhesive path (43) are arranged at the edge of the second sealed cavity (6).

5. The plastic tailgate structure of claim 1, wherein The doghouse structure (21) comprises an inner plate connecting side structure (211) and an upper outer plate connecting side structure (212). The inner plate connecting side structure (211) is adhered to the inner plate (3) through the third adhesive path (43), and the upper outer plate connecting side structure (212) is adhered to the upper outer plate (1) through the second adhesive path (42).

6. The plastic tailgate structure of claim 5, wherein, The doghouse structure (21) further comprises a sealing structure (213), and the sealing structure (213), the inner plate connecting side structure (211) and the upper outer plate connecting side structure (212) form a cavity.

7. The plastic tailgate structure of claim 6, wherein, The upper outer plate connecting side structure (212) comprises a first connecting part and a second connecting part arranged at an angle, the first connecting part is connected to the inner plate connecting side structure (211), and the second connecting part is connected to the sealing structure (213).

8. The plastic tailgate structure of claim 1, wherein, Doghouse structures (21) are symmetrically arranged at the upper end of the lower outer plate (2). The doghouse structure (21) is arranged on the inner side of the upper outer plate (1).

9. An assembly jig for a plastic tailgate structure according to any one of claims 1 to 8, characterized by The tailgate comprises an inner plate mold (8), an outer plate mold (9) and a driving assembly for driving the outer plate mold and the inner plate mold to be combined.

10. The assembly mold for a plastic tailgate structure according to claim 9, wherein The outer plate mold (9) is provided with an upper outer plate side mold block (91) for placing the upper outer plate and a lower outer plate side mold block (92) for placing the lower outer plate.

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